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在PdM (M=Fe,Co,Ni,Cu) 双甲上优化中间吸附,以促进酸盐电还原到氨的过程

Yuanbo Zhou¹, Lifang Zhang², Zebin Zhu¹

¹Collaborative Innovation Center of Suzhou Nano Science and Technology, College of Chemistry Chemical Engineering and Materials Science, Soochow University, 199 Ren'ai Road, Suzhou, 215123, P. R. China.

Angewandte Chemie (International ed. in English)

|March 7, 2024

概括

使用基于Pd的二甲来优化酸盐到氨 (NO3RR) 的电化学还原. 二甲实现了创纪录的NH3产率,为未来的催化剂设计提供了指导.

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
催化剂是一种催化剂.

背景情况:

用电化学方法将酸盐减少为氨 (NO3RR) 是一种可持续的氨生产方法.
缓慢的动力学和不良的机制理解阻碍了NO3RR催化剂的发展.

研究的目的:

选基于Pd的双金属 (PdM,M=Fe,Co,Ni,Cu) 进行NO3RR.
为NO3RR催化剂建立结构-活性关系.

主要方法:

使用过渡金属剂选基于Pd的双甲催化剂.
在中性电解质中进行电化学性能测试.
关于中间体吸附和激活的机制研究.

主要成果:

超薄的双甲结构增强了活性部位的暴露.
过渡金属补充剂优化电子特性和中间吸附.
PdCu二甲表现出创纪录的NH3产率 (295 mg h-1 mg-1cat) 和90.9%的法拉代效率.
观察到优化了N种吸附,增强了*NO激活,并减少了HER活性.

结论:

基于Pd的双甲为高效的NO3RR提供了一个有希望的途径.
该研究为设计新型NO3RR催化剂提供了系统指导.

关键词:

氨的生产生产氨的生产双金属是一种双金属.电化学酸盐降解电化学酸盐降解金属乙烯是金属的结构活动关系结构活动关系

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