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Fabrication and characterization of hydrophobic porous metallic membranes for high temperature applications

Claramunt, Sara 1; Khurram, Muhammad 1; Benzinger, Walther 1; Kraut, Manfred ORCID iD icon 1; Dittmeyer, Roland 1
1 Institut für Mikroverfahrenstechnik (IMVT), Karlsruher Institut für Technologie (KIT)


Hydrophobic porous metallic membranes can be integrated in a microreactor for in situ separation of steam at high temperatures. This study investigates the fabrication and characterization of hydrophobic coatings on metallic substrates. Two different coating methods were explored: (1) Plasma Enhanced—Chemical Vapor Deposition (PE-CVD) to form amorphous carbon silicon-doped a-C:H:Si:O thin films and (2) Direct Immersion in fluoroalkyl silane (FAS-13) solution using dip coating to form Self-Assembled Monolayers. The results on wettability as well as SEM images and EDS/WDS analyses indicate that the coated sintered stainless steel membranes are adequate as hydrophobic surfaces, maintaining the porosity of the substrate and withstanding high temperatures. Especially the FAS-13 coating shows very good resistance to temperatures higher than 250 °C. These findings are of special significance for the fabrication of porous metal membranes for separation of steam in high temperature applications.

Verlagsausgabe §
DOI: 10.5445/IR/1000133863
Veröffentlicht am 14.06.2021
DOI: 10.3390/pr9050809
Zitationen: 6
Web of Science
Zitationen: 4
Zitationen: 6
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Mikroverfahrenstechnik (IMVT)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2021
Sprache Englisch
Identifikator ISSN: 2227-9717
KITopen-ID: 1000133863
HGF-Programm 38.03.02 (POF IV, LK 01) Power-based Fuels and Chemicals
Erschienen in Processes
Verlag MDPI
Band 9
Heft 5
Seiten 809
Nachgewiesen in Scopus
Web of Science
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