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价值化学品的工业级配对电合成,使用高性能异构结构电极进行

Guorong Zhou¹, Han Cheng², Yilin Wu¹

¹School of Chemistry and Chemical Engineering, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, 310018, Zhejiang, China.

Angewandte Chemie (International ed. in English)

|February 2, 2025

概括

这项研究开发了一种用于配对电合成的无形Co2P@MoOx异构催化剂. 它有效地从工业规模的酸盐和甘油中共同生产氨和酸盐,具有高稳定性.

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:

配对电合成使有价值化学品的联合生产成为可能.
开发高效的双功能电催化剂以实现工业级性能仍然是一个重大挑战.
同时电催化需要能够同时促进多个反应的催化剂.

研究的目的:

设计和合成一种高效的双功能电催化剂,用于配对的电合成.
为了研究电催化酸盐还原反应 (NO2RR) 和糖氧化反应 (GOR) 的催化性能.
为了实现工业级生产氨 (NH3) 和酸盐.

主要方法:

在现场电沉积策略中,创建一个无形的Co2P@MoOx异构结构.
使用膜电极组件 (MEA) 电解器进行配对电合成.
使用现场光谱和理论计算来阐明反应机制和催化剂特性.

主要成果:

Co2P@MoOx异构表现出了对NO2RR和GOR的优异的双功能催化活性.
实现了低工作电压 (1.30V) 和强大的稳定性 (>200小时在100 mA cm-2).
高法拉第效率 (>95%) 和NH3 (49.7毫克小时-1厘米-2) 和形式 (304.4毫克小时-1厘米-2) 的产量在500 mA cm-2.2.

结论:

无形的Co2P@MoOx异构结构是对联电合成的高效双功能催化剂.
高价值CoOOH和*NH2OH中间体分别是GOR和NO2RR的关键.
强大的电子接口相互作用和异构结构中优化的能量屏障有助于其高活性.

关键词:

无形异构结构的异构结构.在 Co2P@MoOx 中使用.葡萄糖的氧化反应反应亚酸盐的还原反应反应配对电合成的配对电合成

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