This work uses green sustainable reactions twice. Firstly, it is microwave synthesis: 2,4,6‐tribiphenyl‐4‐yl‐1,3,5‐triazine and similar compounds were prepared in a closed microwave reactor in n‐octane by the Friedel‐Crafts reaction. Second, a hybrid electrocatalyst for the highly demanded electrochemical reaction of nitrate reduction to ammonia (NO3RR) was prepared based on this material. This reaction has great potential to replace the energy‐intensive Haber‐Bosch process, and in addition, has independent value for the elimination of nitrate contamination of water resources. As shown in the work, microwave synthesis is an eco‐friendly method for the synthesis of complex organic compounds; fast, selective and with a high yield of the target product. The electrocatalyst deposited on the graphite electrode consisted of a layer of 2,4,6‐tribiphenyl‐4‐yl‐1,3,5‐triazine and related compounds coated with cobalt oxide. The hybrid catalyst was firmly retained on the graphite electrode during NO3RR and the material showed impressive stability with almost no decrease in catalytic activity even after the fifth cycle. Both 2,4,6‐tribiphenyl‐4‐yl‐1,3,5‐triazine and the catalyst based on this substance were characterized by SEM, XPS, XRD, UV‐vis spectra, cyclic (and linear) voltammetry, and chronoamperometry. This work can serve as a starting point for the development of stable and durable electrocatalysts for NO3RR using triazine derivatives.

中文翻译：

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三嗪衍生物的绿色合成及其在良性电催化硝酸盐还原制氨反应中的应用


这项工作两次使用了绿色可持续反应。首先是微波合成：在密闭微波反应器中，在正辛烷中通过傅克反应制备2,4,6-三联苯-4-基-1,3,5-三嗪和类似化合物。其次，基于该材料制备了一种混合电催化剂，用于高要求的硝酸盐还原成氨（NO3RR）电化学反应。该反应具有替代能源密集型哈伯-博世工艺的巨大潜力，此外，对于消除水资源的硝酸盐污染也具有独立的价值。正如该工作所示，微波合成是一种合成复杂有机化合物的环保方法；快速、选择性强且目标产物收率高。沉积在石墨电极上的电催化剂由一层 2,4,6-三联苯-4-基-1,3,5-三嗪和涂有氧化钴的相关化合物组成。在 NO3RR 过程中，混合催化剂牢固地保留在石墨电极上，并且该材料表现出令人印象深刻的稳定性，即使在第五次循环后催化活性也几乎没有下降。 2,4,6-三联苯-4-基-1,3,5-三嗪和基于该物质的催化剂均通过SEM、XPS、XRD、紫外-可见光谱、循环（和线性）伏安法和计时电流法进行了表征。这项工作可以作为使用三嗪衍生物开发稳定耐用的 NO3RR 电催化剂的起点。