Y. Zhang等人合成了具有多层中空结构的Cr₂O₃微球，在0.1 M Na₂SO₄溶液中，-0.9 V（vs. RHE）下该材料电催化N₂还原合成氨(NRR)的法拉第效率达6.78%，氨气产率达25.3 μg/h/mg.

Ya Zhang, Liang Chen*, Tingshuai Li*, Xuping Sun*, et al. High-Performance Electrohydrogenation of N₂ to NH₃ Catalyzed by Multishelled Hollow Cr₂O₃ Microspheres under Ambient Conditions

ACS Catal., 2018, 8, pp 8540–8544 DOI: 10.1021/acscatal.8b02311

https://pubs.acs.org/doi/10.1021/acscatal.8b02311