Membranes

Technical membranes can be used wherever mixtures of substances need to be separated. The core competencies at the IGB lie in the shaping and functional coating of membranes. In the innovation field, we develop both hollow fiber and flat membranes via phase inversion processes and can manufacture them from laboratory to pilot scale. In addition, we have established a wide range of roll-to-roll coating processes (wet chemical, plasma processes) to optimize the separation or fouling properties of membranes.

For the development of new membranes, we also have extensive know-how in material synthesis (polymers, ceramics) and the characterization of materials, surfaces and membranes. With our own test rigs, we carry out application studies for our partners in the fields of topic listed below.

 

Moisture management

Humidifier membranes for water management in mobile fuel cell systems

 

Gas separation

O2 separation at high temperatures with ceramic hollow fiber membranes

 

Micropollutants

Membrane adsorbers for the separation of micropollutants from drinking water

 

Hydrogen technologies

Ionomer mixed-matrix membranes for electrolysis and fuel cells

 

Water purification

Forward osmosis membranes for gentle processing of complex mixtures

 

Green membranes

New filtration membranes via phase inversion processes with green solvents

Development of membranes from different materials

Polymer materials offer convincing advantages such as low costs, good processability and a wide range of possible applications. We work with commercially available polymers as well as with their modifications and, for example, (block-co)polymers produced in-house by means of radical polymerization.

Polymer membranes can be further optimized: Tailor-made mixed-matrix membranes can be created by adding particle inserts.

If the application requires more extreme conditions, for example regarding temperature, we work with fully ceramic membranes.

Polymer membranes

Mixed-matrix membranes

Ceramic membranes

Production of different geometries

Fraunhofer IGB uses different processes for the production of various types of membranes up to pilot scale.

Hollow fibers, which are characterized by a high specific surface area, are produced by wet spinning with different diameters and from different materials; asymmetric structures are also possible.

In the case of flat membranes, we manufacture both dense and porous structures; one focus is on mixed-matrix systems.  

 

Wet spinning of hollow fiber membranes

Casting process for flat membranes

Coating of membranes

To further improve the separation properties of membranes, they can be modified by various coating techniques, such as wet chemical coating, plasma treatment, interfacial polymerization, sol-gel process or electroless deposition. We have the equipment for continuous roll-to-roll coating for both hollow fiber and flat membranes.

Wet chemical modification

Plasma modification

Equipment for membrane and module manufacturing

  • Wet spinning device for hollow fiber membranes (own development)
  • Double piston spinning device for capillary membranes (Fourne)
  • Smartcoater for the production of flat membranes via phase inversion and for wet-chemical coating of flat membranes (Coatema)
  • Wet chemical external coating of hollow fiber membranes (R2R, self-made)
  • Plasma coating of hollow fiber membranes (R2R, self-made)
  • Electrospinning device (IME EC-CLI)
  • Various sintering furnaces for the manufacturing of ceramic membranes
  • Equipment for module construction, especially for static and dynamic mounting of hollow fiber membranes
Wet spinning of hollow fiber membranes
© Fraunhofer IGB
Wet spinning of hollow fiber membranes
Continuous dip coating of hollow fibre membranes.
© Walter Fogel/Fraunhofer IGB
Continuous dip coating of hollow fibre membranes.
Continuous production of flat membranes
© Fraunhofer IGB
Continuous production of flat membranes

Membrane characterization methods

  • Membrane structure (electron (SEM), AFM, fluorescence, light microscopy)
  • Pore size and pore size distribution (porometry, BET)
  • Determination of the cut-off (MWCO determination)
  • Conductivity (ions, electrons)
  • Cross-over test (e.g. H2, ethanol)
  • Mechanical properties (breaking strength and tensile strength)
  • Thermal properties (TGA, dilatometry)
  • Surface analysis (ESCA, XPS, wetting)
  • Particle analysis (size, surface charge)
  • Chemical analysis (ICP-MS, GC-MS, LC-MS, FT-IR, UV, ...)
Contact angle measuring device.
© Fraunhofer IGB
Contact angle measuring device.
Phase Inversion SEM Polymer
© Fraunhofer IGB
SEM image of a porous polymer membrane

Test rigs for application tests

  • Various test rigs for humidifying membranes
  • Gas separation (room temperature up to 1000°C)
  • Microfiltration (MF), ultrafiltration (UF), nanofiltration (NF)
  • Reverse osmosis (RO), forward osmosis (FO), pressure-retarded osmosis (PRO)
Test rig for parallel characterization of three humidifier membranes
© Fraunhofer IGB
Test rig for parallel characterization of three humidifier membranes
Test cell for determining hydrogen crossover
© Fraunhofer IGB
Test cell for determining hydrogen crossover at pressures up to 50 bar and temperatures up to 80°C
Test cell for forward osmosis membranes
© Fraunhofer IGB
Test cell for forward osmosis membranes

Projects from the innovation field membranes

June 2018 - March 2021

AMBITION

Application of Membranes in Automotive Fuel Cell Humidifiers – Performance, Stability, Pollutant Gas Tolerance

Membrane humidifiers play an important role in the fuel cell as external components for water management. In the AMBITION project, an extensive infrastructure and the necessary know-how were established to comprehensively characterize humidifier membranes. Thus, the water transfer of hollow fiber and flat membranes can now be determined automatically (24/7) and tools for rational membrane selection are available.

