Membrane Science and Technology

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Study on Proton Exchange Membrane of SiO2/Silicotungstic Acid Modified PVA by In-situ Synthesis

Authors： LIU Shuti 1,2，GUO Guibao *2，BAN Hui 1,2，ZHAO Wenguang2

Units： 1. School of Chemistry and Chemistry Engineering, Inner Mongolia University of Science & Technology, Baotou 014010;2.School of Materials and Metallurgy,Inner Mongolia University of Science & Technology,Baotou 014010)

KeyWords： proton exchange membrane; poly(vinyl alcohol);in-situ synthesis; SiO2

ClassificationCode：TM911.48

year,volume(issue):pagination： 2015, 35(1):82-86

Abstract：

Polyvinyl alcohol (PVA) as a matrix, silica and silicon tungstate (SiWA) particles prepared by in-situ synthesis uniformly distributed in the SiO2/SiWA-m-PVA membrane. With scanning electron microscopy (SEM) and thermal gravimetric analysis(TG),the morphology and thermal stability of the membrane are characterized. The influence of mole ratio of SiCl4/sodium tungstate on conductivity and methanol permeability is studied by AC impedance spectroscopy and gas chromatography. The results show that the in-situ synthesized silica and silicon tungstate dispersed well in membrane when the molar ratio of silicon tetrachloride to sodium tungstate is 1:1.SiO2/SiWA-m-PVA membrane has good water retention below 100℃. At room temperature, the proton conductivity of 1.48× 10−2S·cm−1,methanol permeability of 1.37×10−7cm2·s-1 lower an order of magnitude than Nafion117 membrane under the same conditions, power density for direct methanol fuel cell is up to 11.82 mW?cm-2.

Funds：

内蒙古自治区高等学校科学研究项目（NJZZ13129）,

AuthorIntro：

刘书题，男，硕士研究生， e-mail: liushuti2008@163.com

Reference：

[1] KAMARUDIN S, ACHMADA F, DAUD W. Overview on the application of direct methanol fuel cell (DMFC) for portable electronic devices[J]. International Journal of Hydrogen Energey,2009,34(16):6902-6916.
[2] BENNETT B, KORAISHY B, MEYERS J.Modeling and optimization of the DMFC system: Relating materials properties to system size and performance performance[J].Journal of Power Souces, 2012, 218(15):268-279.
[3] SHARMA S, POLLET B. Support materials for PEMFC and DMFC electrocatalysts—A review[J].Journal of Power Sources,2012,208(15):96-119.
[4] ZHAO Wengao, ZHOU Xibin,CHEN Jing, etal. Controllable Electrodeposition of Platinum Nanoparticles on Graphene Nanosheet for Methanol Oxidation Reaction [J].J Clust Sci, 2013, 24(3):739-748.
[5] YANG Chunchen, LUE S J, SHIH J Y.A novel organic/inorganic polymer membrane based on poly(vinylalcohol) /poly (2-acrylamido-2- methyl-1- propanesulfonic acid/3-glycidyloxypropyl trimethoxysilane polymer electrolyte membrane for direct methanol fuel cells[J].Journal of Power Sources,2011, 196(10):4458-4467.
[6] MADAENI S, AMIRINEJAD S, AMIRINEJAD M.Phosphotungstic acid doped poly(vinyl alcohol)/poly(ether sulfone) blend composite membranes for direct methanol fuel cells[J].Journal of Membrane Science, 2011, 380(1-2):132-137.
[7] 吴翠明,徐铜文,杨伟华等. 无机- 有机复合膜应用的研究进展[J].膜科学与技术, 2003, 23(2):52-57.
[8] 张正伟.溶胶-凝胶法制备无机/有机杂化质子交换膜的研究[D].浙江大学，2006，3.
[9] 马宁，蔡芳昌，殷浩，等.交流阻抗法测试质子交换膜电导率的影响因素[J]. 高分子材料科学与工程, 2012, 28(11):125-128.
[10]HIGA M, HATEMURA K, SUGITA M. Performance of passive direct methanol fuel cell with poly(vinyl alcohol)-based polymer electrolyte membranes[J].International Journal of Hydrogen Nenergy,2012, 37(7):6292-6301.
[11]生瑜,朱德钦,陈建定.聚合物基无机纳米复合材料的制备方法原位生成法[J].高分子通报, 2001, 8(4):9-23.
[12]浦鸿汀，侯继，杨正龙.杂多酸掺杂聚酰亚胺/二氧化硅复合质子交换膜的制备和性能研究[J].功能材料，2005,36(12):1923-1930.

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