A high-pressure-induced dense CO overlayer on a Pt(111) surface: a chemical analysis using in situ near ambient pressure XPS

Ryo Toyoshima; Masaaki Yoshida; Yuji Monya; Kazuma Suzuki; Kenta Amemiya; Kazuhiko Mase; Bongjin Simon Mun; Hiroshi Kondoh

doi:10.1039/C4CP04318A

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A high-pressure-induced dense CO overlayer on a Pt(111) surface: a chemical analysis using in situ near ambient pressure XPS†

Ryo Toyoshima,^a Masaaki Yoshida,^a Yuji Monya,^a Kazuma Suzuki,^a Kenta Amemiya,^b Kazuhiko Mase,^b Bongjin Simon Mun^c and Hiroshi Kondoh*^a

Author affiliations

* Corresponding authors

^a Department of Chemistry, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
E-mail: kondoh@chem.keio.ac.jp
Tel: +81-45-566-1592

^b Institute of Materials Structure Science, High Energy Accelerator Research Organization, and The Graduate University for Advanced Studies, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan

^c Department of Physics and Photon Science, and Ertl Center for Electrochemistry and Catalysis, Gwangju Institute of Science and Technology, Gwangju 500-712, Republic of Korea

Abstract

We investigated the high-density CO adsorption phase formed on a Pt(111) surface when exposed to CO gas of pressure ranging from UHV to 100 mTorr using near-ambient-pressure (NAP)-XPS. Combined results from the NAP-XPS measurements and DFT calculations reveal the adsorption structure of CO molecules in the dense CO overlayer, which is stable under realistic conditions.

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Article information

DOI: https://doi.org/10.1039/C4CP04318A
Article type: Communication
Submitted: 25 Sep 2014
Accepted: 26 Sep 2014
First published: 07 Oct 2014

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Phys. Chem. Chem. Phys., 2014,16, 23564-23567

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A high-pressure-induced dense CO overlayer on a Pt(111) surface: a chemical analysis using in situ near ambient pressure XPS

R. Toyoshima, M. Yoshida, Y. Monya, K. Suzuki, K. Amemiya, K. Mase, B. S. Mun and H. Kondoh, Phys. Chem. Chem. Phys., 2014, 16, 23564 DOI: 10.1039/C4CP04318A

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Physical Chemistry Chemical Physics

A high-pressure-induced dense CO overlayer on a Pt(111) surface: a chemical analysis using in situ near ambient pressure XPS†

Abstract

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A high-pressure-induced dense CO overlayer on a Pt(111) surface: a chemical analysis using in situ near ambient pressure XPS

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