Enhanced nitrate-to-ammonia electroreduction on manganese-doped ceria with oxygen vacancies

• Published in: Chemical engineering journal (Lausanne, Switzerland : 1996) Vol. 512; p. 162323
• Main Authors: Sun, Xiaoting, Rong, Wanting, Wang, Lanfang, Lv, Jiangnan, Yang, Ruixia, Liang, Tingting, Yang, Qianwen, Xu, Xiaohong, Liu, Yang
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 15.05.2025
• Subjects: Ammonia synthesis; Ceria; Doping effect; Nitrate reduction; Rare-earth metal oxide; Rare-earth metal oxide; Ammonia synthesis; Doping effect; Nitrate reduction; Ceria

[Display omitted] •We successfully synthesized Mn-CeO2−x nanoparticles, where Mn2+ is stabilized within the CeO2−x host lattice.•Mn-CeO2−x attains the highest NH3 FE of 91.8 % at −0.60 VRHE and the maximum NH3 yield rate of 1.01 mmol h−1 cm−2.•Mn doping optimizes the electronic structure of CeO2−x c...