Novel approach for the preparation of ionic liquid/imidazoledicarboxylic acid modified poly(vinyl alcohol) polyelectrolyte membranes

作者：Gohil Jaydevsinh M; Karamanev Dimitre G^*

来源：Journal of Membrane Science, 2016, 513: 33-39.

DOI：10.1016/j.memsci.2016.04.007

• Ionic liquid
• Poly(vinyl alcohol) ionic membrane
• Biogenerator
• Imidazoledicaboxylic acid
• Cross-linking

This paper first time describes the preparation of the novel ionic proton exchange membrane (ILPEM). Ionic liquid, 1-butyl-3-methylimidazol-3-ium hexafluorophosphate, has immobilized into 4,5-imidazoledicrarboxyic acid (IDC) modified PVA matrix. ILPEMs optimized by measuring the swelling properties at varying cross-link time. Membranes were characterized to evaluate functional groups, % swelling, gel content, molecular weight between cross-link, cross-link density, thermal stability and proton conductivity. The single cell performances of the membrane evaluated using a microbial fuel cell set-up (Biogenerator). Ionic membranes exhibited higher thermal stability, and proton conductivity of the membrane obtained was in order of 2.8-3.6 mS cm(-1). The Biogenerator equipped with ILPEM showed maximum current density of 1260 mA cm(-2) and power density of 245 mW cm(-2), which was higher than any of the existing conventional cathodic microbial fuel cell.

• 出版日期2016-9-1