Spectroscopic Identification of a Hydrogen Peroxide-Like Intermediate Formed after Molecular Oxygen Adsorption on Hydrogen Rich Pt(111)
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Published:2010-10-01
Issue:1
Volume:33
Page:97-103
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ISSN:1938-5862
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Container-title:ECS Transactions
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language:
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Short-container-title:ECS Trans.
Author:
Näslund Lars-Aåke,MacNaughton Janay,Anniyev Toyli,Ogasawara Hirohito,Nilsson Anders
Abstract
Using polarization dependent O 1s x-ray absorption spectroscopy we identify a hydrogen peroxide-like intermediate on the surface of hydrogenated Pt(111) after exposure of a saturated amount of molecular oxygen. The x-ray absorption spectroscopy investigation further reveals that the O-O molecular axis of the hydrogen peroxide-like intermediate is close to parallel and the O-H group is perpendicular to the surface. The O-O bond length is determined to be 1.43 Aå.
Publisher
The Electrochemical Society