Analyses of scanning electrochemical microscopy and electrochemical impedance spectroscopy in direct methanol fuel cells: permeability resistance and proton conductivity of polyaniline modified membrane

被引：0
作者：
S. Ben Jadi
A. El Guerraf
A. Kiss
A. El Azrak
E.A. Bazzaoui
R. Wang
J. I. Martins
M. Bazzaoui
机构：
[1] Université Ibn Zohr,Laboratoire des Matériaux et Environnement, Faculté des Sciences, Département de Chimie
[2] Université Mohammed Ier,Laboratoire de Chimie des Matériaux, Faculté des Sciences, Département de Chimie
[3] University of Pécs,Department of General and Physical Chemistry, Faculty of Sciences
[4] Hiroshima Institute of Technology,Department of Mechanical Systems Engineering, Faculty of Engineering
[5] Universidade do Porto,Faculdade de Engenharia, Departamento de Engenharia Química
来源：
Journal of Solid State Electrochemistry | 2020年 / 24卷
关键词：
SECM; Polyaniline; DMFC; Nafion; Methanol crossover; Proton conductivity;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Nafion 112/polyaniline (Na/PANi) composite membranes were synthesized by chemical polymerization of aniline on the perfluorinated structure for use in direct methanol fuel cells as a solid electrolyte. The morphology and physicochemical properties of the composite membranes were analyzed by scanning electron microscopy (SEM), attenuation Fourier reflection infrared spectroscopy (FTIR-ATR), and X-ray photoelectron spectroscopy (XPS). The electrochemical properties of the membranes were investigated by scanning electrochemical microscopy (SECM), electrochemical impedance spectroscopy (EIS), and cyclic voltammetry (CV). The results show that PANi-modified Nafion during 1 and 24 h decrease the methanol crossover by 78% and 89% and increase the proton conductivity by 17% and 2.6% respectively.
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页码：1551 / 1565
页数：14
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