含咪唑基团的过渡金属（铁、钴和铜）-硼醛配合物的电催化氢气进化

IF 3.8 3区化学 Q2 CHEMISTRY, PHYSICAL

Catalysts Pub Date : 2023-12-19 DOI:10.3390/catal14010005

Ling-Wei Wu, Yan-Fang Yao, Shi-Yin Xu, Xu-You Cao, Yan-Wei Ren, Li-Ping Si, Hai Liu

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引用次数: 0

摘要

研究非贵金属过渡金属的氢进化反应（HER）对氢能生产具有重要意义。本研究合成了一种新的 5,15-双（五氟苯基）-10-[4-（1H-咪唑）苯基]-科罗及其金属配合物（金属 = Co、Cu、Fe），并将其用于 DMF 有机溶剂和水介质中的电催化氢进化反应。所制备的钴珊瑚在两种介质中均表现出最佳催化性能。在 DMF 溶剂中使用 TsOH 作为质子源时，其翻转频率（TOF）和催化效率（C.E）分别达到 265 s-1 和 1.04。在水介质中，其 TOF 也可达到 405 h-1。根据质子源的酸度和浓度，这些催化剂的催化 HER 可通过 EECEC 或 ECEC（E：电子转移，C：化学步骤）途径进行。本研究成功证明，介苯基咪唑可提高过渡金属腐蚀物的电催化 HER 活性。

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Electrocatalytic Hydrogen Evolution of Transition Metal (Fe, Co and Cu)–Corrole Complexes Bearing an Imidazole Group

The study of the hydrogen evolution reaction (HER) by non-noble transition metals is of great significance for the production of hydrogen energy. In this work, a new 5,15-bis-(pentafluorophenyl)-10-[4-(1H-imidazole) phenyl]-corrole and its metal complexes (metal = Co, Cu, Fe) were synthesized and used for electrocatalyzed HER in DMF organic solvent and aqueous media. The prepared cobalt corrole showed the best catalytic performance in both media. Its turnover frequency (TOF) and catalytic efficiency (C.E) could reach 265 s−1 and 1.04 when TsOH was used as the proton source in a DMF solvent. In aqueous media, its TOF could also reach 405 h−1. The catalytic HER may go through an EECEC or ECEC (E: electron transfer, C: chemical step) pathway for these catalysts, depending on the acidity and concentration of the proton source. The present work successfully demonstrates that imidazole at a meso-phenyl group may improve the electrocatalytic HER activity of transition metal corroles.

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来源期刊

Catalysts CHEMISTRY, PHYSICAL-

CiteScore

6.80

自引率

7.70%

发文量

1330

审稿时长

3 months

期刊介绍： Catalysts (ISSN 2073-4344) is an international open access journal of catalysts and catalyzed reactions. Catalysts publishes reviews, regular research papers (articles) and short communications. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. Therefore, there is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced.