基于的电催化剂用于水分离
Andrés M R Ramírez1,2, Sima Heidari3,4,5, Ana Vergara1
1Centro de Nanotecnología Aplicada, Facultad de Ciencias, Ingeniería y Tecnología, Universidad Mayor, Camino La Pirámide 5750, 8580745 Huechuraba, Santiago RM Chile.
ACS materials Au
|December 13, 2023
概括
作为一种具有成本效益的催化剂,可以在酸性介质中促进演变和氧演变反应,这对于推进质子交换膜 (PEM) 电解剂和绿色生产至关重要.
科学领域:
- 电化学和材料科学 材料科学
- 可再生能源技术可再生能源技术
- 促进可持续能源的催化剂
背景情况:
- 对环保能源的需求不断增长,需要替代化石燃料.
- 使用可再生能源通过水电解生产的是一种关键的可持续能源载体.
- 质子交换膜 (PEM) 电解器对商业气生产有希望,但依赖于昂贵的贵金属催化剂 (Pt,Ru,Ir).
研究的目的:
- 审查以为基础的电催化剂在酸性条件下进行水分裂,重点关注它们对PEM电解剂的潜力.
- 探索的可行性,作为一种更便宜,更丰富的替代品贵金属进化反应 (HER) 和氧进化反应 (OER).
主要方法:
- 在酸性介质中用于电催化物的基材料的文献综述.
- 对HER的催化机制,评估方法和性能数据的分析.
- 在基本条件下检查在化学/光化学水氧化和电催化中的应用.
主要成果:
- 被认为是酸性介质中HER的有前途的候选物,符合理论预测 (例如,Trasatti火山情节).
- 有证据表明OER中可能存在,尽管在酸性电催化条件下的研究规模较小.
- 该审查巩固了关于在水分裂应用中的性能和稳定性的当前知识.
结论:
- 基于的材料提供了一个潜在的途径,通过取代昂贵的贵金属来降低PEM电解器的成本.
- 需要进一步的研究,以充分理解和优化的催化活性和在酸性环境中OER的长期稳定性.
- 对推进绿色生产技术和实现成熟的PEM电解市场具有重大前景.
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