Low‐Temperature Catalytic H 2  Oxidation over Au Nanoparticle/TiO 2  Dual Perimeter Sites | Zendy

Green Isabel Xiaoye | Zendy; Tang Wenjie | Zendy; Neurock Matthew | Zendy; Yates John T. | Zendy

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Low‐Temperature Catalytic H 2 Oxidation over Au Nanoparticle/TiO 2 Dual Perimeter Sites

Author(s) -

Green Isabel Xiaoye,

Tang Wenjie,

Neurock Matthew,

Yates John T.

Publication year - 2011

Publication title -

angewandte chemie international edition

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 1433-7851

DOI - 10.1002/anie.201101612

Subject(s) - dissociation (chemistry) , catalysis , nanoparticle , spectroscopy , atmospheric temperature range , perimeter , activation energy , physics , chemistry , materials science , nanotechnology , thermodynamics , organic chemistry , quantum mechanics , mathematics , geometry

The catalytic reaction of H 2 +O 2 over a Au/TiO 2 catalyst was studied by transmission IR spectroscopy and DFT calculations. A reaction path of O 2 ‐assisted H 2 dissociation at the Au/TiO 2 dual perimeter site was found to proceed through a TiOOH intermediate (see scheme). The calculated barrier range (0.13–0.25 eV) for the sequence of low‐energy steps agree with the experimental E a of 0.22 eV.

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