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Research Progress on High-Temperature Modification of Nafion Membrane

Authors： XU Guoxiao，WU Junli，LI Jing，CAI Weiwei

Units： 1. School of Electronic Engineering，Guangxi University of Science and Technology，Liuzhou 545006，China；2. Faculty of Materials Science and Chemistry，China University of Geosciences，Wuhan 430074, China

KeyWords： Nafion membrane; high-temperature modification materials; fuel cell; modification strategy; proton conductivity

ClassificationCode：TM911.47

year,volume(issue):pagination： 2023,43(6):180-190

Abstract：

Nafion membrane is the most mature commercial membrane material used in proton exchange membrane fuel cell (PEMFC) due to its excellent comprehensive performance under low and medium temperature conditions. However, when the operating temperature of the fuel cell exceeds 100°C, the proton conductivity of Nafion membrane rapidly decreases due to evaporation of water loss, and the volume change caused by water loss also adversely affects its mechanical stability. On the other hand, the increase in operating temperature of the fuel cell can not only improve the kinetics of electrode-related reactions, but also effectively enhance the catalytic resistance to side-product gases such as carbon monoxide and hydrogen sulfide. Therefore, the improvement of the comprehensive performance of Nafion membrane under high-temperature and low-humidity conditions will further promote the high-temperature practical application process of PEMFC technology. In this article, the relevant research on high-temperature modification of Nafion membrane in recent years is summarized and analyzed, focusing on modification materials and modification strategies.

Funds：

国家自然科学基金项目（22179121）；广西自然科学基金项目（2023GXNSFBA026319）；广西高校中青年教师科研基础能力提升项目（2022KY0327）

AuthorIntro：

徐国效(1991-），男，山东淄博人，主要研究方向为膜材料制备与改性

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