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Updated: Jun 13, 2025
Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions
Published on: October 5, 2019
Ag+-Induced Assembly of Pt Clusters for Photocatalytic Hydrogen Production
Xiaojing Zhao1, Wen-Jie Chen1, Qing-Man Liang2
1College of Chemical Engineering and Materials, Quanzhou Normal University, Quanzhou 362000, China.
Abstract:
Cluster-assembled nanowires provide a unique strategy for the preparation of high-performance nanostructures. However, existing preparations are limited by complex processes and harsh reaction conditions. Here, Ag+ ions were utilized as a novel structure-directing agent to generate the self-assembly of Pt clusters to form ultrafine nanowires with a diameter of less than 5 nm. Electrospray ionization mass spectrometry (ESI-MS) and extended X-ray absorption fine structure (EXAFS) characterizations demonstrated that every Ag+ bridged two [Pt3(CO)3(μ2-CO)3]2- clusters through coordination and formed a sandwich-like structure of [Pt3(CO)3(μ2-CO)3]Ag[Pt3(CO)3(μ2-CO)3]3-. As a result, multiple sandwich-like structures of [Pt3(CO)3(μ2-CO)3]Ag[Pt3(CO)3(μ2-CO)3]3- were established by Ag+ to form Pt nanowire superstructures {[Pt3(CO)6]Ag[Pt3(CO)6]Ag[Pt3(CO)6] (abbreviated as Ag-Pt NWS). Our results demonstrate that the Pt nanowire superstructures showed promising cocatalytic performance for photocatalytic H2 production with the involvement of Ag+, which promises a desirable way to develop advanced functional nanomaterials.
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