Fabrication of a novel Pd/γ-alumina graded membrane by electroless plating on nanoporous γ-alumina

Masahiro Seshimo, Minoru Ozawa, Masato Sone, Makoto Sakurai, Hideo Kameyama

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

This study investigated a method of electroless plating to fabricate a novel functionally graded Pd/γ-alumina/anodic alumina composite membrane. Electroless plating reactions were carried out on catalyzed anodic alumina surfaces and on catalyzed nanoporous γ-alumina in an electroless plating solution. The reactions readily formed a smooth Pd membrane on the catalyzed nanoporous γ-alumina, but failed to form a Pd membrane on the catalyzed anodic alumina. According to surface SEM images, assessment of the rate of Pd deposition into the nanoporous γ-alumina, and cross-section analysis by EPMA, the Pd membrane grew into the nanoporous γ-alumina in the direction of depth from 2 h up to 5 h during the electroless plating reaction, and then grew upward in the direction of thickness after 5 h. The agitation speed of the electroless plating bath influenced the growth of the Pd/γ-alumina graded layer from 2 to 5 h during the reaction, and also influenced the crystalline growth of the Pd.

Original languageEnglish
Pages (from-to)181-187
Number of pages7
JournalJournal of Membrane Science
Volume324
Issue number1-2
DOIs
Publication statusPublished - 2008 Oct 31
Externally publishedYes

Fingerprint

Aluminum Oxide
Electroless plating
plating
Alumina
aluminum oxides
membranes
Membranes
Fabrication
fabrication
agitation
Composite membranes
Electron probe microanalysis
Growth
Baths
baths
Crystalline materials
Scanning electron microscopy
scanning electron microscopy
composite materials
cross sections

Keywords

  • γ-Alumina
  • Composite
  • Electroless plating
  • Growth mechanism
  • Palladium

ASJC Scopus subject areas

  • Filtration and Separation
  • Polymers and Plastics

Cite this

Fabrication of a novel Pd/γ-alumina graded membrane by electroless plating on nanoporous γ-alumina. / Seshimo, Masahiro; Ozawa, Minoru; Sone, Masato; Sakurai, Makoto; Kameyama, Hideo.

In: Journal of Membrane Science, Vol. 324, No. 1-2, 31.10.2008, p. 181-187.

Research output: Contribution to journalArticle

Seshimo, Masahiro ; Ozawa, Minoru ; Sone, Masato ; Sakurai, Makoto ; Kameyama, Hideo. / Fabrication of a novel Pd/γ-alumina graded membrane by electroless plating on nanoporous γ-alumina. In: Journal of Membrane Science. 2008 ; Vol. 324, No. 1-2. pp. 181-187.
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