The Cover Feature represents an old fashioned record player with the rotating ring disk used to detect ammonia at a platinum ring electrode, achievable during a cyclic voltammetry only at the NH₃ oxidation potential. In their Full Paper, M. Ferrara et al. explain that a Rotating Ring Disk Electrode (RRDE) setup can be used to qualitatively determine in‐situ if an electrocatalyst is active toward the Nitrogen Reduction Reaction (NRR) in alkaline environments, thanks to the high sensibility of the platinum ring electrode. The results show that, through different electrochemical measurements, it is possible to study the stability of the catalyst itself, and to detect possible subproducts of the nitrogen reduction reaction, such as N₂H₄. More information can be found in the Full Paper by M. Ferrara et al.

中文翻译：

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封面功能：在碱性环境中使用旋转圆盘电极（RRDE）分析快速筛选氮还原反应（NRR）电催化活性的方法（ChemCatChem 24/2020）

Cover Feature代表一种老式的电唱机，带有旋转的环形盘，用于在铂制环形电极上检测氨，仅在NH ₃氧化电势的循环伏安法中才能实现。在他们的论文全文中，费拉拉（M. Ferrara）等人。解释说，由于铂环电极的高灵敏度，旋转环盘电极（RRDE）装置可用于定性确定电催化剂是否在碱性环境中对氮还原反应（NRR）具有活性。结果表明，通过不同的电化学测量，可以研究催化剂本身的稳定性，并检测氮还原反应的可能副产物，例如N ₂ H _4。。可以在M. Ferrara等人的论文全文中找到更多信息。