聚吡咯
Nafion公司
材料科学
化学工程
扫描电子显微镜
铜
膜
镍
电极
聚合
纳米技术
无机化学
电化学
聚合物
化学
冶金
复合材料
生物化学
物理化学
工程类
作者
Sana Ben Jadi,Abdelqader El Guerraf,M. El Fazdoune,K. Bahend,M. Oubella,E.A. Bazzaoui,Rongguang Wang,M. Bazzaoui
摘要
Abstract A novel approach is developed for the preparation of a membrane electrode assembly with low methanol crossover, designed for application in direct methanol fuel cells. This method involves a two‐step process starting with the modification of a Nafion membrane through chemical oxidative polymerization of pyrrole, using FeCl 3 as an oxidant. Subsequently, galvanostatic electrodeposition of several metals (copper, nickel and silver) was performed on the previously prepared composite membrane (polypyrrole–Nafion). Scanning electron microscopy was conducted to examine the growth evolution, morphology and distribution of the deposited polypyrrole and metals. Additionally, X‐ray photoelectron analysis enabled for the identification of elemental composition and chemical states within the coating to confirm the growth evolution, morphology and oxide phases present in the coatings, as well as their structural characteristics. © 2024 Society of Chemical Industry.
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