March 2015 - August 2017

BIOBUTANOL

Use of membranes for the processing of biobutanol by osmosis

For fermentatively produced second-generation fuels such as butanol, downstream processing is an energy-intensive and thus cost-intensive step. Through the combined use of optimized gas stripping and an osmosis-driven membrane process, a process has been developed that allows dewatering of the product stream with significantly reduced energy input. For this purpose, customized TFC flat membranes for forward osmosis were developed at the IGB.

September 2022 - August 2025

FLUID

Fluorine-free humidifying membrane and innovative membrane winding element for cathode air humidification in PEM fuel cells

A crucial factor for the performance and long-term stability of polymer electrolyte membrane (PEM) fuel cells is the water management in the fuel cell. The (cathode) humidifier plays a central role in this. Within the framework of the project, novel fluorine-free flat membranes in particular are to be developed and validated at the IGB.

January 2012 – December 2014

H2Ocean

Development of a wind-wave power open-sea platform equipped for hydrogen generation with support for multiple users of energy

The aim of the H2Ocean project is the development of an offshore platform which will harvest wind and wave power, using part of the energy on-site for multiple applications – including a multi-trophic aquaculture farm, and convert on-site the excess energy into hydrogen that can be stored and shipped to shore as green energy carrier. In the sub-project desalination the main task of IGB will be optimizing RO-membranes with low-fouling properties.

April 2021 - March 2025

H2Wind

Self-sufficient offshore H2 electrolysis

As a sub-project of the H2-Mare technology platform, the H2Wind joint project aims to develop the scientific and technological basis for the world's first direct offshore hydrogen production. Among other things, ionomer membranes for electrolysis are being developed for this purpose. In addition to the electrochemical requirements, the membranes must also ensure the necessary gas purity, i.e. the crossover of hydrogen or oxygen must be minimized. To this end, the infrastructure available at the IGB for determining gas permeation at high pressures is being further expanded.

November 2009 – November 2011

HEIMEM

Development of novel high-performance membranes for filtration

Wastewater treatment is a very topical subject of developments in the field of water purification technology. In conventional municipal wastewater treatment plants, the processes of collection, treatment and disposal are usually carried out and these are associated with high energy consumption and high investment costs. In sparsely populated areas, decentralized wastewater treatment can be advantageous.

August 2017 – December 2020

HIKS

Highly Integrated Cathode Subsystem: Development and production of a highly integrated air treatment module for use in automotive high-performance PEFCs with production-ready manufacturing technologies to realize automotive performance and cost targets

The management of the water produced played an important role in the performance and lifetime of a fuel cell. Membrane humidifiers can be used for this purpose as an external component to protect the ionomer membrane in the fuel cell from drying out at any time.

Hollow fiber membranes for blood purification

A specially developed plasma process enables the production of hollow fiber membranes that permit single-stage dialysis. The hollow fibers are functionalized in such a way that the sensitive blood cells are washed unhindered through the unmodified lumens of the hollow fibers. The blood plasma, on the other hand, is filtered through the pores of the membrane. Their surface is functionalized in such a way that inflammatory endotoxins such as lipopolysaccharides (LPS) adhere to it.

January 2017 – December 2019

MAVO MEGA

Functional membranes for save and energy efficient gas separation

So far, the industrial use of technical separation membranes has been largely set to liquid filtration and less to gas separation. In the MEGA project, mixed‑matrix membranes were developed at the Fraunhofer IGB in cooperation with three other Fraunhofer institutes, which have great potential for gas separation due to their improved separation properties compared to pure polymer coatings.

November 2019 - May 2022

MegaLyseurPlus

Development, design and construction of a modular, innovative and cost-efficient PEM electrolysis system of 1.25 MW with downstream compression plant

The overall objective of the "MegaLyseurPlus" joint project was to optimize the overall "electrolysis plant" system and to create the conditions for the development and operation of future large-scale electrolysis systems. To this end, the infrastructure for characterizing ionomer membranes was developed and set up at the IGB.

July 2011 – June 2014

Molecular Sorting

Membrane adsorbers for the separation of recyclable materials and micropollutants

Nowadays various types of membranes for water filtration are already available through commercial channels. A common feature of these membranes is that substantially different separation cut-offs are used for size exclusion. On the other hand, the underlying porous structure, which provides a highly specific surface, remains unused. Membranes for nanofiltration (NF) and reverse osmosis (RO) can in fact partially retain molecular and ionic substances.

July 2011 – October 2014

Molecular Sorting

Recovery of Metals

In the project “Molecular Sorting”, funded as part of the Fraunhofer-Gesellschaft’s "Markets Beyond Tomorrow" research program, the Fraunhofer IGB has developed new metal-recovery technologies based on the microbiological, separation and electrophysical technology know-how available at IGB.

