Preparation and Hydrogen Permeation Properties of Thin Pd-Au Alloy Membranes Supported on Porous α-Alumina Tube

Junya Okazaki; David Alfredo Pacheco Tanaka; Margot Anabel Llosa Tanco; Yoshito Wakui; Takuji Ikeda; Fujio Mizukami; Toshishige M. Suzuki

doi:10.2320/matertrans.MBW200720

Junya Okazaki, David Alfredo Pacheco Tanaka, Margot Anabel Llosa Tanco, Yoshito Wakui, Takuji Ikeda, Fujio Mizukami, Toshishige M. Suzuki

Author information

Junya Okazaki
National Institute for Advanced Industrial Science and Technology (AIST), Research Center for Compact Chemical Process
Graduate School of Science, Tohoku University
David Alfredo Pacheco Tanaka
National Institute for Advanced Industrial Science and Technology (AIST), Research Center for Compact Chemical Process
Margot Anabel Llosa Tanco
National Institute for Advanced Industrial Science and Technology (AIST), Research Center for Compact Chemical Process
Yoshito Wakui
National Institute for Advanced Industrial Science and Technology (AIST), Research Center for Compact Chemical Process
Takuji Ikeda
National Institute for Advanced Industrial Science and Technology (AIST), Research Center for Compact Chemical Process
Fujio Mizukami
National Institute for Advanced Industrial Science and Technology (AIST), Research Center for Compact Chemical Process
Toshishige M. Suzuki
National Institute for Advanced Industrial Science and Technology (AIST), Research Center for Compact Chemical Process

Keywords: palladium-gold alloy, thin membrane, porous support, electroless plating, hydrogen permeation

JOURNAL FREE ACCESS

2008 Volume 49 Issue 3 Pages 449-452

DOI https://doi.org/10.2320/matertrans.MBW200720

Details

Abstract

Defect free palladium (Pd) and gold (Au) alloy membranes (4–5 μm thickness) supported on the porous α-alumina tubes were fabricated by electroless plating technique followed by thermal annealing. Contents of Au were adjusted from 0 to 10 mass% by controlling the concentration of K[Au(CN)₄] in the electroless plating solution. The alloy membranes were characterized by the X-ray diffraction analysis, SEM observation, and elemental analysis with EDX and ICP-atomic emission spectrophotometry (ICP-AES). The performances of the Pd-Au alloy membranes were evaluated with respect to the hydrogen flux, perm-selectivity and long term operation tested at 600°C.

Corresponding author

Register with J-STAGE for free!