title: CoS(2x)Se(2(1-x)) nanowire array: an efficient ternary electrocatalyst for the hydrogen evolution reaction.
abstract: Binary transition metal dichalcogenides (TMDs) have emerged as efficient catalysts for the hydrogen evolution reaction (HER). Co-based TMDs, such as CoS2 and CoSe2, demonstrate promising HER performance due to their intrinsic metallic nature. Recently, the ternary electrocatalysts were widely acknowledged for their prominent efficiency as compared to their binary counterparts due to increased active sites caused by the incorporation of different atoms. Herein, we successfully grew the ternary CoS2xSe2(1-x) (x = 0.67) nanowires (NWs) on a flexible carbon fiber. As a superior electrocatalyst, ternary CoS2xSe2(1-x) NWs arrays demonstrated excellent catalytic activity for electrochemical hydrogen evolution in acidic media, achieving current densities of 10 mA cm(-2) and 100 mA cm(-2) at overpotentials of 129.5 mV and 174 mV, respectively. Notably, the high stability of CoS2xSe2(1-x) NWs suggested that the ternary CoS2xSe2(1-x) NWs are a scalable catalyst for electrochemical hydrogen evolution.
authors: CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, 100190, Beijing, P. R. China. hej@nanoctr.cn and University of Chinese Academy of Science, No.19AYuquan Road, Beijing 100049, China and Sino-Danish Center for Education and Research, Beijing, 100190, China.
authors: Kaili
authors: K
authors: Liu
authors: CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, 100190, Beijing, P. R. China. hej@nanoctr.cn and University of Chinese Academy of Science, No.19AYuquan Road, Beijing 100049, China.
authors: Fengmei
authors: F
authors: Wang
authors: CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, 100190, Beijing, P. R. China. hej@nanoctr.cn and University of Chinese Academy of Science, No.19AYuquan Road, Beijing 100049, China.
authors: Kai
authors: K
authors: Xu
authors: CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, 100190, Beijing, P. R. China. hej@nanoctr.cn and University of Chinese Academy of Science, No.19AYuquan Road, Beijing 100049, China.
authors: Tofik Ahmed
authors: TA
authors: Shifa
authors: CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, 100190, Beijing, P. R. China. hej@nanoctr.cn.
authors: Zhongzhou
authors: Z
authors: Cheng
authors: CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, 100190, Beijing, P. R. China. hej@nanoctr.cn.
authors: Xueying
authors: X
authors: Zhan
authors: CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, 100190, Beijing, P. R. China. hej@nanoctr.cn.
authors: Jun
authors: J
authors: He