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Fabrication and Characterization of Hydrophobic Porous Metallic Membranes for High Temperature Applications

Institute for Micro Process Engineering (IMVT), Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany
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Academic Editor: Moisès Graells
Processes 2021, 9(5), 809; https://doi.org/10.3390/pr9050809
Received: 31 March 2021 / Revised: 27 April 2021 / Accepted: 30 April 2021 / Published: 5 May 2021
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. View Full-Text
Keywords: porous metal membrane; hydrophobic; plasma enhanced—chemical vapor deposition; amorphous carbon layer; dip coating; FAS; high temperatures; stainless steel porous metal membrane; hydrophobic; plasma enhanced—chemical vapor deposition; amorphous carbon layer; dip coating; FAS; high temperatures; stainless steel
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MDPI and ACS Style

Claramunt, S.; Khurram, M.; Benzinger, W.; Kraut, M.; Dittmeyer, R. Fabrication and Characterization of Hydrophobic Porous Metallic Membranes for High Temperature Applications. Processes 2021, 9, 809. https://doi.org/10.3390/pr9050809

AMA Style

Claramunt S, Khurram M, Benzinger W, Kraut M, Dittmeyer R. Fabrication and Characterization of Hydrophobic Porous Metallic Membranes for High Temperature Applications. Processes. 2021; 9(5):809. https://doi.org/10.3390/pr9050809

Chicago/Turabian Style

Claramunt, Sara, Muhammad Khurram, Walther Benzinger, Manfred Kraut, and Roland Dittmeyer. 2021. "Fabrication and Characterization of Hydrophobic Porous Metallic Membranes for High Temperature Applications" Processes 9, no. 5: 809. https://doi.org/10.3390/pr9050809

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