Modular construction of size-selected multiple-core Pt–TiO2 nanoclusters for electro-catalysis

Caroline E. Blackmore; Neil V. Rees; Richard E. Palmer

doi:10.1039/C5CP00285K

Modular construction of size-selected multiple-core Pt–TiO2 nanoclusters for electro-catalysis

Caroline E. Blackmore, Neil V. Rees, Richard E. Palmer

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Abstract

Size-selected binary platinum–titanium dioxide (Pt–TiO2) clusters have been generated using a magnetron sputtering gas condensation cluster source and imaged using a Scanning Transmission Electron Microscope (STEM) in High Angle Annular Dark Field (HAADF) mode. The core–shell clusters exhibit a Pt core of preferred size 30 ± 6 atoms (1 nm), embedded in an oxidised Ti shell, independent of the overall cluster size (varied between 2 nm and 5 nm). Smaller clusters, with mass ≤50 000 Daltons, show a single Pt core while larger clusters, ≥55 000 Daltons, feature multiple Pt cores, either isolated or aggregated within the TiO2 shell. These clusters may have applications in solar hydrogen production; preliminary work indicates catalytic active in the hydrogen evolution reaction.

Original language	English
Pages (from-to)	28005-28009
Number of pages	5
Journal	Physical Chemistry Chemical Physics
Volume	17
Issue number	42
Early online date	4 Mar 2015
DOIs	https://doi.org/10.1039/C5CP00285K
Publication status	Published - 14 Nov 2015

ASJC Scopus subject areas

Physical and Theoretical Chemistry
General Physics and Astronomy

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1039/C5CP00285K

Blackmore_Rees_Palmer_2015_Modular_construction_size_selected_PCCP
Eligibility for repository : checked 17/09/2015
Final published version, 2.47 MBLicence: Creative Commons: Attribution (CC BY)

Establish Career Fellowship Professor Richard Palmer - Super-Abundant Size-Selected Cluister Technology for Nanoscale Design of Functional Materials
Palmer, R. (Principal Investigator)
Engineering & Physical Science Research Council
1/01/13 → 28/02/17
Project: Research

Cite this

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title = "Modular construction of size-selected multiple-core Pt–TiO2 nanoclusters for electro-catalysis",

abstract = "Size-selected binary platinum–titanium dioxide (Pt–TiO2) clusters have been generated using a magnetron sputtering gas condensation cluster source and imaged using a Scanning Transmission Electron Microscope (STEM) in High Angle Annular Dark Field (HAADF) mode. The core–shell clusters exhibit a Pt core of preferred size 30 ± 6 atoms (1 nm), embedded in an oxidised Ti shell, independent of the overall cluster size (varied between 2 nm and 5 nm). Smaller clusters, with mass ≤50 000 Daltons, show a single Pt core while larger clusters, ≥55 000 Daltons, feature multiple Pt cores, either isolated or aggregated within the TiO2 shell. These clusters may have applications in solar hydrogen production; preliminary work indicates catalytic active in the hydrogen evolution reaction.",

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AU - Rees, Neil V.

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N2 - Size-selected binary platinum–titanium dioxide (Pt–TiO2) clusters have been generated using a magnetron sputtering gas condensation cluster source and imaged using a Scanning Transmission Electron Microscope (STEM) in High Angle Annular Dark Field (HAADF) mode. The core–shell clusters exhibit a Pt core of preferred size 30 ± 6 atoms (1 nm), embedded in an oxidised Ti shell, independent of the overall cluster size (varied between 2 nm and 5 nm). Smaller clusters, with mass ≤50 000 Daltons, show a single Pt core while larger clusters, ≥55 000 Daltons, feature multiple Pt cores, either isolated or aggregated within the TiO2 shell. These clusters may have applications in solar hydrogen production; preliminary work indicates catalytic active in the hydrogen evolution reaction.

AB - Size-selected binary platinum–titanium dioxide (Pt–TiO2) clusters have been generated using a magnetron sputtering gas condensation cluster source and imaged using a Scanning Transmission Electron Microscope (STEM) in High Angle Annular Dark Field (HAADF) mode. The core–shell clusters exhibit a Pt core of preferred size 30 ± 6 atoms (1 nm), embedded in an oxidised Ti shell, independent of the overall cluster size (varied between 2 nm and 5 nm). Smaller clusters, with mass ≤50 000 Daltons, show a single Pt core while larger clusters, ≥55 000 Daltons, feature multiple Pt cores, either isolated or aggregated within the TiO2 shell. These clusters may have applications in solar hydrogen production; preliminary work indicates catalytic active in the hydrogen evolution reaction.

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Modular construction of size-selected multiple-core Pt–TiO2 nanoclusters for electro-catalysis

Abstract

ASJC Scopus subject areas

UN SDGs

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Projects

Establish Career Fellowship Professor Richard Palmer - Super-Abundant Size-Selected Cluister Technology for Nanoscale Design of Functional Materials

Cite this