Synthesis of sulfonated poly(fluorenyl ether thioether ketone)s with bulky-block structure and its application in vanadium redox flow battery

被引：66

作者：

Chen, Dongyang ^{[1
]}

Wang, Shuanjin ^{[1
]}

Xiao, Min ^{[1
]}

Han, Dongmei ^{[1
]}

Meng, Yuezhong ^{[1
]}

机构：

[1] Sun Yat Sen Univ, Key Lab Low Carbon Chem & Energy Conservat Guangd, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China

来源：

POLYMER | 2011年 / 52卷 / 23期

关键词：

Vanadium redox flow battery; Proton exchange membrane; Block polymer; METHANOL FUEL-CELL; EXCHANGE MEMBRANES; ELECTROLYTE; POLYMERIZATION; COPOLYMERS;

D O I：

10.1016/j.polymer.2011.09.021

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 [高分子化学与物理];

摘要：

High-molecular-weight bulky-block poly(fluorenyl ether thioether ketone)s were successfully synthesized by a two steps one-pot protocol using N,N'-dimethy-S-carbamate masked dithiols for vanadium redox flow battery (VRB) application. The followed sulfonation procedure gave birth to novel sulfonated block poly(fluorenyl ether thioether ketone)s (SPFETKs) with controlled ionic exchange capacities (IEC). Membranes with proton conductivities higher than (IEC > 1.66 mequiv.g(-1)) or comparable to (IEC < 1.66 mequiv.g(-1)) that of Nafion117 membrane were achieved. The VO2+ permeabilities of SPFETKs membranes were much lower than that of Nafion117 membrane. The thermal properties, mechanical properties, oxidative stability, water uptake, proton conductivity, VO2+ permeability and cell performance were investigated in detail. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：5312 / 5319

页数：8

共 31 条

[1]

Investigation of a direct methanol fuel cell based on a composite Nafion®-silica electrolyte for high temperature operation [J].