Restoring the Nitrogen Cycle by Electrochemical Reduction of Nitrate: Progress and Prospects,Small Methods

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Restoring the Nitrogen Cycle by Electrochemical Reduction of Nitrate: Progress and Prospects
Small Methods ( IF 10.7 ) Pub Date : 2020-09-29 , DOI: 10.1002/smtd.202000672
Yachao Zeng ₁ , Cameron Priest ₁ , Guofeng Wang ₂ , Gang Wu ₁

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The increasing amount of anthropogenic nitrogen has resulted in alarming levels of nitrate in bodies of water and caused a cascade of damage to the environment and human health. Electrochemical nitrate reduction is an efficient strategy ancillary to biological nitrogen cycle management, which utilizes electrons as green reductants and rebalances the N₂ cycle. In this review, the fundamental principles and implementation of electrochemical nitrate reduction are described to lay the foundation for the eventual large‐scale application in the remediation of nitrate‐laden wastewaters. Factors that influence the activity and selectivity of electrochemical nitrate reduction are also discussed. Moreover, electrolytic cell design and construction are discussed via a rational choice of critical components and assembly. Finally, a roadmap for the development of highly selective nitrate reduction catalysts is proposed. This review attempts to provide a practical strategy for electrochemical nitrogen cycle management and aims to stimulate future research for final implementation.

中文翻译：

电化学还原硝酸盐恢复氮循环的研究进展与展望

人为氮的含量不断增加，导致水体中硝酸盐的含量达到惊人水平，对环境和人类健康造成了一系列危害。硝酸盐电化学还原是生物氮循环管理的一种有效策略，该方法利用电子作为绿色还原剂并重新平衡N ₂周期。在这篇综述中，描述了电化学还原硝酸盐的基本原理和实施方法，为最终大规模应用在修复含硝酸盐废水中奠定了基础。还讨论了影响电化学硝酸盐还原的活性和选择性的因素。此外，通过合理选择关键部件和组件来讨论电解池的设计和构造。最后，提出了开发高选择性硝酸盐还原催化剂的路线图。这篇综述试图为电化学氮循环管理提供一种实用的策略，并旨在刺激未来的研究以最终实现。

更新日期：2020-12-03

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