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超稳定的烯酸结合共价有机框架的自聚凝流合成用于电催化

Jiaxi Wang¹, Qianqian Zhu^1,2, Jixian Wang¹

¹Key Laboratory of Advanced Energy Material Chemistry, Ministry of Education), College of Chemistry, Nankai University, 300071, Tianjin, China.

Angewandte Chemie (International ed. in English)

|October 4, 2024

概括

我们开发了一种用于支持纳米粒子的共价有机框架 (COF) 的新合成方法,用于电催化降低. 这些稳定,疏水的COF实现了高氨产量,优于现有的材料.

科学领域:

材料科学材料科学材料科学
催化剂是一种催化剂.
电化学电化学电化学

背景情况:

为高贵金属催化剂开发高效的支对于先进的化学反应至关重要.
贵金属催化剂对于各种电化学应用至关重要,包括减少.

研究的目的:

为支持纳米粒子创建新的共价有机框架 (COF) 平台.
通过使用功能化的COF来增强电催化降解反应 (ENRR) 的性能.

主要方法:

采用自聚凝聚流体合成策略来产生与烯相关的COF.
"二合一"单体与和甲基组被设计用于COF合成.
功能化用于增强疏水性和调整催化活性.

主要成果:

合成了具有高度结晶性和多孔性的COF,具有方形孔隙和出色的化学稳定性.
功能化COF通过抑制进化反应 (HER) 证明了通过抑制进化反应 (HER) 来提高ENRR性能.
带有 Pd 的 COF 实现了高的 NH3 生产产量 (90.0±2.6 μg·h−1·mg−1cat.) 和44%的Faradaic效率在-0.2V与RHE相比.

结论:

开发的合成策略为烯相关的COFs提供了一条新的途径.
功能化COF在电催化降解方面表现出卓越的性能.
这项工作为设计高效的ENRR催化剂提供了一个有前途的途径,具有良好的可回收性.

关键词:

在 ENRR 中, ENRR 在 ENRR 中, ENRR 中.流量合成的流量合成.烯相关的共价有机框架.自体聚凝固的自聚凝固

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