Sustainable Hydrogen Production with Synergistic Electron Transfer Enhancement in Nickel-Based Alkaline HER Electrocatalyst Empowered by Graphene Oxide

IF 5.5 3区材料科学 Q1 ELECTROCHEMISTRY

Electrochimica Acta Pub Date : 2024-10-16 DOI:10.1016/j.electacta.2024.145230

Nasrin Banu G, Neppolian Bernaurdshaw

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引用次数: 0

Abstract

The hydrogen evolution reaction (HER) plays a crucial role in driving forward the transition to a hydrogen-based economy by providing a means to generate pure hydrogen. However, the efficient and cost-effective production of hydrogen via HER faces significant challenges, particularly at the cathode. To address these challenges, we produced a hybrid material – 2D graphene oxide (GO) sheets coated onto nickel sulfide (NiS) microspheres anchored on Ni Foam (GO@NiS/Ni Foam) using a straightforward synthesis technique. Our research highlights the significant influence of the interaction between GO and NiS on the performance of HER, attributed to the enhancement of electron transport at the interface. Furthermore, the GO@NiS/Ni Foam composite exhibits remarkable durability over extended periods, maintaining its superior functionality for up to 40 hours of continuous operation. This underscores its potential for practical implementation in efficient water-splitting processes, offering a promising solution to the challenges hindering widespread adoption of hydrogen technology.

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石墨烯氧化物助力镍基碱性 HER 电催化剂协同增强电子传递，实现可持续制氢

氢进化反应（HER）提供了一种生成纯氢的方法，在推动向氢基经济过渡方面发挥着至关重要的作用。然而，通过氢进化反应高效、经济地生产氢气面临着重大挑战，尤其是在阴极。为了应对这些挑战，我们采用直接合成技术制备了一种混合材料--涂覆在锚定在镍泡沫上的硫化镍（NiS）微球上的二维氧化石墨烯（GO）薄片（GO@NiS/Ni Foam）。我们的研究强调了 GO 和 NiS 之间的相互作用对 HER 性能的重要影响，这归因于界面上电子传输的增强。此外，GO@NiS/镍泡沫复合材料在长时间内表现出了卓越的耐久性，可在连续运行长达 40 小时的情况下保持其卓越的功能。这凸显了它在高效水分离过程中的实际应用潜力，为解决阻碍氢能技术广泛应用的难题提供了一个前景广阔的解决方案。

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

Electrochimica Acta 工程技术-电化学

CiteScore

11.30

自引率

6.10%

发文量

1634

审稿时长

41 days

期刊介绍： Electrochimica Acta is an international journal. It is intended for the publication of both original work and reviews in the field of electrochemistry. Electrochemistry should be interpreted to mean any of the research fields covered by the Divisions of the International Society of Electrochemistry listed below, as well as emerging scientific domains covered by ISE New Topics Committee.