The effect of nitro group on the electrocatalytic hydrogen evolution of triaryl corrole tin (IV) complex

IF 2.7 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Inorganica Chimica Acta Pub Date : 2025-05-08 DOI:10.1016/j.ica.2025.122749

Gang Xu , Jie Zeng , Jia-Le Tao , Yan-Fang Yao , Hao Zhang , Li-Ping Si , Xin-Yan Xiao , Hai-Yang Liu

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引用次数: 0

Abstract

Finding inexpensive and easily available non-noble metal-based catalysts for electrocatalytic hydrogen evolution reaction (HER) is particularly important for energy conservation, emission reduction and environmental protection. In this paper, three novel tin (IV) 5,15-(bis-pentafluorophenyl)-10-(nitrophenyl) corroles (1, 2, 3) were synthesized, featuring o-, m-, and p-nitro groups at the 10-phenyl position. The electrocatalytic hydrogen evolution reactions (HER) of these complexes in organic and neutral aqueous systems were systematically investigated. Notably, all three complexes demonstrate significant catalytic activity for hydrogen evolution in both systems, and their catalytic performance follows the order 1 > 3 > 2, which indicates that the electron-withdrawing effect of nitro group can significantly affect the catalytic property of tin complex. In the organic phase with TsOH or TFA as proton source, the electrocatalytic HER was found to undergo an “E-ECEC” pathway (E: electron transfer; C: chemical reaction). Furthermore, in the aqueous buffer solution, the TOF value is 92.39 h⁻¹ at an overpotential of 1038 mV.

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硝基对三芳基铬锡配合物电催化析氢的影响

寻找价格低廉、易得的非贵金属基催化剂用于电催化析氢反应（HER）对节能、减排和环境保护尤为重要。本文合成了三种新型的锡（IV） 5,15-（双五氟苯基）-10-（硝基苯基）对应物（1,2,3），它们在10-苯基位置上具有o-、m-和对硝基。系统地研究了这些配合物在有机和中性水体系中的电催化析氢反应。值得注意的是，这三种配合物在两种体系中都表现出显著的析氢催化活性，其催化性能遵循1 >；3比;2，这表明硝基的吸电子效应可以显著影响锡配合物的催化性能。在以TsOH或TFA为质子源的有机相中，电催化HER经历了“E- ecec”途径(E：电子转移；C：化学反应)。此外，在缓冲水溶液中，过电位为1038 mV时，TOF值为92.39 h−1。

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来源期刊

Inorganica Chimica Acta 化学-无机化学与核化学

CiteScore

6.00

自引率

3.60%

发文量

440

审稿时长

35 days

期刊介绍： Inorganica Chimica Acta is an established international forum for all aspects of advanced Inorganic Chemistry. Original papers of high scientific level and interest are published in the form of Articles and Reviews. Topics covered include: • chemistry of the main group elements and the d- and f-block metals, including the synthesis, characterization and reactivity of coordination, organometallic, biomimetic, supramolecular coordination compounds, including associated computational studies; • synthesis, physico-chemical properties, applications of molecule-based nano-scaled clusters and nanomaterials designed using the principles of coordination chemistry, as well as coordination polymers (CPs), metal-organic frameworks (MOFs), metal-organic polyhedra (MPOs); • reaction mechanisms and physico-chemical investigations computational studies of metalloenzymes and their models; • applications of inorganic compounds, metallodrugs and molecule-based materials. Papers composed primarily of structural reports will typically not be considered for publication.