Design of Electrocatalytic Janus WSeS/WSe2 Heterostructure Nanowall Electrodes with High Selectivity and Faradaic Efficiency for Nitrogen Reduction

Yu Ren Peng, Shin Yi Tang, Tzi Yi Yang, Paul Albert Sino, Yuan Chun Chen, Mayur Chaudhary, Chieh Ting Chen, Ruei Hong Cyu, Chia Chen Chung, Bing Ni Gu, Ming Jing Liu, Che Hao Hsu, Hung Yi Huang, Ling Lee, Shu Chi Wu, Yu Yi Jen, You Song Cheng, Chi Chang Hu, Wen Chien Miao, Hao Chung KuoYu Lun Chueh*

*此作品的通信作者

研究成果: Article同行評審

5 引文 斯高帕斯(Scopus)

摘要

The electrochemical nitrogen reduction reaction (NRR) is an attractive process for next-generation ammonia synthesis; therefore, identifying a suitable catalyst for this reaction is critical. In recent years, transition-metal dichalcogenides (TMDs) and their Janus structures have gained significant attention because of their outstanding catalytic properties. However, the synthesis of Janus TMDs remains challenging, and exposing their active sites is difficult when using a low-dimensional structure to improve the catalytic activity. To date, relatively little research has been conducted in this area. Herein, emerging Janus WSeS/WSe2 heterostructure nanowalls are systematically explored. These nanowalls are used as a nitrogen fixation catalyst in electrolytes. The nanowalls demonstrate a significant NH3 yield rate and Faradaic efficiency of 13.97 µg h-mgcat−1 and 35.24% at −0.3 V in 0.1 m HCl, as well as 15.96 µg h-mgcat−1 and 40.2% in 0.1 M Na2SO4. This study presents an in-depth analysis of the properties of Janus WSeS/WSe2 heterostructure nanowalls and a conceptual framework for linking TMD-based catalysts and the NRR.

原文English
文章編號2301979
期刊Advanced Energy Materials
13
發行號46
DOIs
出版狀態Published - 8 12月 2023

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