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

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

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* Corresponding authors

^a Department of Chemistry, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 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, 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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Publication details

The article was received on 25 Sep 2014, accepted on 26 Sep 2014 and first published on 07 Oct 2014

Article type: Communication

DOI: 10.1039/C4CP04318A

Citation: 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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Ryo Toyoshima

Masaaki Yoshida

Yuji Monya

Kazuma Suzuki

Kenta Amemiya

Kazuhiko Mase

Bongjin Simon Mun

Hiroshi Kondoh

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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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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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