具有推挽性质的电聚合- a2b型co（III）中二硫代-2-酰基衍生物的电催化水裂解性能的调节

IF 4.1 3区化学 Q1 CHEMISTRY, ANALYTICAL

Journal of Electroanalytical Chemistry Pub Date : 2025-05-01 DOI:10.1016/j.jelechem.2025.119157

Yunlong Pan , Xiaohong Zhang , Xifeng Zhang , Weihua Zhu , John Mack , Tebello Nyokong , Xu Liang

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引用次数: 0

摘要

合成了一系列4个A2B型co（III）介甲基二硫代-2-基对应物3a-d，由于介甲基芳基环在B位引入的给电子(D)和/或吸电子(A)基团的性质而具有不同的推拉性质。通过经济、简便的电聚合，将介孔噻吩-2-基环与桥接二噻吩基团形成聚合物（聚3a-d），在B位具有供电子或吸电子介孔芳基的聚3b-d在酸性、碱性和模拟海水水介质中表现出显著增强、可调和稳定的电催化裂解水性能。Poly-3c具有对硝基苯基环在B位和推挽式“D-A”结构，由于增强了π-扩展共轭体系的内部电荷转移，对阴极和阳极的析氢和析氧反应表现出最有利的电催化性能

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Modulation of the electrocatalyzed water-splitting properties of electropolymerized-A2B type co(III) meso-dithien-2-ylcorroles with push-pull properties

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Modulation of the electrocatalyzed water-splitting properties of electropolymerized-A2B type co(III) meso-dithien-2-ylcorroles with push-pull properties

A series of four A₂B type co(III) meso-dithien-2-ylcorroles 3a-d with differing push-pull properties due to the electron-donating (D) and/or electron-withdrawing (a) moieties properties of the meso-aryl rings introduced at the B position were synthesized and characterized. Upon the economical and facile electropolymerization of the meso-thien-2-yl rings to form polymers with bridging dithiophene moieties (poly-3a-d), poly-3b-d with electron-donating or -withdrawing meso-aryl groups at the B position exhibited significantly enhanced, tunable and stable electrocatalyzed water-splitting performances in acidic, alkaline and simulated seawater aqueous media. Poly-3c, with a p-nitrophenyl ring at the B position and a push-pull “D-A" structure, exhibits the most favorable electrocatalytic performances for the hydrogen and oxygen evolution reactions at the cathode and anode due to an enhancement of internal charge transfer across the π-extended conjugation system

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来源期刊

Journal of Electroanalytical Chemistry 化学-电化学

CiteScore

7.80

自引率

6.70%

发文量

912

审稿时长

2.4 months

期刊介绍： The Journal of Electroanalytical Chemistry is the foremost international journal devoted to the interdisciplinary subject of electrochemistry in all its aspects, theoretical as well as applied. Electrochemistry is a wide ranging area that is in a state of continuous evolution. Rather than compiling a long list of topics covered by the Journal, the editors would like to draw particular attention to the key issues of novelty, topicality and quality. Papers should present new and interesting electrochemical science in a way that is accessible to the reader. The presentation and discussion should be at a level that is consistent with the international status of the Journal. Reports describing the application of well-established techniques to problems that are essentially technical will not be accepted. Similarly, papers that report observations but fail to provide adequate interpretation will be rejected by the Editors. Papers dealing with technical electrochemistry should be submitted to other specialist journals unless the authors can show that their work provides substantially new insights into electrochemical processes.