具有稳定流体场的二维Cu板,用于将高速酸盐电还原为氨和高效的酸盐电池
Limin Zhou1, Xueqiu Chen1, Shaojun Zhu1
1Zhejiang Province Key Lab of Leather Engineering, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang, 325000, China.
Angewandte Chemie (International ed. in English)
|February 17, 2024
概括
这项研究通过使用二维铜催化剂和稳定的流体场,增强了酸盐电还原到氨 (eNO3-RR) 的性能. 这种方法可以实现工业应用的高氨选择性和耐久性.
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
- 化学工程是化学工程的重要组成部分.
背景情况:
- 酸盐电还原为氨 (eNO3-RR) 是一个关键的利用策略.
- 工业规模的eNO3-RR在选择性和耐用性方面面临挑战.
研究的目的:
- 通过使用新的电催化剂设计和流体动力学,显著提高eNO3-RR性能.
- 为了实现高氨的选择性,效率和长期稳定性.
主要方法:
- 使用二维 (2D) 铜板作为电催化剂.
- 消除载体气体以建立一个稳定的流体场.
- 采用了COMSOL多物理模拟和现场红外光谱学.
主要成果:
- 实现了99%的氨法拉代效率 (FE) 和3.14 mmol cm-2 h-1的创纪录收益率.
- 在200 mA cm-2.2下,经过长期电解稳定性120小时.
- 将战略扩展到一个采用85.4%氨FE的酸电池系统.
结论:
- 2D Cu板和一个稳定的流体场显著增强eNO3-RR.
- 稳定的流体场对于催化剂表面再生和高效氨生产至关重要.
- 这一战略为工业氨合成和能源储存提供了一个有前途的途径.
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