Wang Rongkang, Lu Jingyu, Li Xu, Song Chunyu
Chongqing Chemical Industry Vocational College Chongqing 401228 China
School of Materials Science and Engineering, China University of Petroleum (East China) Qingdao 266580 China.
Nanoscale Adv. 2024 Jul 1;6(16):4071-4074. doi: 10.1039/d4na00281d. eCollection 2024 Aug 6.
Electrochemically synthesizing NH N is a facile and sustainable approach that involves multistep electron and proton transfer processes. Thus, consecutive electron and proton transfer is necessary. Here, a universal method with the assistance of magnetic stirring that can assemble Fe, Co, and Ni nanoparticles into nanochains is developed. Notably, the Fe nanochain, composed of amorphous Fe nanoparticles, facilitates electron and proton transfer, resulting in an enhanced NH yield (92.42 μg h mg) and faradaic efficiency (20.02%) at -0.4 V RHE during the electrochemical reduction of N. This work offers new insight into designing tandem electrocatalysts.
电化学合成氨是一种简便且可持续的方法，涉及多步电子和质子转移过程。因此，连续的电子和质子转移是必要的。在此，开发了一种在磁力搅拌辅助下将铁、钴和镍纳米颗粒组装成纳米链的通用方法。值得注意的是，由非晶态铁纳米颗粒组成的铁纳米链促进了电子和质子转移，在氮气电化学还原过程中，在 -0.4 V（相对于可逆氢电极）时，氨产量提高到（92.42 μg h mg），法拉第效率提高到（20.02%）。这项工作为设计串联电催化剂提供了新的见解。
