Ferrocene Units Substitution in Nickel(II) Porphyrin(2.1.2.1) Induce Extremely Low Oxygen Evolution Reaction Overpotential

IF 3.5 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Dalton Transactions Pub Date : 2025-04-14 DOI:10.1039/d5dt00580a

Tao Jiang, Yiping Hu, Sihan Liang, Fengxian Qiu, Hongliang Huang, Mingbo Zhou, Songlin Xue

引用次数: 0

Abstract

This study reports the synthesis, characterization, structure and The oxygen evolution reaction (OER) performance of ferrocene-substituted nickel(II) porphyrin(2.1.2.1) complexes. The Ni-3 complex, functionalized with two ferrocene units, demonstrates exceptional OER activity, achieving an overpotential of 280 mV at 10 mA cm-2 in alkaline media. This enhancement is ascribed to the electron-rich ferrocene moieties, which act as efficient electron-transfer mediators during catalysis. DFT calculations corroborate these findings, revealing a theoretical overpotential of 0.79 eV for the dual-ferrocene-substituted catalyst. These results underscore the critical role of ferrocene in lowering the overpotential of molecular OER catalysts.

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二茂铁取代镍（II）卟啉（2.1.2.1）诱导极低析氧反应过电位

本研究报道了二茂铁取代的镍（II）卟啉（2.1.2.1）配合物的合成、表征、结构及析氧反应（OER）性能。用两个二茂铁单元功能化的Ni-3配合物表现出优异的OER活性，在碱性介质中在10 mA cm-2下达到280 mV的过电位。这种增强归因于富含电子的二茂铁基团，它们在催化过程中充当有效的电子转移介质。DFT计算证实了这些发现，揭示了双二茂铁取代催化剂的理论过电位为0.79 eV。这些结果强调了二茂铁在降低分子OER催化剂过电位中的关键作用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Dalton Transactions 化学-无机化学与核化学

CiteScore

6.60

自引率

7.50%

发文量

1832

审稿时长

1.5 months

期刊介绍： Dalton Transactions is a journal for all areas of inorganic chemistry, which encompasses the organometallic, bioinorganic and materials chemistry of the elements, with applications including synthesis, catalysis, energy conversion/storage, electrical devices and medicine. Dalton Transactions welcomes high-quality, original submissions in all of these areas and more, where the advancement of knowledge in inorganic chemistry is significant.