January 2007 – December 2008

New membranes for pressure-retarded osmosis power plants

In an osmosis power plant, two water flows with different salt contents are separated by a semi-permeable membrane. The membrane is permeable for water while salt is rejected, with the effect that water continuously transfers to the high salt content side, causing an increase in pressure. The solution can then be depressurized via a turbine, producing electrical energy.

March 2021 - February 2024

NexPlas

NEXT GENERATION PLASMA CONVERSION: Integration of green hydrogen into the plasma conversion of CO2

The NexPlas project aims at the innovative combination of a plasma process with a membrane process for the synthesis of higher-value basic chemicals from CO2 and "green hydrogen". The focus of the work at the IGB is on the upscaling of the individual process areas. In addition to membrane production, work is being carried out in particular on the integration of multi-fiber module systems in a plasma torch.

February 2017 – February 2020

PiCK

Plasma-induced CO2 conversion

The Kopernikus satellite project PiCK is developing a novel process employing implementing regenerative electrical energy to utilize climate-damaging CO2 as a carbon source. A combination of plasma and membrane processes  will be used to break down CO2 into O2 and CO, which serves as the starting product for the synthesis of platform chemicals and chemical energy stores such as methanol. Within the framework of the project, gas-tight ceramic capillaries were produced at IGB for the first time. These capillaries are both CO2-stable and suitable for the separation of oxygen from a plasma.

March 2017 – February 2020

POLINOM

Polyvalent separations by flexible integration of active surfaces in membranes

In this project, new coating materials and particulate additives for filtration membranes are developed with the aim to generate membranes which – in addition to their filtration function – can adsorptively bind dissolved substances in water.

May 2021 - October 2023

SULFAMOS

Sulfate depletion by forward osmosis and hollow fiber immersion modules

One of the late effects of opencast lignite mining in Germany is the large-scale iron and sulfate contamination of ground and surface waters. Therefore, the aim of the SULFAMOS project is to develop and demonstrate a process based on forward osmosis to remove sulfate from surface and ground waters so that they can be used as irrigation and drinking water. For this purpose, hollow fibers based on celluslose acetate were developed at the IGB, which carry the separation layer on the outside and were processed from a green solvent.

Information materials

 

Brochure ”Technical Membranes – Materials, Processing, Applications”

