电催化剂的自发反应使电化学硝酸盐还原过程中的 NH3 法拉第效率超过 100

IF 24.4 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Advanced Energy Materials Pub Date : 2024-06-28 DOI:10.1002/aenm.202401591

Wanqiang Yu, Lili Chen, Hua Tan, Man Huang, Jiayuan Yu, Yujie Wang, Jingang Wang, Hong Liu, Weijia Zhou

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引用次数: 0

摘要

氨正在成为未来全球关注的液化可再生能源载体。硝酸盐的电化学还原法被广泛认为是传统哈伯-博施合成氨生产工艺的替代方法。然而，据观察，某些催化剂会在一定程度上与硝酸盐发生自发的氧化还原反应，导致计算得出的氨法效率超过 100%。然而，目前缺乏准确的实验验证和有效的解决方案。针对这些问题，本文验证了催化剂与硝酸盐之间的自发反应对电催化硝酸盐还原性能计算的影响。同时，针对自发反应造成的干扰，提出了更新和优化的实验策略。这项工作将为更加准确可靠的电催化硝酸盐还原研究做出重要贡献。

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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Spontaneous Reaction of Electrocatalyst Resulted in a NH3 Faraday Efficiency of More than 100% in Electrochemical Nitrate Reduction

Ammonia is emerging as a liquefied and renewable‐energy carrier of global interest in the future. The electrochemical reduction of nitrate is widely acknowledged as an alternative to the traditional Haber–Bosch process for ammonia production. However, it is observed that certain catalysts can undergo spontaneous oxidation–reduction reactions with nitrate to some extent, leading to the calculated ammonia Faradaic efficiency exceeding 100%. However, there is a lack of accurate experimental validation as well as effective solutions. To address these problems, it is verified that the spontaneous reaction between the catalyst and nitrate impacts on the calculation of electrocatalytic nitrate reduction performance. Meanwhile, an updated and optimized experimental strategy is proposed to address the interference caused by the spontaneous reaction. This work will significantly contribute to more accurate and reliable electrocatalytic nitrate reduction research.

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来源期刊

Advanced Energy Materials CHEMISTRY, PHYSICAL-ENERGY & FUELS

CiteScore

41.90

自引率

4.00%

发文量

889

审稿时长

1.4 months

期刊介绍： Established in 2011, Advanced Energy Materials is an international, interdisciplinary, English-language journal that focuses on materials used in energy harvesting, conversion, and storage. It is regarded as a top-quality journal alongside Advanced Materials, Advanced Functional Materials, and Small. With a 2022 Impact Factor of 27.8, Advanced Energy Materials is considered a prime source for the best energy-related research. The journal covers a wide range of topics in energy-related research, including organic and inorganic photovoltaics, batteries and supercapacitors, fuel cells, hydrogen generation and storage, thermoelectrics, water splitting and photocatalysis, solar fuels and thermosolar power, magnetocalorics, and piezoelectronics. The readership of Advanced Energy Materials includes materials scientists, chemists, physicists, and engineers in both academia and industry. The journal is indexed in various databases and collections, such as Advanced Technologies & Aerospace Database, FIZ Karlsruhe, INSPEC (IET), Science Citation Index Expanded, Technology Collection, and Web of Science, among others.