Niobium and molybdenum co-doped La5.5WO11.25 - δ membrane with improved hydrogen permeability

被引：43

作者：

Chen, Yan ^{[1
]}

Cheng, Shunfan ^{[1
]}

Chen, Li ^{[1
]}

Wei, Yanying ^{[1
]}

Ashman, Peter J. ^{[2
]}

Wang, Haihui ^{[1
,2
]}

机构：

[1] S China Univ Technol, Sch Chem & Chem Engn, 381 Wushan Rd, Guangzhou 510640, Guangdong, Peoples R China

[2] Univ Adelaide, Sch Chem Engn, Adelaide, SA 5005, Australia

来源：

JOURNAL OF MEMBRANE SCIENCE | 2016年 / 510卷

基金：

中国国家自然科学基金; 澳大利亚研究理事会;

关键词：

Proton conductor; Membrane; Hydrogen separation; Lanthanum tungstate; CO2; stability; LANTHANUM TUNGSTATE; CONDUCTING MEMBRANES; CHEMICAL-STABILITY; OXYGEN PERMEATION; CERAMIC MEMBRANES; ENERGY STRATEGIES; PROTON CONDUCTOR; SEPARATION; ELECTROLYTE; SYSTEM;

D O I：

10.1016/j.memsci.2016.02.065

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A mixed protonic-electronic conductor made of La5.5W0.45Nb0.15Mo0.4O11.25-delta (LWNM) has been developed by partial co-substitution of W with Nb and Mo in La5.5WO11.25 (- delta) aiming to improve the hydrogen permeation property. A hydrogen permeation flux of 0.195 mL/mim.cm(2) was obtained at 1000 degrees C with a mixture of 50% H-2-50% He as the feed gas under dry condition. More importantly, there was no obvious decline of the hydrogen flux during 80 h operation even with CO2 in the feed gas. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：155 / 163

页数：9

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