Enhancement in proton conductivity and methanol cross-over resistance by sulfonated boron nitride composite sulfonated poly (ether ether ketone) proton exchange membrane

被引：39
作者：
Yadav, Vikrant [1 ,2 ]
Rajput, Abhishek [1 ,3 ]
Rathod, Nehal H. [1 ,2 ]
Kulshrestha, Vaibhav [1 ,2 ]
机构：
[1] CSIR Cent Salt & Marine Chem Res Inst CSIR CSMCRI, Gijubhai Badheka Marg, Bhavnagar 364002, Gujarat, India
[2] Council Sci & Ind Res CSIR, CSIR Cent Salt & Marine Chem Res Inst CSIR CSMCRI, Acad Sci & Innovat Res, Gijubhai Badheka Marg, Bhavnagar 364002, Gujarat, India
[3] MK Bhavnagar Univ, Dept Phys, Bhavnagar 364002, Gujarat, India
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2020年 / 45卷 / 34期
基金：
俄罗斯基础研究基金会;
关键词：
BN; SPEEK; PEMs; Durability; Proton conductivity; GRAPHENE OXIDE COMPOSITE; FUEL-CELL APPLICATIONS; NANOCOMPOSITE MEMBRANE; ELECTROLYTE MEMBRANES; PERFORMANCE; POLYSULFONE; BLENDS; SPEEK; PEM;
D O I：
10.1016/j.ijhydene.2019.06.091
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：
Fuel cells are the promising new non-conventional power source for vehicles as well as portable devices. Direct methanol fuel cell (DMFC) is especially attractive since it uses low cost liquid methanol as a fuel. Proton exchange membrane is one of the most crucial part of DMFC. Herein, we synthesized the sulfonated boron nitride (SBN) based SPEEK composite membranes for the DMFC application. SBN was synthesized by covalent function-alization of hydroxylated BN by using 3-mercaptopropyl trimethoxysilane and sulfonated by subsequent oxidation of mercapto group. Sulfonated poly (ether ether ketone) is used as a polymer matrix for SBN. With well controlled content of SBN into SPEEK matrix exhibit high proton conductivity, IEC and water content along with excellent mechanical strength. Composite membranes show low methanol cross over and high selectivity, which makes them attractive candidate for proton exchange membrane for direct methanol fuel cells. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：17017 / 17028
页数：12
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