Shuo Zhang, Jianghua Wu, Mengting Zheng, Xin Jin, Zihan Shen, Zhonghua Li, Yanjun Wang, Quan Wang, Xuebin Wang, Hui Wei, Jiangwei Zhang, Peng Wang, Shanqing Zhang, Liyan Yu, Lifeng Dong, Qingshan Zhu, Huigang Zhang, Jun Lu
Electrochemical conversion of nitrate to ammonia offers an efficient approach to reducing nitrate pollutants and a potential technology for low-temperature and low-pressure ammonia synthesis. However, the process is limited by multiple competing reactions and NO3 - adsorption on cathode surfaces. Here, we report a Fe/Cu diatomic catalyst on holey nitrogen-doped graphene which exhibits high catalytic activities and selectivity for ammonia production. The catalyst enables a maximum ammonia Faradaic efficiency of 92...
June 19, 2023: Nature Communications