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过渡金属化物催化剂的合成及其在电催化中的应用方面的最新进展

Zheng-Gang Yang¹, Hui-Min Xu¹, Ting-Yu Shuai¹

¹College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China. ligaoren@scu.edu.cn.

|July 5, 2023

概括

过渡金属化物 (TMN) 与贵金属和碳材料相比,具有优越的电催化,稳定性和耐腐蚀性. 本综述涵盖了它们的合成,催化原理以及在和氧反应中的应用.

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
催化剂是一种催化剂.

背景情况:

贵金属催化剂 (例如,Pt,Ir) 对电催化非常重要,但价格昂贵且稀缺.
碳基材料通常用于电催化,其稳定性较差,腐蚀性较差.
由于其独特的特性,过渡金属化物 (TMN) 呈现出有前途的替代品.

研究的目的:

审查过渡金属化物 (TMN) 的合成方法和催化原理.
探索TMN在关键电催化反应中的应用:演化反应 (HER),氧演化反应 (OER) 和氧减少反应 (ORR).
确定TMN在催化中的局限性,挑战和未来前景.

主要方法:

文献综述和对过渡金属化物现有研究的分析.
讨论管理TMN催化活动的结构-财产关系.
检查TMN在各种电催化反应中的性能.

主要成果:

TMN表现出卓越的电催化性能,高导电性和优越的耐腐蚀性.
在TMN中,多种键类型 (金属,离子,共价) 的共存,特别是离子键,导致d频段中心移动,模仿贵金属的行为.
TMN 显示出作为 HER,OER 和 ORR 的催化剂的巨大潜力,在稳定性方面表现优于传统材料.

结论:

过渡金属化物是高效和稳定的电催化剂,为贵金属提供了可行的替代品.
对TMN的合成,催化机制和长期稳定性的进一步研究对于它们的广泛采用至关重要.
在能源转换和储存技术中推进电催化技术方面,TMN具有显著的前景.

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