Green Chemistry: Advanced Electrocatalysts and System Design for Ammonia Oxidation,Small Structures

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Green Chemistry: Advanced Electrocatalysts and System Design for Ammonia Oxidation
Small Structures ( IF 13.9 ) Pub Date : 2023-01-26 , DOI: 10.1002/sstr.202200266
Yunrui Tian ₁ , Zixian Mao ₁ , Liqun Wang ₂ , Ji Liang ₁

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The hazards associated with handling hydrogen fuels have driven people to consider alternative clean and sustainable fuel types. Ammonia shows significant potential for this task as both a direct fuel and hydrogen carrier due to its unique features of facile transportation and low cost. Regarding this, electrochemical ammonia oxidation reaction (AOR) is the essential process for utilizing ammonia for energy applications, either for hydrogen production via ammonia splitting or energy generation via direct ammonia fuel cells, which is highly commercially promising. On this basis, the development of high-performance and economic electrocatalysts for AOR is critical. In this review, the kinetics and mechanism of ammonia electrooxidation are first discussed to provide a foundation to understand the current issues associated with this technology, and then a comprehensive presentation on the different types of electrocatalysts for AOR is illustrated. Afterward, an outlook is presented and the possible research directions for AOR electrocatalysis are proposed, which is expected to shed light on the future development of this promising technology.

中文翻译：

绿色化学：用于氨氧化的先进电催化剂和系统设计

与处理氢燃料相关的危害促使人们考虑替代清洁和可持续的燃料类型。由于其运输方便和成本低的独特特点，氨作为直接燃料和氢载体在这项任务中显示出巨大的潜力。就此而言，电化学氨氧化反应 (AOR) 是将氨用于能源应用的基本过程，无论是通过氨分解产生氢气还是通过直接氨燃料电池产生能量，这在商业上都非常有前途。在此基础上，开发高性能、经济的AOR电催化剂至关重要。在这篇综述中，首先讨论了氨电氧化的动力学和机理，为了解与该技术相关的当前问题提供了基础，然后对不同类型的 AOR 电催化剂进行了全面介绍。之后，提出了展望并提出了 AOR 电催化可能的研究方向，以期阐明这项有前途的技术的未来发展。

更新日期：2023-01-26

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