Hydrogen separation with palladium-copper membranes on porous stainless steel with sol-gel derived ceria as diffusion barrier

Ailing Qiao, Ke Zhang, Ye Tian, Huajiang Luo, Jerry Lin, Yongdan Li

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Pd-Cu alloy membranes were prepared by electroless plating on porous stainless steel (PSS) support. Sol-gel derived ceria was introduced as the intermediate layer by a sol-dip-coating method to prevent intermetallic diffusion and to enhance the affinity between the support and membrane. High temperature permeation was carried out from 573 K to 773 K with a pressure difference of 1 atm. Properly prepared ceria layer was effective as the diffusion barrier in the temperature range examined, which is suitable for water-gas shift reaction. The hydrogen permeation flux through Pd-Cu/CeO2/PSS was lower than that of pure Pd membrane obtained in a previous study under the same conditions. The adsorptive properties of Pd in Pd-Cu system were affected by the alloying effect where H2 could be assumed to adsorb and dissociate mainly on Pd atoms. The Cu atoms in the composite membrane were non-effective for hydrogen dissociative adsorption on the surface of membrane. This is an abstract of a paper presented at the 2009 AIChE Spring National Meeting and 5th Global Congress on Process Safety (Tampa, FL 4/26-30/2009).

Original languageEnglish (US)
Title of host publicationConference Proceedings - 2009 AIChE Spring National Meeting and 5th Global Congress on Process Safety
StatePublished - Dec 1 2008
Event2009 AIChE Spring National Meeting and 5th Global Congress on Process Safety - Tampa, FL, United States
Duration: Apr 26 2009Apr 30 2009

Publication series

NameConference Proceedings - 2009 AIChE Spring National Meeting and 5th Global Congress on Process Safety

Other

Other2009 AIChE Spring National Meeting and 5th Global Congress on Process Safety
CountryUnited States
CityTampa, FL
Period4/26/094/30/09

Keywords

  • Ceria
  • Electroless plating
  • Hydrogen permeation
  • Intermediate layer
  • Palladium-copper alloy membrane
  • Sol-gel

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Safety, Risk, Reliability and Quality
  • Safety Research

Fingerprint Dive into the research topics of 'Hydrogen separation with palladium-copper membranes on porous stainless steel with sol-gel derived ceria as diffusion barrier'. Together they form a unique fingerprint.

Cite this