Indexed by:
Journal Papers
First Author:
Zeng, Libin
Correspondence Author:
Chen, AC (reprint author), Univ Guelph, Dept Chem, Electrochem Technol Ctr, 50 Stone Rd East, Guelph, ON N1G 2W1, Canada.
Co-author:
Li, Xinyong,Chen, Shuai,Wen, Jiali,Rahmati, Farnood,van der Zalm, Joshua,Chen, Aicheng
Date of Publication:
2020-03-14
Journal:
NANOSCALE
Included Journals:
SCIE
Document Type:
J
Volume:
12
Issue:
10
Page Number:
6029-6036
ISSN No.:
2040-3364
Abstract:
Transition metal chalcogenide MoS2 catalysts are highly selective for the electrochemical reduction of dinitrogen (N-2) to ammonia (NH3) in aqueous electrolytes. However, due to the low solubility of N-2 in water, limited N-2 diffusion and mass transport have heavily restricted the yield and the faradaic efficiency (FE). Here, we have demonstrated a highly efficacious assembled gas diffusion cathode with hollow Co-MoS2/N@C nanostructures to significantly improve the electrochemical reduction of N-2 to NH3. Our results revealed that the synthesized Co-MoS2 heterojunctions with abundant graphitic N groups exhibited a superb NH3 yield of 129.93 mu g h(-1) mg(cat)(-1) and a high faradaic efficiency of 11.21% at -0.4 V vs. the reversible hydrogen electrode (RHE), as well as excellent selectivity and stability. The strategy described in this study offers new inspiration to design high-performance electrocatalyst assemblies for the sustainable environmental and energy applications.
Translation or Not:
no