Scientific publications

Jahr
Year
Titel/Autor:in
Title/Author
Publikationstyp
Publication Type
2023 Cellulose Acetate Hollow Fiber Membranes for Forward Osmosis Using the Green Solvent Agnique AMD 3 L
Götz, Tobias; Achenbach, Birk; Schiestel, Thomas
Zeitschriftenaufsatz
Journal Article
2023 Proof of Concept for O2 Removal with Multiple LCCF Membranes Accommodated in the Effluent of a CO2 Plasma Torch
Antunes, Rodrigo; Wiegers, Katharina; Hecimovic, Ante; Kiefer, Christian K.; Buchberger, Stefan; Meindl, Arne; Schiestel, Thomas; Schulz, Andreas; Walker, Matthias; Fantz, Ursel
Zeitschriftenaufsatz
Journal Article
2023 Block copoly(phenylquinoxaline)s as potential ionomers for proton exchange membranes
Janietz, Silvia; Egorov-Brening, Tatjana; Schiestel, Thomas; Götz, Tobias
Zeitschriftenaufsatz
Journal Article
2023 The impact of air contaminants on humidifier membrane performance
Ilk, Daniel; Frick, Viktoria; Hänel, Christopher; Schiestel, Thomas; Schoemaker, Michael; Kraus, Holger; Hoster, Harry Ernst
Zeitschriftenaufsatz
Journal Article
2022 Mixed-Matrix Membrane Adsorbers for the Simultaneous Removal of Different Pharmaceutical Micropollutants from Water
Übele, Sarah; Götz, Tobias; Ulbricht, M.; Schiestel, Thomas
Zeitschriftenaufsatz
Journal Article
2022 High-flux CO2-stable oxygen transport hollow fiber membranes through surface engineering
Buck, F.; Bunjaku, O.; Caro, J.; Schiestel, Thomas
Zeitschriftenaufsatz
Journal Article
2021 Effect of plasma atmosphere on the oxygen transport of mixed ionic and electronic conducting hollow fiber membranes
Buck, F.; Wiegers, K.; Schulz, A.; Schiestel, Thomas
Review
2021 Poly(ether sulfone) hollow fiber membranes prepared via nonsolvent-induced phase separation using the green solvent Agnique® AMD 3 L
Übele, Sarah; Johann, Kai S.; Götz, Tobias; Gronwald, Oliver; Ulbricht, Mathias; Schiestel, Thomas
Zeitschriftenaufsatz
Journal Article
2021 Thermo-responsive mixed-matrix hollow fiber membranes
Götz, Tobias; Landzettel, Jan; Schiestel, Thomas
Zeitschriftenaufsatz
Journal Article
2021 Neue Materialien und Verfahren zur Spurenstoffelimination - eine vergleichende Messstudie zur Entfernung von Diclofenac. Teil 2: Membranverfahren sowie oxidative und reduktive Verfahren
Gehrke, Ilka; Bertling, Ralf; Blömer, Jan; Somborn-Schulz, Annette; Übele, Sarah; Schiestel, Thomas; Gawel, Alina; Schemel, Christian; Mackenzie, Katrin; Wolters, Ralf; Kozariszczuk, Matthias; Kamp, Johannes; Wessling, Matthias; Simon, Ramona G.; Mangold, Klaus-Michael; Haupt, Dennis; Sievers, Michael; Muddemann, Thorben; Kunz, Ulrich; Schießer, Yuliya; Schwarz, Dana; Weißflog, Janek; Schwarz, Simona; Wunder, Anke; Heppe, Katja; Heppe, Andreas; Beery, Matan
Zeitschriftenaufsatz
Journal Article
2021 Acid catalyzed cross-linking of polyvinyl alcohol for humidifier membranes
Michele, Andre; Paschkowski, Patrick; Hänel, Christopher; Tovar, Günter; Schiestel, Thomas; Southan, Alexander
Zeitschriftenaufsatz
Journal Article
2021 Neue Materialien und Verfahren zur Spurenstoffelimination - eine vergleichende Messstudie zur Entfernung von Diclofenac. Teil 1: Sorption
Gehrke, Ilka; Bertling, Ralf; Blömer, Jan; Somborn-Schulz, Annette; Übele, Sarah; Schiestel, Thomas; Gawel, Alina; Schemel, Christian; Mackenzie, Katrin; Wolters, Ralf; Kozariszczuk, Matthias; Kamp, Johannes; Wessling, Matthias; Simon, Ramona G.; Mangold, Klaus-Michael; Haupt, Dennis; Sievers, Michael; Muddemann, Thorben; Kunz, Ulrich; Schießer, Yuliya; Schwarz, Dana; Weißflog, Janek; Schwarz, Simona; Wunder, Anke; Heppe, Katja; Heppe, Andreas; Beery, Matan
Zeitschriftenaufsatz
Journal Article
2021 MIEC Hollow-Fibre Membranes in a Plasma Membrane Reactor
Buck, F.; Wiegers, K.; Schulz, A.; Schiestel, Thomas
Zeitschriftenaufsatz
Journal Article
2021 Permeation improvement of LCCF hollow fiber membranes by spinning and sintering optimization
Buck, Frederic; Feldhoff, Armin; Caro, Jürgen; Schiestel, Thomas
Zeitschriftenaufsatz
Journal Article
2021 Keramische Hohlfasermembranen in einem Plasma-Membran-Reaktor
Buck, Frederic; Wiegers, Katharina; Schulz, Andreas; Schiestel, Thomas
Zeitschriftenaufsatz
Journal Article
2020 Mixed-Matrix-Membranen mit adsorptiven Eigenschaften für die Abtrennung von Schadstoffen
Übele, Sarah; Leberle, Anna; Li, Miao; Jeske, Michael; Ulbricht, Mathias; Schiestel, Thomas
Zeitschriftenaufsatz
