Jia Kun, Wang Yuan, Pan Qi, Zhong Benhe, Luo Yonglan, Cui Guanwei, Guo Xiaodong, Sun Xuping
School of Chemical Engineering, Sichuan University Chengdu 610065 China
Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China Chengdu 610054 China
Nanoscale Adv. 2018 Nov 21;1(3):961-964. doi: 10.1039/c8na00300a. eCollection 2019 Mar 12.
The conventional Haber-Bosch process for industrial NH production from N and H is highly energy-intensive with a large amount of CO emissions and finding a more suitable method for NH synthesis under mild conditions is a very attractive topic. The electrocatalytic N reduction reaction (NRR) offers us an environmentally benign and sustainable route. In this communication, we report that C-doped TiO nanoparticles act as an efficient electrocatalyst for the NRR with excellent selectivity. In 0.1 M NaSO, it achieves an NH yield of 16.22 μg h mg and a faradaic efficiency of 1.84% at -0.7 V the reversible hydrogen electrode. Furthermore, this catalyst also shows good stability during electrolysis and recycling tests.
传统的由氮气和氢气生产工业氨的哈伯-博施法能源密集度高，会排放大量一氧化碳，因此寻找一种在温和条件下更合适的氨合成方法是一个非常有吸引力的课题。电催化氮还原反应（NRR）为我们提供了一条环境友好且可持续的途径。在本通讯中，我们报道了碳掺杂的二氧化钛纳米颗粒作为一种高效的电催化剂用于NRR，具有优异的选择性。在0.1 M硫酸钠中，在相对于可逆氢电极-0.7 V时，它实现了16.22 μg h mg的氨产率和1.84%的法拉第效率。此外，该催化剂在电解和循环测试中也表现出良好的稳定性。
