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Investigation on sulfuric acid sulfonation of in-situ sol-gel derived Nafion/SiO2 composite membrane
Ke, Chang-Chun1,2; Li, Xiao-Jin1; Shen, Qiang1,2; Qu, Shu-Guo1,2; Shao, Zhi-Gang1; Yi, Bao-Lian1
关键词High Temperature Proton Exchange Membrane Fuel Cell Silica Sulfonation Composite Membrane Nafion
刊名INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
2011-03-01
DOI10.1016/j.ijhydene.2010.12.030
36期:5页:3606-3613
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Physical ; Electrochemistry ; Energy & Fuels
研究领域[WOS]Chemistry ; Electrochemistry ; Energy & Fuels
关键词[WOS]PROTON-EXCHANGE MEMBRANE ; PEM FUEL-CELLS ; PHOSPHATE NANOCOMPOSITE MEMBRANES ; HIGH-TEMPERATURE OPERATION ; ELEVATED-TEMPERATURE ; MESOPOROUS SILICA ; 100-DEGREES-C ; PERFORMANCE ; NAFION(R) ; HYBRID
英文摘要In this paper, an effective method to cover the conductivity loss of Nafion/SiO2 through sulfonation and its mechanism are studied. Nafion/SiO2 composite membranes are prepared via an in-situ sol gel route, and then sulfonated with concentrated sulfuric acid (marked as Nafion/S-SiO2). The effects of the sulfonation on properties of the Nafion/SiO2 composite membrane are investigated. The results show that sulfonation can improve the proton conductivity of the Nafion/SiO2 effectively, though it brings water-uptake loss to the composite membrane to some extent simultaneously. According to the results of FT-IR, UV resonance Raman spectroscopy, Si-29 solid-state MAS NMR and XRD, it's proved that higher conductivity of Nafion/S-SiO2 should be relevant to hydrogen bonds & chemical bonds between SiO2 nano particles and sulfuric acid molecules. While, lower water uptake & swelling ratio should be caused by hydroxyl-elimination on the surface of SiO2 nanoparticles during sulfonation. Single cell tests show that the performance of Nafion/S-SiO2 composite membranes substantially exceeds Nafion/SiO2 at 110 degrees C and 59%RH, and in the initial testing stage no performance reduction is observed. Copyright (C) 2010, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
语种英语
WOS记录号WOS:000288833600040
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文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/142487
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Lab Fuel Cell Syst & Engn, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
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Ke, Chang-Chun,Li, Xiao-Jin,Shen, Qiang,et al. Investigation on sulfuric acid sulfonation of in-situ sol-gel derived Nafion/SiO2 composite membrane[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2011,36(5):3606-3613.
APA Ke, Chang-Chun,Li, Xiao-Jin,Shen, Qiang,Qu, Shu-Guo,Shao, Zhi-Gang,&Yi, Bao-Lian.(2011).Investigation on sulfuric acid sulfonation of in-situ sol-gel derived Nafion/SiO2 composite membrane.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,36(5),3606-3613.
MLA Ke, Chang-Chun,et al."Investigation on sulfuric acid sulfonation of in-situ sol-gel derived Nafion/SiO2 composite membrane".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 36.5(2011):3606-3613.
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