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Atomic Structural Evolution of Single-Layer Pt Clusters as Efficient Electrocatalysts

Journal Article


Abstract


  • The rational synthesis of single-layer noble metal directly anchored on support materials is an elusive target to accomplish for a long time. This paper reports well-defined single-layer Pt (Pt-SL) clusters anchored on ultrathin TiO2 nanosheets—as a new frontier in electrocatalysis. The structural evolution of Pt-SL/TiO2 via self-assembly of single Pt atoms (Pt-SA) is systematically recorded. Significantly, the Pt atoms of Pt-SL/TiO2 possess a unique electronic configuration with Pt-Pt covalent bonds surrounded by abundant unpaired electrons. This Pt-SL/TiO2 catalyst presents enhanced electrochemical performance toward diverse electrocatalytic reactions (such as the hydrogen evolution reaction and the oxygen reduction reaction) compared with Pt-SA, multilayer Pt nanoclusters, and Pt nanoparticles, suggesting an efficient new type of catalyst that can be achieved by constructing single-layer atomic clusters on supports.

Publication Date


  • 2021

Published In


Citation


  • Zhang, B. W., Ren, L., Xu, Z. F., Cheng, N. Y., Lai, W. H., Zhang, L., . . . Dou, S. X. (2021). Atomic Structural Evolution of Single-Layer Pt Clusters as Efficient Electrocatalysts. Small, 17(26). doi:10.1002/smll.202100732

Scopus Eid


  • 2-s2.0-85107032989

Volume


  • 17

Issue


  • 26

Abstract


  • The rational synthesis of single-layer noble metal directly anchored on support materials is an elusive target to accomplish for a long time. This paper reports well-defined single-layer Pt (Pt-SL) clusters anchored on ultrathin TiO2 nanosheets—as a new frontier in electrocatalysis. The structural evolution of Pt-SL/TiO2 via self-assembly of single Pt atoms (Pt-SA) is systematically recorded. Significantly, the Pt atoms of Pt-SL/TiO2 possess a unique electronic configuration with Pt-Pt covalent bonds surrounded by abundant unpaired electrons. This Pt-SL/TiO2 catalyst presents enhanced electrochemical performance toward diverse electrocatalytic reactions (such as the hydrogen evolution reaction and the oxygen reduction reaction) compared with Pt-SA, multilayer Pt nanoclusters, and Pt nanoparticles, suggesting an efficient new type of catalyst that can be achieved by constructing single-layer atomic clusters on supports.

Publication Date


  • 2021

Published In


Citation


  • Zhang, B. W., Ren, L., Xu, Z. F., Cheng, N. Y., Lai, W. H., Zhang, L., . . . Dou, S. X. (2021). Atomic Structural Evolution of Single-Layer Pt Clusters as Efficient Electrocatalysts. Small, 17(26). doi:10.1002/smll.202100732

Scopus Eid


  • 2-s2.0-85107032989

Volume


  • 17

Issue


  • 26