Journal Article
2020 Plasmainduzierte CO2-Spaltung mit Sauerstoffabtrennung durch MIEC-Hohlfasermembranen
Buck, Frederic; Wiegers, Katharina; Kistner, Irina; Schulz, Andreas; Schiestel, Thomas
Zeitschriftenaufsatz
Journal Article
2020 A novel plasma-assisted hollow fiber membrane concept for efficiently separating oxygen from CO in a CO2 plasma
Chen, G.; Buck, F.; Kistner, I.; Widenmeyer, Marc; Schiestel, Thomas; Schulz, A.; Walker, M.; Weidenkaff, Anke
Zeitschriftenaufsatz
Journal Article
2020 Up-scaling transport in porous polymer membranes using asymptotic homogenization
Matthies, Jörn Henning; Hopp-Hirschler, Manuel; Übele, Sarah; Schiestel, Thomas; Osenberg, Markus; Manke, Ingo; Nieken, Ulrich
Zeitschriftenaufsatz
Journal Article
2020 Untersuchungen zur CO2-Konversion in einem Mikrowellenplasmabrenner
Wiegers, Katharina; Kistner, Irina; Buck, Frederic; Schiestel, Thomas; Schulz, Andreas; Walker, Matthias; Tovar, Günter
Zeitschriftenaufsatz
Journal Article
2019 Einsatz von perowskitischen Hohlfasermembranen in einem Mikrowellenplasma
Buck, Frederic; Kistner, Irina; Rösler, Christoph; Schulz, Andreas; Walker, Matthias; Tovar, Günter; Schiestel, Thomas
Zeitschriftenaufsatz
Journal Article
2018 Influence of surface properties on the dip coating behavior of hollow fiber membranes
Jesswein, Isabel; Übele, Sarah; Dieterich, Alina; Keller, Silke; Hirth, Thomas; Schiestel, Thomas
Zeitschriftenaufsatz
Journal Article
2017 Biomimetic Block Copolymer Membranes for Reconstitution of Transmembrane Proteins
Müller, Michaela; Nussberger, S.; Bieligmeyer, Matthias; Schiestel, Thomas
Zeitschriftenaufsatz
Journal Article
2017 Continuous dip coating of PVDF hollow fiber membranes with PVA for humidification
Jesswein, Isabel; Hirth, Thomas; Schiestel, Thomas
Zeitschriftenaufsatz
Journal Article
2016 Mixed-matrix membrane adsorbers for the selective binding of metal ions from diluted solutions
Niedergall, Klaus; Kopp, Denis; Besch, Sandra; Schiestel, Thomas
Zeitschriftenaufsatz
Journal Article
2016 Reconstitution of the membrane protein OmpF into biomimetic block copolymer-phospholipid hybrid membranes
Bieligmeyer, Matthias; Artukovic, Franjo; Nussberger, Stephan; Hirth, Thomas; Schiestel, Thomas; Müller, Michaela
Zeitschriftenaufsatz
Journal Article
2016 Effect of the operating temperature on hydrodynamics and membrane parameters in pressure retarded osmosis
Touati, Khaled; Tadeo, Fernando; Hänel, Christopher; Schiestel, Thomas
Zeitschriftenaufsatz
Journal Article
2015 Energy recovery using salinity differences in a multi-effect distillation system
Touati, K.; Calle, A. de la; Tadeo, F.; Roca, L.; Schiestel, Thomas; Alarcón-Padilla, D.-C.
Zeitschriftenaufsatz
Journal Article
2015 Effect of the feed and draw solution temperatures on PRO performance
Touati, Khaled; Hänel, Christopher; Tadeo, Fernando; Schiestel, Thomas
Zeitschriftenaufsatz
Journal Article
2015 Simple method for binding pollutants in water
Schiestel, Thomas
Zeitschriftenaufsatz
Journal Article
2015 Membranadsorber zur Abtrennung von Wertstoffen und Schadstoffen aus Wasser
Niedergall, Klaus; Schiestel, Thomas
Zeitschriftenaufsatz
Journal Article
2014 Impact of temperature on power recovery in osmotic power production by pressure retarded osmosis
Touati, K.; Tadeo, F.; Schiestel, Thomas
Zeitschriftenaufsatz
Journal Article
2014 Removal of micropollutants from water by nanocomposite membrane adsorbers
Niedergall, K.; Bach, Monika; Hirth, Thomas; Tovar, G.E.M.; Schiestel, Thomas
Zeitschriftenaufsatz
Journal Article
2013 Nanostructured composite adsorber membranes for the reduction of trace substances in water: The example of bisphenol A
Niedergall, Klaus; Bach, Monika; Schiestel, Thomas; Tovar, Günter
Zeitschriftenaufsatz
Journal Article
2013 Evaluation of the potential of osmotic energy as renewable energy source in realistic conditions
Touati, K.; Schiestel, Thomas
Zeitschriftenaufsatz
Journal Article
2013 Energiespeichertechnik
Möller, Kai-Christian; Althues, Holger; Berger, Thomas; Günther, Bernd; Janietz, Silvia; Klieber, Robert; Kusnezoff, Mihails; Latz, Arnulf; Marquardt, Krystan; Pastewka, Lars; Schiestel, Thomas; Schulz, Jochen; Thönnessen, Torge
Aufsatz in Buch
Book Article
2012 Challenging fabrication of hollow ceramic fiber supported Cu 3(BTC) 2 membrane for hydrogen separation
