Senior Scientist


Michaela Wilhelm, Dr.rer.nat.

Am Biologischen Garten 2 IW3,
Room 2210
28359 Bremen
Tel. 0421 218 64944

Research Interests

  • Polymer derived ceramics and functional hybrid materials
  • Hierarchically structuring of ceramics
  • Sol-gel chemistry and surface functionalisation
  • Hybrid ceramic catalysts and electrocatalysts
  • Highly porous adsorbents with adjusted surface characteristic
  • Electron or ion conducting membranes for batteries or fuel cells


09/1997 – 11/2001

PhD in Chemistry, Inorganic Chemistry,

Carl von Ossietzky University of Oldenburg (Germany)

New Organomercury complexes wit thiolate and thioether ligands – Structures, Reactivities and bioinorganic aspects.


Diploma in Chemistry, Inorganic Chemistry, Carl von Ossietzky University of Oldenburg (Germany)

Synthesis and testing of new chitosan derivatives for immobilisation and separation of Cu (II) and Sn (II).

Positions and Work Experience

since 2013

Coordinator and Scientist of the DFG research training group MIMENIMA (GRK 1860), University of Bremen (Germany)

since 2009

Senior Scientist, Faculty of Production Engineering, Advanced Ceramics (Prof. K. Rezwan), University of Bremen (Germany)


Coordinator and Scientist of the DFG research training group PoreNet (GRK 1375), Faculty of Production Engineering, University of Bremen, Germany

2002- 2009

Postdoctoral research fellow, Faculty of Production Engineering, Advanced Ceramics (Prof. G. Grathwohl), University of Bremen (Germany)


PhD student (Chemistry), Bioinorganic Chemistry (Prof. H. Strasdeit), Carl von Ossietzky University of Oldenburg, Germany


Diploma student (Chemistry), Inorganic Chemistry (Prof. Pohl), Carl von Ossietzky University of Oldenburg, Germany

