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

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Nano Research 2023年第5期16卷 7967-7973页

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 Department of Chemistry Institute of Biomimetic Materials&ChemistryAnhui Engineering Laboratory of Biomimetic MaterialsDivision of Nanomaterials&ChemistryHefei National Laboratory for Physical Sciences at the MicroscaleInstitute of EnergyHefei Comprehensive National Science CenterUniversity of Science and Technology of ChinaHefei 230026China Key Laboratory of Advanced Catalytic Materials and Reaction Engineering School of Chemistry and Chemical EngineeringHefei University of TechnologyHefei 230009China

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 ***,rationally endowing such features with rigorous framework control remains a synthetic ***,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 *** 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

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