Zhou, Shuyuan; Zou, Xiaoqin; Sun, Fuxing; Zhang, Feng; Fan, Songjie; Zhao, Huijun; Schiestel, Thomas; Zhu, Guangshan
Zeitschriftenaufsatz
Journal Article
2012 Chemisorption of carbon dioxide in imidazolium based ionic liquids with carboxylic anions
Blath, J.; Deubler, N.; Hirth, Thomas; Schiestel, Thomas
Zeitschriftenaufsatz
Journal Article
2012 Nanostrukturierte Kompositadsorber-Membranen zur Entfernung von Spurenschadstoffen aus Wässern
Tovar, G.E.M.; Niedergall, K.; Bach, Monika; Schiestel, Thomas; Hirth, Thomas
Zeitschriftenaufsatz
Journal Article
2011 Evaluation of plasma-functionalized bone substitutes on the adhesion, proliferation and differentiation of human mesenchymal stem cells
Kleinhans, C.; Schneider, S.; Müller, Michael; Schiestel, Thomas; Heymer, A.; Walles, Heike; Hirth, Thomas; Kluger, Petra
Konferenzbeitrag
Conference Paper
2011 Gas solubilities in room temperature ionic liquids - Correlation between RTiL-molar mass and Henry's law constant
Blath, J.; Christ, M.; Deubler, N.; Hirth, Thomas; Schiestel, Thomas
Zeitschriftenaufsatz
Journal Article
2011 Dihydrogenimidazole modified silica-sulfonated poly(ether ether ketone) hybrid materials as electrolyte membranes for direct ethanol fuel cells
Roelofs, K.S.; Hirth, Thomas; Schiestel, Thomas
Zeitschriftenaufsatz
Journal Article
2010 On a membrane-based process for CO2 capture from internal combustion vehicles
Nicolas, C.H.; Alshebani, A.; Pera-Titus, M.; Roumegoux, J.P.; Schiestel, Thomas; Miachon, S.; Dalmon, J.A.
Zeitschriftenaufsatz
Journal Article
2010 Hydrogen production by water dissociation in surface-modified BaCoxFeyZr1-x-yO3-delta hollow-fiber membrane reactor with improved oxygen permeation
Jiang, H.; Liang, F.; Czuprat, O.; Efimov, K.; Feldhoff, A.; Schirrmeister, S.; Schiestel, Thomas; Wang, H.H.; Caro, J.
Zeitschriftenaufsatz
Journal Article
2010 Nanocomposite MFI-alumina hollow fibre membranes prepared via pore-plugging synthesis: Influence of the porous structure of hollow fibres on the gas/vapour separation performance
Deng, Z.; Nicolas, C.-H.; Daramola, M.O.; Sublet, J.; Schiestel, Thomas; Burger, A.J.; Guo, Y.; Giroir-Fendler, A.; Pera-Titus, M.
Zeitschriftenaufsatz
Journal Article
2010 High-purity oxygen production from air using perovskite hollow fiber membranes
Liang, F.; Jiang, H.; Schiestel, Thomas; Caro, J.
Zeitschriftenaufsatz
Journal Article
2010 Influence of CO2 on the oxygen permeation performance of perovskite-type BaCoxFeyZrzO3-delta hollow fiber membranes
Czuprat, O.; Arnold, M.; Schirrmeister, S.; Schiestel, Thomas; Caro, J.
Zeitschriftenaufsatz
Journal Article
2010 Improved water dissociation and nitrous oxide decomposition by in situ oxygen removal in perovskite catalytic membrane reactor
Jiang, H.Q.; Wang, H.H.; Liang, F.Y.; Werth, S.; Schirrmeister, S.; Schiestel, Thomas; Caro, J.
Zeitschriftenaufsatz
Journal Article
2010 Sulfonated poly(ether ether ketone)-based silica nanocomposite membranes for direct ethanol fuel cells
Roelofs, K.S.; Hirth, Thomas; Schiestel, Thomas
Zeitschriftenaufsatz
Journal Article
2010 Oxidative dehydrogenation of propane in a perovskite membrane reactor with multi-step oxygen insertion
Czuprat, O.; Werth, S.; Caro, J.; Schiestel, Thomas
Zeitschriftenaufsatz
Journal Article
2010 sPEEK based composite membranes for direct ethanol fuel cell applications
Roelofs, K.S.; Schiestel, Thomas
Zeitschriftenaufsatz
Journal Article
2010 A coupling strategy to produce hydrogen and ethylene in a membrane reactor
Jiang, H.; Cao, Z.; Schirrmeister, S.; Schiestel, Thomas; Caro, J.
Zeitschriftenaufsatz
Journal Article
2010 Oxidative coupling of methane in a BCFZ perovskite hollow fiber membrane reactor
Czuprat, O.; Schiestel, Thomas; Voss, H.; Caro, J.
Zeitschriftenaufsatz
Journal Article
2010 Gekoppelte Herstellung von Wasserstoff und Ethylen in einem Membranreaktor
Jiang, H.; Cao, Z.; Schirrmeister, S.; Schiestel, Thomas; Caro, J.
Zeitschriftenaufsatz
Journal Article
2010 Hydrophobic membranes for biofuel processing
Roelofs, K.; Samdani, S.; Bochert, C.; Hirth, Thomas; Schiestel, Thomas
Konferenzbeitrag
Conference Paper
2009 Oxygen selective ceramic hollow fiber membranes for partial oxidation of methane
Wang, H.; Feldhoff, A.; Caro, J.; Schiestel, Thomas; Werth, S.
Zeitschriftenaufsatz
Journal Article
2009 Development of direct ethanol fuel cell membrane electrode assemblies using sulfonated polyetheretherketone mixed-matrix membranes
