文献类型：期刊文献

英文题名：CoNiSe2 heteronanorods decorated with layered-double-hydroxides for efficient hydrogen evolution

作者：Yang, Yaqing[1];Zhang, Wenbiao[1];Xiao, Yongle[1];Shi, Zhangping[2,3];Cao, Xiaoming[4,5];Tang, Yi[2,3];Gao, Qingsheng[1]

机构：[1]Jinan Univ, Coll Chem & Mat Sci, Dept Chem, Guangzhou 510632, Guangdong, Peoples R China;[2]Fudan Univ, Lab Adv Mat, Shanghai Key Lab Mol Catalysis & Innovat Mat, Dept Chem, Shanghai 200433, Peoples R China;[3]Fudan Univ, Collaborat Innovat Ctr Chem Energy Mat, Shanghai 200433, Peoples R China;[4]East China Univ Sci & Technol, Ctr Computat Chem, Shanghai 200237, Peoples R China;[5]East China Univ Sci & Technol, Sch Chem & Mol Engn, Res Inst Ind Catalysis, Shanghai 200237, Peoples R China

年份：2019

卷号：242

起止页码：132

外文期刊名：APPLIED CATALYSIS B-ENVIRONMENTAL

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000450135000015)】；

基金：The authors appreciate the financial support from National Natural Science Foundation of China (21433002 and 21773093) and National Key Research and Development Program of China (2018YFA0209402). Q. S. Gao also thanks the support from Natural Science Foundation of Guangdong Province (2015A030306014 and 2014TQ01N036) and Guangzhou Science and Technology Program (201707010268).

语种：英文

外文关键词：Hydrogen evolution reaction; Metal selenides; Layered-double-hydroxides; Heterostructures; Synergic effects

摘要：Efficient electrocatalysts for hydrogen evolution reaction (HER) are critical to reduce energy losses in alkaline water electrolysis. Herein, CoNiSe2 heteronanorods decorated with layered-double-hydroxides (LDHs) nanosheets are designed, in which the selenide-LDHs interfaces can boost H2O chemisorption to produce reactive H intermediate, resulting in fast HER kinetics. Such promotion in HER is further interpreted by theoretical calculation and in-situ Raman investigation. By contrast, it's negligible for anodic oxygen evolution. Assembled as an electrolyzer for overall water splitting, the heteronanorods afford a quite low cell voltage of 1.44 V at a geometric current density of 10 mA cm(-2) and remarkable stability for more than 48 h in 1.0 M KOH, performing among the best of non-precious electrocatalysts. Identifying efficient electrocatalysis on engineered heterointerfaces, this work is anticipated to open up new opportunities for catalyst design in energy chemistry.