@article{Yan2025, 
author = {Shuhao Yan and Caoyu Yang and Xuewei Huang and Xiao Ma and Chang Long and Lin Chang and Zhiyong Tang},
title = {Oxygen vacancy engineering on LiFe0.5Mn1.5O4 spinel for continuous ammonia electrosynthesis from nitrogen},
year = {2025},
journal = {Nano Research},
volume = {18},
number = {10},
pages = {94907464},
keywords = {oxygen vacancy, ammonia synthesis, electrocatalytic nitrogen reduction, membrane electrode assembly, spinel catalyst},
url = {https://www.sciopen.com/article/10.26599/NR.2025.94907464},
doi = {10.26599/NR.2025.94907464},
abstract = {Electrochemical nitrogen reduction reaction (NRR) powered by green electricity holds sustainable potential for delocalizing ammonia production traditionally implemented by the Haber–Bosch process. Unfortunately, the poor efficiency caused by the inertness of nitrogen–nitrogen triple bond and low aqueous solubility of N2 gas, as well as the unsatisfactory reproducibility reflected by the frequent false positives, largely impede the development in this field. Herein, we demonstrate that LiFe0.5Mn1.5O4 spinel (LFMO) with rich oxygen vacancies is capable of achieving ambient NRR with a Faradaic efficiency of 21.52% and NH3 yield rate of 22.45 μg·mgcat−1·h−1 in a H-type cell. Furthermore, hybridizing LFMO with reduced graphene oxide (rGO) on carbonized melamine sponge (CMS) to fabricate a composite cathode enables a high NH3 yield of 224 μg·cm−2·h−1 in the membrane electrode assembly (MEA) with robust reproducibility.}
}