Supercritical CO2 assisted synthesis of highly selective nafion-zeolite nanocomposite membranes for direct methanol fuel cells

被引：42
作者：
Gribov, Evgueni N.
Parkhomchuk, Ekaterina V.
Krivobokov, Ivan M.
Darr, Jawwad A.
Okunev, Alexey G.
机构：
[1] Boreskov Inst Catalysis, Pr Akad, Novosibirsk, Russia
[2] Univ London Queen Mary, Dept Mat, London, England
来源：
JOURNAL OF MEMBRANE SCIENCE | 2007年 / 297卷 / 1-2期
关键词：
Nafion membrane; DMFC; zeolite; supercritical CO2; nanocomposites; COMPOSITE DMFC MEMBRANES; INORGANIC FILLERS; PERMEABILITY; ELECTROLYTE; PERFORMANCE; SOLVENT;
D O I：
10.1016/j.memsci.2007.03.020
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
We report the synthesis of nafion-zeolite (Fe-silicalite-1) nanocomposite membranes using either a supercritical CO2 pre-treatment followed by impregnation with zeolite nanoparticles or in situ synthesis of Fe-silicalite-1 inside the pores of nafion membrane. The effects of the supercritical CO2 activation and the size of embedded zeolite particles on the proton conductivity and methanol permeability of composite membranes are observed. In selected cases, the membranes exhibit extremely low methanol permeability and high selectivity (defined as proton conductivity/methanol permeability ratio). (c) 2007 Elsevier B.V. All rights reserved.
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页码：1 / 4
页数：4
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