Electrochemical Ammonia Synthesis via Nitrogen Reduction Reaction on a MoS2 Catalyst: Theoretical and Experimental Studies |
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| Authors: | Ling Zhang Xuqiang Ji Xiang Ren Yongjun Ma Xifeng Shi Ziqi Tian Abdullah M. Asiri Liang Chen Bo Tang Xuping Sun |
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| Affiliation: | 1. Institute of Fundamental and Frontier Science, University of Electronic Science and Technology of China, Chengdu, Sichuan, China;2. College of Chemistry, Sichuan University, Chengdu, Sichuan, China;3. Analytical and Testing Center, Southwest University of Science and Technology, Mianyang, Sichuan, China;4. College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, Shandong, China;5. Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang, China;6. Chemistry Department, Faculty of Science & Center of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah, Saudi Arabia |
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| Abstract: | The discovery of stable and noble‐metal‐free catalysts toward efficient electrochemical reduction of nitrogen (N2) to ammonia (NH3) is highly desired and significantly critical for the earth nitrogen cycle. Here, based on the theoretical predictions, MoS2 is first utilized to catalyze the N2 reduction reaction (NRR) under room temperature and atmospheric pressure. Electrochemical tests reveal that such catalyst achieves a high Faradaic efficiency (1.17%) and NH3 yield (8.08 × 10?11 mol s?1 cm?1) at ?0.5 V versus reversible hydrogen electrode in 0.1 m Na2SO4. Even in acidic conditions, where strong hydrogen evolution reaction occurs, MoS2 is still active for the NRR. This work represents an important addition to the growing family of transition‐metal‐based catalysts with advanced performance in NRR. |
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| Keywords: | ambient conditions density functional theory electrocatalysis MoS2 nanosheet arrays N2 reduction reaction |
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