Overcoming Chemical Inertness under Ambient Conditions: A Critical View on Recent Developments in Ammonia Synthesis via Electrochemical N2 Reduction by Asking Five Questions,ChemElectroChem

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Overcoming Chemical Inertness under Ambient Conditions: A Critical View on Recent Developments in Ammonia Synthesis via Electrochemical N2 Reduction by Asking Five Questions
ChemElectroChem ( IF 3.5 ) Pub Date : 2020-01-31 , DOI: 10.1002/celc.201901970
Qing Qin ₁ , Martin Oschatz _{1,

2}

Affiliation

Ammonia (NH₃) synthesis by the electrochemical N₂ reduction reaction (NRR) is increasingly studied and proposed as an alternative process to overcome the disadvantages of Haber‐Bosch synthesis by a more energy‐efficient, carbon‐free, delocalized, and sustainable process. An ever‐increasing number of scientists are working on the improvement of the faradaic efficiency (FE) and NH₃ production rate by developing novel catalysts, electrolyte concepts, and/or by contributing theoretical studies. The present Minireview provides a critical view on the interplay of different crucial aspects in NRR from the electrolyte, over the mechanism of catalytic activation of N₂, to the full electrochemical cell. Five critical questions are asked, discussed, and answered, each coupled with a summary of recent developments in the respective field. This article is not supposed to be a complete summary of recent research about NRR but provides a rather critical personal view on the field. It is the major aim to give an overview over crucial influences on different length scales to shine light on the sweet spots into which room for revolutionary instead of incremental improvements may exist.

中文翻译：

在环境条件下克服化学惰性：提出五个问题，对通过电化学还原N2合成氨的最新进展的批判性观点

越来越多地研究和提出通过电化学N ₂还原反应（NRR）合成氨（NH ₃）作为一种替代方法，以通过更节能，无碳，离域化和可持续的方法来克服Haber-Bosch合成的缺点。通过开发新颖的催化剂，电解质概念和/或通过进行理论研究，越来越多的科学家致力于提高法拉第效率（FE）和NH ₃生产率。本Minireview提供的不同的重要方面在NRR从电解质的相互作用的关键视图，经N个催化活化的机制₂到完整的电化学电池。提出，讨论和回答了五个关键问题，每个问题都总结了各自领域的最新发展。本文不应该是有关NRR的最新研究的完整摘要，但可以提供有关该领域的相当关键的个人观点。其主要目的是概述不同长度刻度上的关键影响，以便在可能存在革命性空间而不是渐进式改进的最佳位置发光。

更新日期：2020-01-31

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