Advanced Pd Composite Membranes
A special issue of Membranes (ISSN 2077-0375). This special issue belongs to the section "Inorganic Membranes".
Deadline for manuscript submissions: closed (31 October 2020) | Viewed by 2269
Special Issue Editor
Special Issue Information
Dear Colleagues,
An alternative energy carrier, namely hydrogen (H2), is easily produced from the chemical reagents by using a proper catalyst via a dehydrogenation reaction and H2 facilitates the production of electricity using H2 fuel cells. Generally, H2-fuel cells need high purity H2 (>99.999%) with less than 1 ppm of CO.
Therefore, it is important to develop efficient and continuous hydrogen separation and purification techniques for the upcoming ‘hydrogen economy’. A potential technique corresponds to membrane separation that does not require a regeneration procedure. Furthermore, a membrane reactor is also applied in various catalytic reaction processes to shift thermodynamic equilibrium via Le Chatelier’s principle.
Palladium is the material that is the most examined as a H2 selective membrane due to its relatively fast and unique permeation mechanism. However, Pd membranes are limited in terms of practical industrial applications because of the high material cost and H2 embrittlement issues at low temperature under H2 atmosphere. In order to solve the problems, porous substrates and Pd-alloying schemes are employed to fabricate composite membranes that avoid H2-embrittlement under targeted operation temperatures.
Dr. Sun Hee Choi
Guest Editor
Manuscript Submission Information
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Keywords
- palladium composite membranes
- ultrathin palladium membranes
- electroless plating
- sputtering
- membrane reactor
- renewable hydrogen
