Fabrication and characterization of Pd/porous TiAl alloy composite membrane for hydrogen separation

Zhifeng Wu; Yuehui He; Yao Jiang; Lieming Tang; Baiyun Huang; Nanping Xu

Fabrication and characterization of Pd/porous TiAl alloy composite membrane for hydrogen separation

Zhifeng Wu, Yuehui He, Yao Jiang, Lieming Tang, Baiyun Huang, Nanping Xu

College of Chemical Engineering

Central South University

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

Porous Ti-35%Al Al intermetallic copound was fabricated by the reactive synthesis of mixed titanium and aluminum elemental powders. The porous TiAl alloy materials with the maximum pore size of 2-3μm have been prepared by the optimized procedure. Pure Pd membrane on the porous TiAl alloy composite substrate was obtained by electroless plating. The experimental analysis showed that the surface membrane was fully dense about the thickness of 7μm. There was no interdiffusion evidence between Pd and TiAl experienced heat treatment for an enough long time at 600°C. At 500°C and the pressure difference of 0.02-0.18 MPa, the average hydrogen permeance of composite membrane was as high as 5.1 × 10^-6 mol·m^-2·s^-1· Pa^-1 and the H₂/N₂ selectivity factor was 323-400.

Original language	English
Pages (from-to)	454-460
Number of pages	7
Journal	Cailiao Yanjiu Xuebao/Chinese Journal of Materials Research
Volume	22
Issue number	5
State	Published - Oct 2008

Keywords

Composites
Electroless plating
Hydrogen separation
Palladium membrane
Porous TiAl alloy substrate

Cite this

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title = "Fabrication and characterization of Pd/porous TiAl alloy composite membrane for hydrogen separation",

abstract = "Porous Ti-35%Al Al intermetallic copound was fabricated by the reactive synthesis of mixed titanium and aluminum elemental powders. The porous TiAl alloy materials with the maximum pore size of 2-3μm have been prepared by the optimized procedure. Pure Pd membrane on the porous TiAl alloy composite substrate was obtained by electroless plating. The experimental analysis showed that the surface membrane was fully dense about the thickness of 7μm. There was no interdiffusion evidence between Pd and TiAl experienced heat treatment for an enough long time at 600°C. At 500°C and the pressure difference of 0.02-0.18 MPa, the average hydrogen permeance of composite membrane was as high as 5.1 × 10-6 mol·m-2·s-1· Pa-1 and the H2/N2 selectivity factor was 323-400.",

keywords = "Composites, Electroless plating, Hydrogen separation, Palladium membrane, Porous TiAl alloy substrate",

author = "Zhifeng Wu and Yuehui He and Yao Jiang and Lieming Tang and Baiyun Huang and Nanping Xu",

year = "2008",

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TY - JOUR

T1 - Fabrication and characterization of Pd/porous TiAl alloy composite membrane for hydrogen separation

AU - Wu, Zhifeng

AU - He, Yuehui

AU - Jiang, Yao

AU - Tang, Lieming

AU - Huang, Baiyun

AU - Xu, Nanping

PY - 2008/10

Y1 - 2008/10

N2 - Porous Ti-35%Al Al intermetallic copound was fabricated by the reactive synthesis of mixed titanium and aluminum elemental powders. The porous TiAl alloy materials with the maximum pore size of 2-3μm have been prepared by the optimized procedure. Pure Pd membrane on the porous TiAl alloy composite substrate was obtained by electroless plating. The experimental analysis showed that the surface membrane was fully dense about the thickness of 7μm. There was no interdiffusion evidence between Pd and TiAl experienced heat treatment for an enough long time at 600°C. At 500°C and the pressure difference of 0.02-0.18 MPa, the average hydrogen permeance of composite membrane was as high as 5.1 × 10-6 mol·m-2·s-1· Pa-1 and the H2/N2 selectivity factor was 323-400.

AB - Porous Ti-35%Al Al intermetallic copound was fabricated by the reactive synthesis of mixed titanium and aluminum elemental powders. The porous TiAl alloy materials with the maximum pore size of 2-3μm have been prepared by the optimized procedure. Pure Pd membrane on the porous TiAl alloy composite substrate was obtained by electroless plating. The experimental analysis showed that the surface membrane was fully dense about the thickness of 7μm. There was no interdiffusion evidence between Pd and TiAl experienced heat treatment for an enough long time at 600°C. At 500°C and the pressure difference of 0.02-0.18 MPa, the average hydrogen permeance of composite membrane was as high as 5.1 × 10-6 mol·m-2·s-1· Pa-1 and the H2/N2 selectivity factor was 323-400.

KW - Composites

KW - Electroless plating

KW - Hydrogen separation

KW - Palladium membrane

KW - Porous TiAl alloy substrate

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M3 - 文章

AN - SCOPUS:56349088495

SN - 1005-3093

VL - 22

SP - 454

EP - 460

JO - Cailiao Yanjiu Xuebao/Chinese Journal of Materials Research

JF - Cailiao Yanjiu Xuebao/Chinese Journal of Materials Research

IS - 5

ER -

Fabrication and characterization of Pd/porous TiAl alloy composite membrane for hydrogen separation

Abstract

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