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具有成本效益的电极制造方法,使用基甲基纤维素结合剂进行质子交换膜水电解

Hyung Joo Lee¹, Hyeon-Seung Jung¹, Jong Gyeong Kim¹

¹Graduate School of Energy Convergence, Institute of Integrated Technology, Gwangju Institute of Science and Technology, Gwangju 61005, Republic of Korea.

ACS applied materials & interfaces

|January 8, 2025

概括

基甲基纤维素 (HPMC) 提供了一个成本效益高的Nafion替代品,用于质子交换膜水电解 (PEMWE) 阳极. 交叉链接的HPMC提高了性能并降低了成本,尽管长期耐用性需要进一步研究.

科学领域:

材料科学材料科学材料科学
电化学电化学电化学
化学工程是化学工程的重要组成部分.

背景情况:

质子交换膜水电解 (PEMWE) 对于绿色生产至关重要.
离子,虽然有效,但昂贵和环境问题.
为PEMWE结合剂开发具有成本效益和可持续性的替代品至关重要.

研究的目的:

评估基甲基纤维素 (HPMC) 作为PEMWE的可持续和成本有效的阳极结合剂.
与Nafion相比,研究基于HPMC的阳极的性能和耐用性.
为了优化HPMC水凝形成的交叉连接过程.

主要方法:

HPMC与酸交叉连接,形成水凝粘合剂.
在单个PEMWE电池中评估电极性能.
测量了离子导电性和水友性.
在200个小时内评估了长期电压稳定性.

主要成果:

与Nafion相比,交叉连接的HPMC粘合剂将阳极成本降低了54倍.
基于HPMC的阳极的初始性能与Nafion阳极的初始性能相当.
HPMC 显示出优越的水友性和离子导电性.
在200小时内,HPMC阳极的电压衰变率高于Nafion.

结论:

交叉连接的HPMC是PEMWE阳极的一个有希望的,具有成本效益的粘合剂.
惠普MC提供了改善的水友性和离子导电性.
需要进一步的研究,以提高HPMC结合剂的长期耐用性,以便广泛采用.

关键词:

粘合剂粘合剂粘合剂交叉链接是指交叉链接.基烯基甲基纤维素.膜电极组件组件的使用质子交换膜水电解水的电解.

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