@article{Liu2024, 
author = {Dong-Xue Liu and Xin Deng and Yong-Fu Zhu and Zhe Meng and Xue-Feng Sun and Miao-Miao Shi and Hai-Xia Zhong and Jun-Min Yan},
title = {Boosting ammonia production in electrocatalytic NOx reduction on a robust Fe/FeMoO4 catalyst},
year = {2024},
journal = {Nano Research},
volume = {17},
number = {7},
pages = {5801-5806},
keywords = {ammonia synthesis, synergistic effect, alkaline/neutral electrolyte, NOx reduction},
url = {https://www.sciopen.com/article/10.1007/s12274-024-6661-y},
doi = {10.1007/s12274-024-6661-y},
abstract = {Electrocatalytic reduction of nitrate (NO3−) and nitride (NO2−) to ammonia (NH3) is of wide interest as a promising alternative to the energy-intensive Haber-Bosch route for mitigating the vast energy consumption and the accompanied carbon dioxide emission, as well as benefiting for the relevant sewage treatment. However, exploring an efficient and low-cost catalyst with high atomic utilization that can effectively facilitate the slow multi-electron transfer process remains a grand challenge. Herein, we present an efficient hydrogenation of NO3−/NO2− species to NH3 in both alkaline and neutral environments over the Fe2(MoO4)3 derived hybrid electrocatalyst with the metallic Fe site on FeMoO4 (Fe/FeMoO4). The Mo ingredient can play a synergistically positive role in further promoting the NH3 production on Fe. As a result, Fe/FeMoO4 behaves well in the electrochemical NH3 generation from NO2− with a maximum NH3 Faradaic efficiency (FE) of 96.53% and 87.68% in alkaline and neutral electrolyte, corresponding to the NH3 yield rate of 640.68 and 302.56 mg·h−1·mgcat. −1, respectively, which outperforms the Fe and Mo counterpart and other similar catalyst, showing the robust catalytic capacity of each active site.}
}