Amorphous electrocatalysts for oxygen and hydrogen evolution reactions: Advances in hydrogen production

IF 7.9 3区 材料科学 Q1 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY
Selvam Mathi , Hanan Akhdar , Ranjan S. Shetti , Tarfah Alinad , Abdullah N. Alodhayb , Kunal Mondal , Nagaraj P. Shetti
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引用次数: 0

Abstract

The electrochemical splitting of water into oxygen and hydrogen is fundamental for renewable energy storage and conversion. The development of cost-effective and highly efficient electrocatalysts remains essential for industrial-scale implementation of this technology. Recent advances have highlighted the superior activity, stability and structural adaptability of amorphous electrocatalysts compared to their crystalline counterparts. This review critically examines synthesis strategies, characterisation techniques, and the electrochemical performance of amorphous materials for both oxygen evolution (OER) and hydrogen evolution (HER) reactions. Key factors influencing catalytic efficiency, including electronic structure and surface chemistry, are discussed in detail and contextualised with established literature. The review also highlights the critical role of enthalpic contributions in governing reaction energetics and catalyst performance, which aids in understanding and optimising electrocatalytic efficiency. Notably, ongoing research continues to reveal that amorphous catalysts consistently deliver improved performance in water-splitting applications, highlighting their growing relevance in electrocatalysis. The rationale for employing amorphous catalysts in water splitting is articulated, emphasising their unique advantages. By integrating recent findings and outlining future research directions, this review underscores the pivotal role of amorphous materials in advancing sustainable hydrogen production and identifies promising avenues for catalyst innovation.

Abstract Image

氧和氢析出反应的非晶电催化剂:制氢的进展
水的电化学分解为氧和氢是可再生能源储存和转换的基础。开发具有成本效益和高效的电催化剂对于该技术的工业规模实施仍然至关重要。近年来,非晶电催化剂的活性、稳定性和结构适应性都优于晶体电催化剂。本文综述了非晶材料在析氧(OER)和析氢(HER)反应中的合成策略、表征技术和电化学性能。影响催化效率的关键因素,包括电子结构和表面化学,被详细讨论,并与已建立的文献背景。综述还强调了焓在控制反应能量学和催化剂性能方面的关键作用,这有助于理解和优化电催化效率。值得注意的是,正在进行的研究继续表明,非晶催化剂在水分解应用中不断提高性能,突出了它们在电催化方面日益增长的相关性。采用无定形催化剂在水分裂的基本原理是明确的,强调其独特的优势。通过整合最近的研究成果和概述未来的研究方向,本综述强调了非晶材料在推进可持续制氢方面的关键作用,并确定了催化剂创新的有希望的途径。
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
CiteScore
5.80
自引率
6.40%
发文量
174
审稿时长
32 days
期刊介绍: Materials Today Sustainability is a multi-disciplinary journal covering all aspects of sustainability through materials science. With a rapidly increasing population with growing demands, materials science has emerged as a critical discipline toward protecting of the environment and ensuring the long term survival of future generations.
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