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Microwave-assisted synthesis of silica aerogel supported pt nanoparticles for self-humidifying proton exchange membrane fuel cell

被引：23
作者：
Tsai, Cheng-Hsiu
Yang, Feng-Lien
Chang, Ching-Hung
Chen-Yang, Yui Whei [1 ]
机构：
[1] Chung Yuan Christian Univ, Dept Chem, Chungli 32023, Taiwan
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2012年 / 37卷 / 09期
关键词：
Microwave-assisted; Silica aerogel; Self-humidifying proton exchange membrane; PEMFC; POLYMER ELECTROLYTE MEMBRANES; TEMPERATURE IONIC LIQUIDS; COMPOSITE MEMBRANE; ELEVATED-TEMPERATURE; MESOPOROUS SILICA; GAS-CROSSOVER; HUMIDIFICATION; PARTICLES; CATALYST; WATER;
D O I：
10.1016/j.ijhydene.2012.01.104
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this study, the mesoporous silica aerogel supported Pt nanoparticle (SAP) was synthesized by the simple microwave-assisted method within 90 s and characterized by WXRD and BET measurements. SAP was then used as a filler to prepare the self-humidifying Nafion (R)-based composite membrane (N/SAP). The dispersion of the catalyst in N/SAP as well as the water uptake and proton conductivity of N/SAP were investigated. Compared to that of the recast Nafion (R) membrane (RN), the water uptake and the proton conductivity of N/SAP was improved for about 38% and 109%, respectively. In addition, the power density of the PEMFC single cell fabricated with N/SAP at 50 degrees C was 1104 mW cm(-2) and 913 mW cm(-2) measured under the humidified condition and dry condition, respectively, which was approximately 91% and 5.5 times higher than that with RN membrane, respectively. Copyright (C) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：7669 / 7676
页数：8
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