电催化氨氧化用非贵金属催化剂

IF 9.5 2区 材料科学 Q1 CHEMISTRY, PHYSICAL
Ying Ji, Adnan Ozden, Shuangqiang Chen, Chao Yang and Mingchuan Luo
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引用次数: 0

摘要

氨作为一种高能量密度、无碳的介质出现,用于绿色电力的储存、运输和利用。为了充分发挥其作为可持续能源载体的潜力,开发高效、可扩展且具有成本效益的氨氧化反应(AOR)电催化剂至关重要。这篇综述强调了用地球上丰富的非贵金属替代品取代贵金属催化剂以推动可扩展的AOR应用的迫切需求。我们提出了AOR机制,催化剂设计原则和电解质效应的综合分析,以及反应监测和产品量化的分析框架。除了基本原理之外,我们还探索了非贵金属AOR催化剂在三个关键领域的变革性应用:(1)氨电解用于按需制氢,(2)用于分散发电的直接氨燃料电池,以及(3)电催化废水修复。通过将机理见解与实际工程相结合,本综述确定了未解决的挑战,如缓慢的动力学,催化剂稳定性和系统集成,并提出了非贵金属驱动的氨能源系统的技术路线图。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Non-noble-metal catalysts for electrocatalytic ammonia oxidation

Non-noble-metal catalysts for electrocatalytic ammonia oxidation

Ammonia emerges as a high-energy density, carbon-free medium for the storage, transport, and utilization of green electricity. To unlock its full potential as a sustainable energy carrier, the development of efficient, scalable, and cost-effective electrocatalysts for the ammonia oxidation reaction (AOR) is critical. This review highlights the urgent demand for replacing noble-metal catalysts with earth-abundant, non-noble-metal alternatives to drive scalable AOR applications. We present a comprehensive analysis of AOR mechanisms, catalyst design principles and electrolyte effects, alongside analytical frameworks for reaction monitoring and product quantification. Beyond fundamentals, we also explore transformative applications of non-noble-metal AOR catalysts in three key domains: (1) ammonia electrolysis for on-demand hydrogen production, (2) direct ammonia fuel cells for decentralized power generation, and (3) electrocatalytic wastewater remediation. By bridging mechanistic insights with practical engineering, this review identifies unresolved challenges, such as sluggish kinetics, catalyst stability and system integration, and proposes a technical roadmap toward non-noble-metal driven ammonia energy systems.

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来源期刊
Journal of Materials Chemistry A
Journal of Materials Chemistry A CHEMISTRY, PHYSICAL-ENERGY & FUELS
CiteScore
19.50
自引率
5.00%
发文量
1892
审稿时长
1.5 months
期刊介绍: The Journal of Materials Chemistry A, B & C covers a wide range of high-quality studies in the field of materials chemistry, with each section focusing on specific applications of the materials studied. Journal of Materials Chemistry A emphasizes applications in energy and sustainability, including topics such as artificial photosynthesis, batteries, and fuel cells. Journal of Materials Chemistry B focuses on applications in biology and medicine, while Journal of Materials Chemistry C covers applications in optical, magnetic, and electronic devices. Example topic areas within the scope of Journal of Materials Chemistry A include catalysis, green/sustainable materials, sensors, and water treatment, among others.
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