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从原子级合成到设备级反应堆:水电解的多层次方法

Xiangbowen Du¹, Menghui Qi¹, Yong Wang¹

¹Advanced Materials and Catalysis Group, Center of Chemistry for Frontier Technologies, State Key Laboratory of Clean Energy Utilization, Institute of Catalysis, Department of Chemistry, Zhejiang University, Hangzhou 310058, P. R. China.

Accounts of chemical research

|April 10, 2024

概括

开发用于水电解的先进电催化剂需要采用多层次的方法. 本研究提出了一个从微观合成到宏观反应堆设计的框架,以实现高效的生产.

科学领域:

材料科学与工程材料科学与工程
电化学电化学电化学
催化剂是一种催化剂.

背景情况:

高效且耐用的电催化剂对于为动力的社会至关重要,但在水电解方面仍然存在挑战.
目前的微层 (合成/描述) 和宏层 (评估系统) 方法缺乏全面的理解和现实的模拟.
接口化学工程是关键的,但其跨长度尺度和动态过程的应用需要进一步研究.

研究的目的:

为设计和评估高性能演化反应 (HER) 和氧演化反应 (OER) 电催化剂提出一个多规模的研究框架.
解决在现实的操作条件下理解催化剂行为的局限性.
弥合微尺度催化剂设计和宏观反应堆性能之间的差距.

主要方法:

利用微,纳米和原子尺度的化学工程接口进行催化剂设计.
采用现场/操作特征技术来监测动态界面反应和催化剂重建.
开发实验室规模的膜电极组件 (MEA) 电化学反应器,在模拟的工业条件下进行高电流密度 (>1 A cm-2) 测试.

主要成果:

证明了界面化学工程原理的应用,以设计具有增强活性和耐久性的多种电催化剂材料.
通过现场表征获得了对 HER 和 OER 机制的深刻洞察力.
开发了酸性和性MEA反应器,用于精确的电催化性能评估.

结论:

综合界面化学工程和先进表征的多尺度框架对于推进水电解是必不可少的.
在MEA反应堆中模拟工业条件可以更真实地评估催化剂潜力.
需要进一步的研究来克服现有的挑战,并利用电催化剂开发用于生产的机遇.

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