Awards and Fellowships

2003-2006 Postdoctoral Research Fellowship, University of Bremen, Germany


  1. Asymmetric mullite membranes manufactured by phase-inversion tape casting from polymethylsiloxane and aluminum diacetate
    Journal of Membrane Science
    Nishihora, R.Rudolph, E.Quadri, M.Hotza, .Rezwan, K.Wilhelm, M.
    2019 (): p..
  2. Polysiloxane microspheres encapsulated in carbon allotropes: A promising material for supercapacitor and carbon dioxide capture
    Journal of Colloid and Interface Science
    Moni, P.Chaves, W. F.Wilhelm, M.Rezwan, K.
    2019 542(): p.91-101.
  3. Nickel-containing hybrid ceramics derived from polysiloxanes with hierarchical porosity for CO2 methanation
    Microporous and Mesoporous Materials
    Macedo, H.Medeiros, R.Ilsemann, J.Melo, D.Rezwan, K.Wilhelm, M.
    2019 278(): p.156-166.
  4. Polymer-derived Co/Ni–SiOC(N) ceramic electrocatalysts for oxygen reduction reaction in fuel cells
    Catalysis Science & Technology
    Canuto, T.Mooste, M.Kibena-Põldsepp, E.Matisen, L.Merisalu, M.Kook, M.Sammelselg, V.Tammeveski, K.Wilhelm, M.Rezwan, K.
    2019 9(3): p.854-866.
  5. Novel tape-cast SiOC-based porous ceramic electrode materials for potential application in bioelectrochemical systems
    Journal of Materials Science
    Canuto de Almeida e Silva, T.Fernandes Kettermann, V.Pereira, C.Simões, M.Wilhelm, M.Rezwan, K.
    2019 54(8): p.6471-6487.
  6. Modified solution based freeze casting process of polysiloxanes to adjust pore morphology and surface functions of SiOC monoliths
    Materials & Design
    Schumacher, D.Wilhelm, M.Rezwan, K.
    2018 160(): p.1295-1304.
  7. Tape casting of polysiloxane-derived ceramic with controlled porosity and surface properties
    Journal of the European Ceramic Society
    Nishihora, R.Quadri, M.Hotza, D.Rezwan, K.Wilhelm, M.
    2018 (): p..
  8. Porous Polymer Derived Ceramic (PDC)-Montmorillonite-H3PMo12O40/SiO2 Composite Membranes for Microbial Fuel Cell (MFC) Application
    Ceramics International
    Ahilan, V.Wilhelm, M.Rezwan, K.
    2018 44(6): p.19191-19199.
  9. The influence of carbon nanotubes and graphene oxide sheets on the morphology, porosity, surface characteristics and thermal and electrical properties of polysiloxane derived ceramics
    RSC Advances
    Moni, P. Wilhelm, M. Rezwan, K.
    2017 7(60): p.37559-37567.
  10. Adapted MR velocimetry of slow liquid flow in porous media
    Journal of Magnetic Resonance
    Huang, L.Mikolajczyk, G.Küstermann, E.Wilhelm, M.Odenbach, S.Dreher, W.
    2017 276(): p.103-112.
  11. Wicking into porous polymer-derived ceramic monoliths fabricated by freeze-casting
    Journal of the European Ceramic Society
    Grebenyuk, Y., Zhang, H., Wilhelm, M., Rezwan, K., Dreyer, M. E.
    2017 37(5): p.1993-2000.
  12. Hierarchically ordered micro/meso/macroporous polymer-derived ceramic monoliths fabricated by freeze-casting
    Journal of the European Ceramic Society
    Zhang, H., D’Angelo Nunes, P., Wilhelm, M., Rezwan, K.
    2016 36(1): p.51-58.
  13. Preparation of novel adsorbents based on combinations of polysiloxanes and sewage sludge to remove pharmaceuticals from aqueous solutions
    Colloids and Surfaces A: Physicochemical and Engineering Aspects
    Simões dos Reis, G.Sampaio, C. H.Lima, E. C.Wilhelm, M.
    2016 497(): p.304-315.
  14. The influence of the pyrolysis temperature on the material properties of Cobalt and Nickel containing precursor derived ceramics and their catalytic use for CO2 methanation and Fischer-tropsch synthesis
    Catalysis Letters
    Schubert, M., Wilhelm, M., Bragulla, S., Sun, C., Neumann, T., Gesing, T., Pfeifer, P., Rezwan, K., Bäumer, M.
    2016 (): p.1-11.
  15. Hierarchical emulsion based hybrid ceramics synthesized with different siloxane precursor and with embedded nickel nanoparticles
    Colloids and Surfaces A: Physicochemical and Engineering Aspects
    Schlüter, F., Wilhelm, M., Meyer, J., Rezwan, K.
    2016 492(): p.190-196.
  16. The use of design of experiments for the evaluation of the production of surface rich activated carbon from sewage sludge via microwave and conventional pyrolysis
