Poly(phthalazinone ether ketone ketone) anion exchange membranes with pyridinium as ion exchange groups for vanadium redox flow battery applications

被引：78

作者：

Zhang, Shouhai ^{[1
]}

Zhang, Bengui ^{[1
]}

Xing, Dongbo ^{[1
]}

Jian, Xigao ^{[1
]}

机构：

[1] Dalian Univ Technol, State Key Lab Fine Chem, Liaoning High Performance Polymer Engn Res Ctr, Liaoning Key Lab Polymer Sci & Engn,Sch Chem Engn, Dalian 116024, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2013年 / 1卷 / 39期

基金：

中国国家自然科学基金;

关键词：

BROMOMETHYLATED POLY(2,6-DIMETHYL-1,4-PHENYLENE OXIDE); CROSS-LINKED MEMBRANES; CHLOROMETHYL GROUPS; CHEMICAL-STABILITY; 4-VINYLPYRIDINE; PERMEABILITY; AMINATION; SERIES;

D O I：

10.1039/c3ta11541k

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：

Poly(phthalazinone ether ketone ketone) anion exchange membranes with pyridinium as anion exchange groups (PyPPEKK) were prepared by reacting chloromethylated poly(phthalazinone ether ketone ketone) membranes with pyridine in solution. The reaction conditions including diluent solvents, pyridine concentration, reaction time and temperature were investigated. Under the optimized reaction condition, PyPPEKK anion exchange membranes with IEC values in the range of 0.96-1.55 mmol g(-1) and water uptake in the range of 10.2-16.5% were obtained. The swelling ratio of PyPPEKK membranes in deionized water and VOSO4 solution were in the range of 3.2-10.6% and 2.5-7.8%, respectively. PyPPEKK membranes showed good chemical stability in VO2+ solution. Notably, PyPPEKK membranes had higher coulombic efficiencies of VRB and much lower vanadium permeability compared with Nafion117 membrane. The energy efficiency of VRB with PyPPEKK membrane reached 83.6% at 80 mA cm(-2) while the energy efficiency of VRB with Nafion117 membrane was 80.7% at the same charge-discharge current density. Furthermore, PyPPEKK membrane exhibited good performance in the 100-cycle charge-discharge VRB test.

引用

页码：12246 / 12254

页数：9

共 41 条

[11] Fundamental studies of a new series of anion exchange membranes: Membranes prepared from bromomethylated poly(2,6-dimethyl-1,4-phenylene oxide) (BPPO) and pyridine [J].