Cremers, C.; Jung, F.; Kintzel, B.; Roelofs, K.S.; Schiestel, Thomas; Tübke, J.
Zeitschriftenaufsatz
Journal Article
2009 Oxidative Dehydrierung niederer Alkane in einem selektiven Membranreaktor mit gestufter Sauerstoffzugabe und In-situ-Wasserstoffoxidation
Czuprat, O.; Werth, S.; Schirrmeister, S.; Schiestel, Thomas; Caro, J.
Zeitschriftenaufsatz
Journal Article
2009 Olefin production by a multistep oxidative dehydrogenation in a perovskite hollow-fiber membrane reactor
Czuprat, O.; Werth, S.; Schirrmeister, S.; Schiestel, Thomas; Caro, J.
Zeitschriftenaufsatz
Journal Article
2009 Direct decomposition of nitrous oxide to nitrogen by in situ oxygen removal with a perovskite membrane
Jiang, H.; Wang, H.; Liang, F.; Werth, S.; Schiestel, Thomas; Caro, J.
Zeitschriftenaufsatz
Journal Article
2009 Highly effective NO decomposition by in situ removal of inhibitor oxygen using an oxygen transporting membrane
Jiang, H.Q.; Xing, L.; Czuprat, O.; Wang, H.H.; Schirrmeister, S.; Schiestel, Thomas; Caro, J.
Zeitschriftenaufsatz
Journal Article
2009 Behavior of sulfonated poly(ether ether ketone) in ethanol-water systems
Roelofs, K.S.; Kampa, A.; Hirth, Thomas; Schiestel, Thomas
Zeitschriftenaufsatz
Journal Article
2008 Simultaneous production of hydrogen and synthesis gas by combining water splitting with partial oxidation of methane in a hollow-fiber membrane reactor
Jiang, H.Q.; Wang, H.H.; Werth, S.; Schiestel, Thomas; Caro, J.
Zeitschriftenaufsatz
Journal Article
2008 Nanocomposite MFI - Ceramic hollow fibres
Alshebani, A.; Pera-Titus, M.; Landrivon, E.; Schiestel, Thomas; Miachon, S.; Dalmon, J.-A.
Konferenzbeitrag
Conference Paper
2007 Perowskit-Hohlfasermembranen für die katalytische Partialoxidation von Methan zu Synthesegas
Caro, J.; Caspary, K.J.; Hamel, C.; Hoting, B.; Kölsch, P.; Langanke, B.; Nassauer, K.; Noack, M.; Schiestel, Thomas; Schroeder, M.; Byun, Y.C.; Seidel-Morgenstern, A.; Tsotsas, E.; Wang, H.; Werth, S.
Zeitschriftenaufsatz
Journal Article
2007 Catalytic membrane reactors for partial oxidation using perovskite hollow fiber membranes and for partial hydrogenation using a catalytic membrane contactor
Caro, J.; Caspary, K.J.; Hamel, C.; Hoting, B.; Kölsch, P.; Langanke, B.; Nassauer, K.; Schiestel, Thomas; Schmidt, A.; Schomäcker, R.; Seidel-Morgenstern, A.; Tsotsas, E.; Voigt, I.; Wang, H.; Warsitz, R.; Werth, S.; Wolf, A.
Zeitschriftenaufsatz
Journal Article
2006 Novel hollow fibre membrane reactor for the partial oxidation of methane
Kleinert, A.; Feldhoff, A.; Schiestel, Thomas; Caro, J.
Konferenzbeitrag
Conference Paper
2006 Palladium coated ceramic hollow fibre membranes for hydrogen separation
Kilgus, M.; Gepert, V.; Dinges, N.; Merten, C.; Eigenberger, G.; Schiestel, Thomas
Konferenzbeitrag
Conference Paper
2006 Production of high-purity oxygen by perovskite hollow fiber membranes swept with steam
Wang, H.; Kölsch, P.; Schiestel, Thomas; Tablet, C.; Werth, S.; Caro, J.
Zeitschriftenaufsatz
Journal Article
2006 Mixed oxygen ion and electron conducting hollow fiber membranes for oxygen separation
Wang, H.; Schiestel, Thomas; Tablet, C.; Schroeder, M.; Caro, J.
Konferenzbeitrag
Conference Paper
2006 Dense perovskite hollow fibre membranes
Kilgus, M.; Wang, H.; Werth, S.; Caro, J.; Schiestel, Thomas
Zeitschriftenaufsatz
Journal Article
2006 Experimental and modeling study of the O2-enrichment by perovskite fibers
Hamel, C.; Seidel-Morgenstern, A.; Schiestel, Thomas; Werth, S.; Wang, H.; Tablet, C.; Caro, J.
Zeitschriftenaufsatz
Journal Article
2006 Surface-modified metal membrane for membrane contactor application
Lim, Y.S.; Schiestel, Thomas; Chaumette, C.
Konferenzbeitrag
Conference Paper
2006 Hollow fiber membrane reactors for the oxidative activation of ethane
Wang, H.; Tablet, C.; Schiestel, Thomas; Caro, J.
Konferenzbeitrag
Conference Paper
2006 Ceramic supported capillary Pd membranes for hydrogen separation: Potential and present limitations
Gepert, V.; Kilgus, M.; Schiestel, Thomas; Brunner, H.; Eigenberger, G.; Merten, C.; Zhang, C.X.; Yuan, Z.S.; Liu, N.; Wang, S.
Konferenzbeitrag
Conference Paper
2006 Proton conducting composite membranes with low ethanol crossover for DEFC
Mathuraiveeran, T.; Roelofs, K.; Senftleben, D.; Schiestel, Thomas
Konferenzbeitrag
Conference Paper