    Applied Thermal Engineering
    dos Reis, G. S., Wilhelm, M., Silva, T. C., Rezwan, K., Sampaio, C. H., Lima, E. C., de Souza, S. M. A. G. U.
    2016 93(): p.590-597.
  17. Surfactant assisted syntheses of monolithic hybrid ceramics with hierarchical porosity
    Journal of the European Ceramic Society
    Schlüter, F.Wilhelm, M.Rezwan, K.
    2015 35(11): p.2963-2972.
  18. Controlled hierarchical porosity of hybrid ceramics by leaching water soluble templates and pyrolysis
    Journal of the European Ceramic Society
    Prenzel, T., Döge, K., Motta, R. P. O., Wilhelm, M., Rezwan, K.
    2014 34(6): p.1501-1509.
  19. Tailoring surfaces of hybrid ceramics for gas adsorption – From alkanes to CO2
    Separation and Purification Technology
    Prenzel, T., de Macedo Guedes, T. L., Schlüter, F., Wilhelm, M., Rezwan, K.
    2014 129(): p.80-89.
  20. New Electrocatalysts with Pyrolyzed Siloxane Matrix
    Harms, C.,Adam, M.,Soliman, K.A.,Wilhelm, M.,Kibler, L.A.,Jacob, T.,Grathwohl, G.
    2014 5(3): p.301-309.
  21. Polysiloxane-Derived Ceramics Containing Nanowires with Catalytically Active Tips
    Journal of the American Ceramic Society
    Adam, M.Vakifahmetoglu, C.Colombo, P.Wilhelm, M.Grathwohl, G.
    2014 97(3): p.959-966.
  22. Hierarchically ordered foams derived from polysiloxanes with catalytically active coatings
    Journal of the European Ceramic Society
    Adam, M.,Kocanis, S.,Fey, T.,Wilhelm, M.,Grathwohl, G.
    2014 34(7): p.1715-1725.
  23. Generation of Pt- and Pt/Zn-containing ceramers and their structuring as macro/microporous foams
    Chemical Engineering Journal
    Adam, M., Bäumer, M., Schowalter, M., Birkenstock, J., Wilhelm, M., Grathwohl, G.
    2014 247(0): p.205-215.
  24. Tailoring amine functionalized hybrid ceramics to control CO2 adsorption
    Chemical Engineering Journal
    Prenzel, T., Wilhelm, M., Rezwan, K.
    2013 235(): p.198-206.
  25. Pyrolyzed polysiloxane membranes with tailorable hydrophobicity, porosity and high specific surface area
    Microporous and Mesoporous Materials
    Prenzel, T.,Wilhelm, M.,Rezwan, K.
    2013 169(): p.160-167.
  26. Protein adsorption on colloidal alumina particles functionalised with amino-, carboxyl-, sulfonate- and phosphate-groups
    Acta Biomaterialia
    Meder, F.,Daberkow, T.,Treccani, L.,Wilhelm, M.,Schowalter, M.,Rosenauer, A.,Mädler, L.,Rezwan, K.
    2012 8(): p.1221-1229.
  27. Polysiloxane derived hybrid ceramics with nanodispersed Pt
    Microporous and Mesoporous Materials
    Adam, M.,Wilhelm, M.,Grathwohl, G.
    2012 151(): p.195-200.
  28. Detection of Homogeneous Distribution of Functional Groups in Mesoporous Silica by Small Angle Neutron Scattering and in Situ Adsorption of Nitrogen or Water
    Sharifi, M.,Marschall, R.,Wilhelm, M.,Wallacher, D.,Wark, M.
    2011 27(9): p.5516-5522.
  29. Influence of PDMS chain length on proton conductivity in polysiloxane based membranes for HT-PEMFC application
    Journal of Membrane Science
    Harms, C.Wilhelm, M.Grathwohl, G.
    2011 383(1-2): p.135-143.
  30. Colloidal Nanoparticles Embedded in Ceramers: Toward Structurally Designed Catalysts
    The Journal of Physical Chemistry C
    Sonström, P.,Adam, M.,Wang, X.,Wilhelm, M.,Grathwohl, G.,Bäumer, M.
    2010 114(33): p.14224-14232.
  31. Development of a novel zinc/air fuel cell with a Zn foam anode, a PVA/KOH membrane and a MnO2/SiOC-based air cathode
    ECS Transactions
    Drillet, J.-F.,Adam, M.,Barg, S.,Herter, A.,Koch, D.,Schmidt, V. M.,Wilhelm, M.
    2010 28(32): p..
  32. Detailed Simulation and Characterization of Highly Proton Conducting Sulfonic Acid Functionalized Mesoporous Materials under Dry and Humidified Conditions
    J. Phys. Chem. C
    Marshall, R.,Cavalcanti, W.L.,Tölle, P.,Wilhelm, M.,Köhler, C.,Fraunheim, T.,Wark, M.
    2009 113(44): p.19218–19227.
  33. Polysiloxane Based Membranes for High Temperature Polymer Electrolyte Membrane Fuel Cells (HT-PEMFC)
    ECS Transactions
    Harms, C.,Wilhelm, M.,Grathwohl, G.
    2009 25(1): p.1669-1675.
  34. New proton conducting hybrid membranes for HT-PEMFC systems based on polysiloxanes and SO3H-functionalized mesoporous Si-MCM-41 particles
