NIMTE OpenIR  > 2018专题
High-Performance Electrohydrogenation of N-2 to NH3 Catalyzed by Multishelled Hollow Cr2O3 Microspheres under Ambient Conditions
Zhang, Ya; Qiu, Weibin; Ma, Yongjun; Luo, Yonglan; Tian, Ziqi; Cui, Guanwei; Xie, Fengyu; Chen, Liang; Li, Tingshuai; Sun, Xuping
2018
发表期刊ACS CATALYSIS
卷号8期号:9页码:8540-8544
摘要Electrohydrogenation of N-2 to NH3 is emerging as an environmentally benign strategy to tackle the issues associated with the energy-intensive, CO2-emitting Haber-Bosch process. However, the method is severely challenged by N-2 activation and needs efficient N-2 reduction reaction (NRR) catalysts. Here, we report that multishelled hollow Cr2O3 microspheres (MHCMs), which are synthesized by a facile synthetic route, can serve as efficient and selective non-noble metal electrocatalysts for NRR. In 0.1 M Na2SO4 solution, the MHCMs achieve a high Faradaic efficiency (6.78%) and a large NH3 yield (25.3 mu g h(-1) mg(cat)(-1)) at -0.9 V vs reversible hydrogen electrode. The MHCMs also exhibit high stability during the reaction. Density functional theory calculations suggest that NRR over MHCMs occurs via both distal associative and partially alternative routes.
关键词Atmospheric-pressure Electrochemical Synthesis Nitrogen Reduction Ammonia-synthesis Oxygen Vacancies Low-temperature Visible-light Dinitrogen Conversion Nanosheets
学科领域Chemistry ; Electrochemistry ; Energy & Fuels ; Materials Science
语种英语
文献类型期刊论文
条目标识符http://ir.nimte.ac.cn/handle/174433/17216
专题2018专题
推荐引用方式
GB/T 7714
Zhang, Ya,Qiu, Weibin,Ma, Yongjun,et al. High-Performance Electrohydrogenation of N-2 to NH3 Catalyzed by Multishelled Hollow Cr2O3 Microspheres under Ambient Conditions[J]. ACS CATALYSIS,2018,8(9):8540-8544.
APA Zhang, Ya.,Qiu, Weibin.,Ma, Yongjun.,Luo, Yonglan.,Tian, Ziqi.,...&Sun, Xuping.(2018).High-Performance Electrohydrogenation of N-2 to NH3 Catalyzed by Multishelled Hollow Cr2O3 Microspheres under Ambient Conditions.ACS CATALYSIS,8(9),8540-8544.
MLA Zhang, Ya,et al."High-Performance Electrohydrogenation of N-2 to NH3 Catalyzed by Multishelled Hollow Cr2O3 Microspheres under Ambient Conditions".ACS CATALYSIS 8.9(2018):8540-8544.
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