Modular divergent creation of dual-cocatalysts integrated semiconducting sulfide nanotriads for enhanced photocatalytic hydrogen evolution  

作　　者：Chao Gu Yu-Qing Liu Guo-Qiang Liu Hou-Ming Xu Yi Li Xiao-Long Zhang Liang Wu Lei Shi Shi-Kui Han Min-Rui Gao Shu-Hong Yu 

机构地区：[1]Department of Chemistry,Institute of Biomimetic Materials&Chemistry,Anhui Engineering Laboratory of Biomimetic Materials,Division of Nanomaterials&Chemistry,Hefei National Laboratory for Physical Sciences at the Microscale,Institute of Energy,Hefei Comprehensive National Science Center,University of Science and Technology of China,Hefei 230026,China [2]Key Laboratory of Advanced Catalytic Materials and Reaction Engineering,School of Chemistry and Chemical Engineering,Hefei University of Technology,Hefei 230009,China

出　　处：《Nano Research》2023年第5期7967-7973,共7页纳米研究（英文版）

基　　金：the National Natural Science Foundation of China(Nos.21431006,U1932213,21905261,and 22171065);the National key Research and Development Program of China(Nos.2018YFE0202201 and 2021YFA0715700);the University Synergy Innovation Program of Anhui Province(No.GXXT-2019-028);the Science and Technology Major Project of Anhui Province(No.201903a05020003);S.K.H.acknowledges the Anhui Province Key Research and Development Plan(No.202104e11020005);the Hefei National Laboratory for Physical Sciences at the Microscale(No.KF2020005);.C.G.acknowledges the National Postdoctoral Program for Innovative Talents(No.BX20180284);the China Postdoctoral Science Foundation(No.2019M660155).

摘　　要：Heteronanostructures(HNs)with precise components and interfaces are important for many applications,such as designing efficient and robust solar-to-fuel catalysts via integrating specific semiconductors with favorable band alignments.However,rationally endowing such features with rigorous framework control remains a synthetic bottleneck.Herein,we report a modular divergent creation of dual-cocatalysts integrated semiconducting sulfide nanotriads(NTds),comprising both isolated Pd_(x)S oxidation(ox)and MoS_(2) reduction(red)domains within each single CdS counterpart,which exhibit superior photocatalytic activity and stability for hydrogen evolution reaction(HER).The stepwise constructed Pd_(x)S_((ox))−CdS−MoS_(2(red)) NTds possess dualinterfaces facilitating continuous charge separation and segregated active sites accelerating redox reactions,respectively,achieving the HER rate up to 9 mmol·h^(−1)·g^(−1),which is about 60 times higher than that of bare CdS,and show no evidence of deactivation after long-term cycling.This design principle and transformation protocol provide predictable retrosynthetic pathways to HNs with increased degree of complexity and more elaborate functionalities that are otherwise inaccessible.

关 键 词：heteronanostructures colloidal synthesis semiconducting sulfides PHOTOCATALYTIC hydrogen evolution reaction 

分 类 号：O64[理学—物理化学]