    J. Membrane Science
    Wilhelm, M.,Jeske, M.,Marschall, R.,Cavalcanti, W.,Tölle, P.,Köhler, C.,Koch, D.,Frauenheim, T.,Grathwohl, G.,Caro, J.,Wark, M.
    2008 316 (1-2): p. 164-175.
  35. Synthesis and properties of porous hybrid materials containing metallic nanoparticles
    Advanced Engineering Materials
    Wilhelm, M.,Adam, M.,Baumer, M.,Grathwohl, G.
    2008 10(3): p.241-245.
  36. Textural investigations on highly proton conductive functionalized mesoporous SiO2 nanoporous materials
    Proceedings of the 5th International Symposium - Singapore
    Marschall, R., Rathousky, J., Wilhelm, M.,Wark, M.
    2008 (): p.159-168. 
  37. Synthesis of poysiloxane based proton conducting membranes for the HT-PEMFC and their use in Membrane-Electrode-Assemblies
    J. New Mat. Electrochem Systems
    Jeske, M.,Ellenberg, Ch.,Soltmann, Ch.,Wilhelm, M.,Koch, D.,Grathwohl, G.
    2008 11(1): p.31-36. 
  38. Nanostructured praseodymium oxide: Preparation, structure, and catalytic properties
    Journal of Physical Chemistry C
    Borchert, Y.,Sonstrom, P.,Wilhelm, M.,Borchert, H.,Bäumer, M.
    2008 112(8): p.3054-3063.
  39. Functionalized mesoporous materials used as proton conductive additives for high temperature PEM fuel cell membranes
    Studies in Surface Science and Catalysis
    Marschall, R.,Wark, M.,Jeske, M.,Wilhelm, M.,Grathwohl, G.,Caro, J.
    2007 170(): p.1540-1545.
  40. Proton Conducting Membranes for the High Temperature - Polymer Electrolyte Membrane - Fuel Cell (HT - PEMFC) Based on Functionalized Polysiloxanes
    Fuel Cells, Special Issue
    Jeske, M.,Soltmann, Ch.,Ellenberg, Ch.,Wilhelm, M.,Koch, D.,Grathwohl, G.
    2007 7(1): p.40-46.
  41. Poröse Hybridkeramiken für die Adsorption von Kohlenwasserstoffen
    Chemie Ingenieur Technik
    Wilhelm, M.,Soltmann, Ch.,Koch, D.,Grathwohl, G.,
    2006 78(9): p.1329.
  42. Ceramers - Functional Materials for Adsorption Techniques
    J. Europ. Ceram. Soc.
    Wilhelm, M.,Soltmann, Ch.,Koch, D.,Grathwohl, G.
    2005 25(2-3): p.271-276.
  43. The first structurally authenticated organomercury(1+) thioether complexes - Mercury-carbon bond activation related to the mechanism of the bacterial enzyme organomercurial lyase
    European Journal of Inorganic Chemistry
    Wilhelm, M.,Deeken, S.,Berssen, E.,Saak, W.,Lutzen, A.,Koch, R.,Strasdeit, H.
    2004 (11): p.2301-2312.
  44. Crystal structure of 7-(p-toluenesulfonyl)-7-aza-1,4-dithiacyclononane, (Ts[9]aneNS2), C13H19NO2S3
    Kristallographie - New Crystal Structures
    Wilhelm, M.,Strasdeit, H.
    2003 218(): p.. 
  45. Coordination chemistry of lipoic acid and related compounds. Part 4. Experimental and theoretical studies on the 1:2 proton complex of N-(1-adamantyl)lipoamide
    New Journal of Chemistry
    Wilhelm, M.,Koch, R.,Strasdeit, H.
    2002 26(5): p.560-566.
  46. Coordination Chemistry of Lipoic Acid and Related Compounds V [1]. New Heteroditopic Ligands Derived from Monoazacrown Ethers and Lipoic Acid
    Monatshefte für Chemie / Chemical Monthly
    Wilhelm, M.,Berssen, E.Koch, R.,Strasdeit, H.
    2002 133(8): p.1097-1108.
  47. Phenylmercury Chloride: Its Single-Crystal X-Ray Structure and Some Aspects of its Biological Chemistry
    Wilhelm, M.,Saak, W.,Strasdeit, H.,
    2000 55b(): p.. 
  48. Intracellular Degradation of Diorganomercury Compounds by Biological Thiols—Insights from Model Reactions
    Angewandte Chemie International Edition
    Strasdeit, H.,von Döllen, A.,Saak, W.,Wilhelm, M.
    2000 39(4): p.784-786.<784::AID-ANIE784>3.0.CO;2-Z


  • M. Wilhelm, M. Jeske, T. Hesse, C. Soltmann, D. Koch, G. Grathwohl Katalytisch aktive Zusammensetzung, Membran-Elektroden-Einheit mit der Zusammensetzung und Katalysator mit/aus der Zusammensetzung, Patentanmeldung 10 2005 044 433.4, 16.9.2005.
  • M. Jeske, D. Koch, G. Grathwohl, C. Soltmann, C. Ellenberg, M. Wilhelm Protonenleitfähiges, vernetztes Polysiloxan mit heteroatomhaltigen funktionellen Gruppen in der Seitenkette, protonenleitfähige Membran und Verfahren zu deren Herstellung Patentanmeldung 102004023586.4, 13.5.2004. Internat. Patentanmeldung PCT/EP2005/052165, 12.5.2005.