纳米片
材料科学
亚硝酸盐
电催化剂
法拉第效率
氨
选择性
产量(工程)
无机化学
电化学
化学工程
核化学
催化作用
纳米技术
硝酸盐
电极
物理化学
冶金
化学
有机化学
工程类
作者
Long Hu,Xun He,Jie Yao,Xiuhong Li,Jie Chen,Jun Li,Xiaoya Fan,Lisi Xie,Zhengwei Cai,Shengjun Sun,Dongdong Zheng,Binwu Ying,Yan Wang,Yonglan Luo,Qian Liu,Amr Farouk,Mohamed S. Hamdy,Sulaiman Y. M. Alfaifi,Yunwen Liao,Qingquan Kong,Xuping Sun
标识
DOI:10.1016/j.mtphys.2023.101170
摘要
Electrocatalytic reduction of nitrite (NO2−RR) is considered an effective method for removing harmful NO2− in wastewater while simultaneously generating high-value-added ammonia (NH3). This process, however, requires electrocatalysts with high activity and selectivity. Herein, a MoSe2 nanosheet array with Se vacancies supported on carbon cloth (MoSe2– x/CC)is proposed as a high-efficiency electrocatalyst for NO2− reduction to NH3. In 0.1 M phosphate-buffered saline with 0.1 M NO2−, MoSe2–x/CC exhibits an outstanding NH3 yield of 446.0 μmol h−1 cm−2 and a Faradaic efficiency of 96.9%, overpassing that of MoSe2/CC (278.1 μmol h−1 cm−2, 83.1%). Additionally, density functional theory calculations gain insights into reaction mechanism of MoSe2–x towards NO2−RR.
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