2006 Partial oxidation of methane to syngas in a perovskite hollow fiber membrane reactor
Wang, H.; Tablet, C.; Schiestel, Thomas; Werth, S.; Caro, J.
Zeitschriftenaufsatz
Journal Article
2006 Perovskite hollow fibre membranes in the partial oxidation of methane to synthesis gas in a membrane reactor
Caro, J.; Schiestel, Thomas; Werth, S.; Wang, H.; Kleinert, A.; Kölsch, P.
Zeitschriftenaufsatz
Journal Article
2006 Can inorganic membranes compete with organic ones? Perovskite hollow fibres for O2-separation and supported H2-selective zeolite membranes
Caro, J.; Schiestel, Thomas; Werth, S.; Wang, H.; Noack, M.
Zeitschriftenaufsatz
Journal Article
2006 Evaluation of perovskites in hollow fibre and disk geometry in catalytic membrane reactors and in oxygen separators
Caro, J.; Wang, H.H.; Tablet, C.; Kleinert, A.; Feldhoff, A.; Schiestel, Thomas; Kilgus, M.; Kölsch, P.; Werth, S.
Konferenzbeitrag
Conference Paper
2005 Moorganically modified core-shell nanoparticles for cell signalling
Weber, A.; Scheurich, P.; Pflzenmaier, K.; Schiestel, Thomas; Brunner, H.; Tovar, G.E.M.
Konferenzbeitrag
Conference Paper
2005 Perovskite hollow-fiber membranes for the production of Oxygen-enriched air
Wang, H.; Peter, S.; Schiestel, Thomas; Caro, J.
Zeitschriftenaufsatz
Journal Article
2005 Herstellung von Synthesegas unter Verwendung perowskitischer Membranen
Peter, S.; Caro, J.; Wang, H.; Schiestel, Thomas
Zeitschriftenaufsatz
Journal Article
2005 Oxygen permeation study of perovskite hollow fiber membranes
Tablet, C.; Grubert, G.; Wang, H.; Schiestel, Thomas; Schroeder, M.; Hederer, H.; Caro, J.
Konferenzbeitrag
Conference Paper
2005 Tumor necrosis factor (TNF)-functionalized nanostructured particles for the stimulation of membrane TNF-specific cell responses
Bryde, S.; Grunwald, I.; Hammer, A.; Krippner-Heidenreich, A.; Schiestel, Thomas; Brunner, H.; Tovar, G.E.M.; Pfizenmaier, K.; Scheurich, P.
Zeitschriftenaufsatz
Journal Article
2005 Hollow fibre perovskite membranes for oxygen separation
Schiestel, Thomas; Kilgus, M.; Peter, S.; Caspary, K.J.; Wang, H.; Caro, J.
Zeitschriftenaufsatz
Journal Article
2004 Controlled surface functionalization of silica nanospheres by covalent conjugation reactions and preparation of high density streptavidin nanoparticles
Schiestel, Thomas; Brunner, H.; Tovar, G.E.M.
Zeitschriftenaufsatz
Journal Article
2003 Development of an MHC-class I peptide selection assay combining nanoparticle technology and matrix-assisted laser desorption/ionisation mass spectrometry
Flad, T.; Schiestel, Thomas; Brunner, H.; Tolson, J.; Ouyang, Q.; Pawelec, G.; Müller, G.A.; Müller, C.A.; Tovar, G.E.M.; Beck, H.
Zeitschriftenaufsatz
Journal Article
2003 Palladium members for hydrogen separation
Stroh, N.; Schiestel, Thomas; Pan, X.L.
Zeitschriftenaufsatz
Journal Article
2002 Bioactive microarrays by microstructured deposition of functional nanoparticles
Tovar, G.E.M.; Weber, A.; Schiestel, Thomas; Knecht, S.; Steitz, B.; Brunner, H.
Konferenzbeitrag
Conference Paper
2002 Bioaktive Mikroarrays durch mikrostrukturierte Anlagerung von funktionellen Nanopartikeln
Weber, A.; Knecht, S.; Schiestel, Thomas; Brunner, H.; Tovar, G.E.M.
Konferenzbeitrag
Conference Paper
2002 Silica nanoparticle carrier system with special bioactivity
Schiestel, Thomas; Hammer, A.; Bryde, S.; Zimmermann, G.; Scheurich, P.; Pfizenmaier, K.; Brunner, H.; Tovar, G.E.M.
Konferenzbeitrag
Conference Paper
2001 Protein biochips for affinity-MALDI-TOF-mass spectroscopy
Tovar, G.; Hoffmann, C.; Schiestel, Thomas; Schmucker, J.
Zeitschriftenaufsatz
Journal Article
2001 Proteinchips für die Affinitäts-MALDI-TOF-Massenspektroskopie
Tovar, G.; Schiestel, Thomas; Hoffmann, C.; Schmucker, J.
Zeitschriftenaufsatz
Journal Article
2000 Silica nanoparticles modified with aminosilanes as carriers for plasmid DNA
Kneuer, C.; Sameti, M.; Haltner, E.G.; Schiestel, Thomas; Schirra, H.; Schmidt, H.; Lehr, C.-M.
Zeitschriftenaufsatz
Journal Article
2000 Surface modified silica-nanoparticles can enhance transfection in vitro. A novel class of nonviral DNA vectors
Kneuer, C.; Sameti, M.; Bakowsky, U.; Schiestel, Thomas; Schirra, H.; Schmidt, H.; Lehr, C.-M.
Zeitschriftenaufsatz
Journal Article
Diese Liste ist ein Auszug aus der Publikationsplattform Fraunhofer-Publica

This list has been generated from the publication platform Fraunhofer-Publica