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高性能FeP催化剂用于电化学氨生产和回收通过焦勒剥离

Yuan-Zi Xu¹, Robin N Dürr², Florian Häfliger²

¹ETH Zürich: Eidgenossische Technische Hochschule Zurich, Department of Chemistry and Applied Biosciences, SWITZERLAND.

Angewandte Chemie (International ed. in English)

|May 12, 2025

概括

这项研究引入了一种新的铁化物催化剂,用于高效的电化学酸盐降解为氨. 综合的朱尔剥离方法简化了氨的回收,使可持续的分散生产成为可能.

科学领域:

电化学电化学电化学
材料科学材料科学材料科学
环境科学环境科学

背景情况:

电化学降低酸盐 (NO3RR) 是生产氨和减轻污染的可持续途径.
挑战包括为基本条件开发稳定的催化剂以及从稀释溶液中有效回收氨.

研究的目的:

开发一种高活性,稳定的NO3RR电催化剂.
实施一项创新的氨回收战略.
展示一个可扩展和节能的酸盐减少系统.

主要方法:

在泡 (NF) 上制造部分氧化无形铁化物 (POA-FeP) 电催化剂.
在中性和性介质中对NO3RR的POA-FeP/NF催化剂进行电化学测试.
使用朱尔加热通过挥发 (朱尔剥离) 在现场回收氨.

主要成果:

POA-FeP/NF催化剂实现了高部分电流密度 (中性 - 720 mA cm−2,性介质 - 932 mA cm−2) 的近量法拉第效率.
催化剂表现出极好的稳定性,在 -300 mA cm-2.2 的情况下,在 1000 多小时内保持 >90% FE.
氨被回收为化氨与>95%的收益率使用朱尔剥离方法.

结论:

POA-FeP电催化剂为NO3RR提供了高活性,选择性和稳定性.
综合的朱尔剥离方法为氨回收提供了一种高效和简化的方法.
这项工作为从酸盐进行可扩展,分散和节能生产氨提供了一个有希望的途径.

关键词:

铁化物铁化物焦力加热焦力加热焦力剥离 (Joule Stripping) 是一个方法.减少酸盐的使用电化学电化学电化学

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