Selective deposition of Pd on porous alumina support using supercritical CO2

Masahiko Matsukata*, Takashi Nishizuka, Yasushi Sekine, Eiichi Kikuchi


研究成果: Conference article査読

1 被引用数 (Scopus)


A Pd/α-Al2O3 composite membrane was prepared on a porous α-Al2O3 disk via the thermal decomposition of bis(hexafluoroacetylacetonato)Pd(II), Pd(hfac)2. Pd(hfac)2 was dissolved in supercritical CO2 at 303 K, supplied to the substrate, and thermally decomposed at 403 and 443 K. The decomposition of Pd(hfac)2 at 443 K resulted in a sufficient pore filling of substrate with Pd as well as the formation of a thin Pd top layer. The hydrogen flux through this membrane was about 1.7 times than that of a electro-less plating Pd membrane with about 20 μm thick. Hydrogen permeation was governed by the solution-diffusion mechanism which gave a high separation selectivity.

ジャーナルMaterials Research Society Symposium - Proceedings
出版ステータスPublished - 2003 7月 25
イベントMembranes Preparation Properties and Applications - Boston MA, United States
継続期間: 2002 12月 22002 12月 5

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学


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