这项工作两次使用绿色可持续反应。首先,它是微波合成:2,4,6-三联苯-4-基-1,3,5-三嗪和类似化合物在封闭的微波反应器中在正辛烷中通过Friedel-Crafts反应制备。第二,基于该材料制备了用于硝酸盐还原为氨(NO3RR)的高需求电化学反应的混合电催化剂。该反应具有巨大的潜力,可以替代能源密集型的Haber-Bosch工艺,此外,对于消除水资源的硝酸盐污染具有独立的价值。如作品所示,微波合成是合成复杂有机化合物的一种环保方法;快速,选择性和高收率的目标产品。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。混合催化剂在NO3RR过程中牢固地保留在石墨电极上,该材料显示出令人印象深刻的稳定性,即使在第五次循环之后,催化活性也几乎没有降低。通过SEM对2,4,6-三联苯-4-基-1,3,5-三嗪和基于该物质的催化剂进行了表征,XPS,XRD,紫外-可见光谱,循环(和线性)伏安法,和计时电流法.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。
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.