Structural and Electronic Optimization of MoS2 Edges for Hydrogen Evolution
學年 108
學期 1
出版（發表）日期 2019-11-06
作品名稱 Structural and Electronic Optimization of MoS2 Edges for Hydrogen Evolution
作品名稱（其他語言）
著者 Hao Wang, Xu Xiao, Shuyuan Liu, Chao-Lung Chiang, Xiaoxiao Kuai, Chun-Kuo Peng, Yu-Chang Lin, Xing Meng, Jianqing Zhao, Jinho Choi, Yan-Gu Lin, Jong-Min Lee, Lijun Gao
單位
出版者
著錄名稱、卷期、頁數 Journal of the American Chemical Society, 141, 46, 18578-18584
摘要 The activity and accessibility of MoS2 edge sites are critical to deliver high hydrogen evolution reaction (HER) efficiency. Here, a porous carbon network confining ultrasmall N-doped MoS2 nanocrystals (N-MoS2/CN) is fabricated by a self-templating strategy, which realizes synergistically structural and electronic modulations of MoS2 edges. Experiments and density functional theory calculations demonstrate that the N dopants could activate MoS2 edges for HER, while the porous carbon network could deliver high accessibility of the active sites from N-MoS2 nanocrystals. Consequently, N-MoS2/CN possesses superior HER activity with an overpotential of 114 mV at 10 mA cm–2 and excellent stability over 10 h, delivering one of best MoS2-based HER electrocatalysts. Moreover, this study opens a new venue for optimizing materials with enhanced accessible catalytic sites for energy-related applications.
關鍵字 Catalysts, Charge transfer, Evolution reactions, Impurities, Nanocrystals
語言 en_US
ISSN
期刊性質 國外
收錄於 SCI SSCI Scopus
產學合作
通訊作者 Jinho Choi, Jong-Min Lee & Lijun Gao
審稿制度 1
國別 USA
公開徵稿
出版型式 ,電子版
SDGS 夥伴關係,可負擔的潔淨能源,產業創新與基礎設施