Selective deposition of Pd on porous alumina support using supercritical CO2

Masahiko Matsukata; Takashi Nishizuka; Yasushi Sekine; Eiichi Kikuchi

Selective deposition of Pd on porous alumina support using supercritical CO₂

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

^*Corresponding author for this work

School of Advanced Science and Engineering

Research output: Contribution to journal › Conference article › peer-review

1 Citation (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	265-270
Number of pages	6
Journal	Materials Research Society Symposium - Proceedings
Volume	752
Publication status	Published - 2003 Jul 25
Event	Membranes Preparation Properties and Applications - Boston MA, United States Duration: 2002 Dec 2 → 2002 Dec 5

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Cite this

@article{60998857095c451697020d6ecdf59f46,

title = "Selective deposition of Pd on porous alumina support using supercritical CO2",

abstract = "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.",

author = "Masahiko Matsukata and Takashi Nishizuka and Yasushi Sekine and Eiichi Kikuchi",

year = "2003",

month = jul,

day = "25",

language = "English",

volume = "752",

pages = "265--270",

journal = "Materials Research Society Symposium - Proceedings",

issn = "0272-9172",

publisher = "Materials Research Society",

note = "Membranes Preparation Properties and Applications ; Conference date: 02-12-2002 Through 05-12-2002",

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TY - JOUR

T1 - Selective deposition of Pd on porous alumina support using supercritical CO2

AU - Matsukata, Masahiko

AU - Nishizuka, Takashi

AU - Sekine, Yasushi

AU - Kikuchi, Eiichi

PY - 2003/7/25

Y1 - 2003/7/25

N2 - 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.

AB - 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.

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M3 - Conference article

AN - SCOPUS:0038825726

SN - 0272-9172

VL - 752

SP - 265

EP - 270

JO - Materials Research Society Symposium - Proceedings

JF - Materials Research Society Symposium - Proceedings

T2 - Membranes Preparation Properties and Applications

Y2 - 2 December 2002 through 5 December 2002

ER -

Selective deposition of Pd on porous alumina support using supercritical CO₂

Abstract

ASJC Scopus subject areas

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