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Mo2C for electrocatalytic nitrate reduction to ammonia
Dalton Transactions ( IF 3.5 ) Pub Date : 2022-11-14 , DOI: 10.1039/d2dt03189b
Xiaotian Li 1 , Shiyan Wang 2 , Guohui Wang 1 , Peng Shen 1 , Dongwei Ma 3 , Ke Chu 1
Affiliation  

Electrocatalytic nitrate reduction to ammonia (NRA) shows great potential to simultaneously realize sustainable NH3 production and NO3 pollutant elimination. Herein, Mo2C, a typical transition metal carbide, is first demonstrated to be an efficient and durable NRA catalyst. The developed Mo2C nanoparticles anchored on reduced graphene oxide (Mo2C/RGO) show a maximum NH3-faradaic efficiency of 85.2% with a corresponding NH3 yield of 4.8 mg h−1 cm−2. Theoretical computations reveal that surface-terminated Mo sites of Mo2C can selectively absorb NO3 and effectively boost the NRA process through a NOH hydrogenation pathway.

中文翻译:

Mo2C用于电催化硝酸盐还原制氨

电催化硝酸盐还原成氨 (NRA) 显示出同时实现可持续 NH 3生产和 NO 3 -污染物消除的巨大潜力。在此,Mo 2 C(一种典型的过渡金属碳化物)首次被证明是一种高效且耐用的 NRA 催化剂。开发的固定在还原氧化石墨烯 (Mo 2 C/RGO)上的 Mo 2 C 纳米颗粒显示出 85.2% 的最大 NH 3 -法拉第效率,相应的 NH 3产率为 4.8 mg h -1 cm -2。理论计算表明,Mo 2 C 的表面终止 Mo 位点可以选择性地吸收 NO 3并通过 NOH 加氢途径有效促进 NRA 过程。
更新日期:2022-11-18
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