Formation of carbonate on Ag(111) under exposure to ethylene and oxygen gases evidenced by near ambient pressure XPS and NEXAFS

Kazuhisa Isegawa; Kohei Ueda; Satoru Hiwasa; Kenta Amemiya; Kazuhiko Mase; Hiroshi Kondoh

doi:10.1246/cl.180891

Formation of carbonate on Ag(111) under exposure to ethylene and oxygen gases evidenced by near ambient pressure XPS and NEXAFS

Kazuhisa Isegawa, Kohei Ueda, Satoru Hiwasa, Kenta Amemiya, Kazuhiko Mase, Hiroshi Kondoh

Department of Chemistry

Research output: Contribution to journal › Article

1 Citation (Scopus)

Abstract

The active oxygen species for ethylene epoxidation on Ag surfaces has been a long-standing issue. We conducted in situ observations of Ag(111) surfaces under exposure to ethylene and oxygen gases with near ambient pressure (NAP) X-ray photo-electron spectroscopy and near-edge X-ray absorption fine structure spectroscopy. Combined results of these spectroscopies evidence that a carbonate species with a flat-lying configuration is formed on the Ag(111) surface at 370500 K under exposure to the NAP gas mixture of ethylene and oxygen.

Original language	English
Pages (from-to)	159-162
Number of pages	4
Journal	Chemistry Letters
Volume	48
Issue number	2
DOIs	https://doi.org/10.1246/cl.180891
Publication status	Published - 2019 Jan 1

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Keywords

Ethylene epoxidation
NAP-XPS
Silver single crystal

ASJC Scopus subject areas

Chemistry(all)

Cite this

Isegawa, K., Ueda, K., Hiwasa, S., Amemiya, K., Mase, K., & Kondoh, H. (2019). Formation of carbonate on Ag(111) under exposure to ethylene and oxygen gases evidenced by near ambient pressure XPS and NEXAFS. Chemistry Letters, 48(2), 159-162. https://doi.org/10.1246/cl.180891

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abstract = "The active oxygen species for ethylene epoxidation on Ag surfaces has been a long-standing issue. We conducted in situ observations of Ag(111) surfaces under exposure to ethylene and oxygen gases with near ambient pressure (NAP) X-ray photo-electron spectroscopy and near-edge X-ray absorption fine structure spectroscopy. Combined results of these spectroscopies evidence that a carbonate species with a flat-lying configuration is formed on the Ag(111) surface at 370500 K under exposure to the NAP gas mixture of ethylene and oxygen.",

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AU - Amemiya, Kenta

AU - Mase, Kazuhiko

AU - Kondoh, Hiroshi

PY - 2019/1/1

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N2 - The active oxygen species for ethylene epoxidation on Ag surfaces has been a long-standing issue. We conducted in situ observations of Ag(111) surfaces under exposure to ethylene and oxygen gases with near ambient pressure (NAP) X-ray photo-electron spectroscopy and near-edge X-ray absorption fine structure spectroscopy. Combined results of these spectroscopies evidence that a carbonate species with a flat-lying configuration is formed on the Ag(111) surface at 370500 K under exposure to the NAP gas mixture of ethylene and oxygen.

AB - The active oxygen species for ethylene epoxidation on Ag surfaces has been a long-standing issue. We conducted in situ observations of Ag(111) surfaces under exposure to ethylene and oxygen gases with near ambient pressure (NAP) X-ray photo-electron spectroscopy and near-edge X-ray absorption fine structure spectroscopy. Combined results of these spectroscopies evidence that a carbonate species with a flat-lying configuration is formed on the Ag(111) surface at 370500 K under exposure to the NAP gas mixture of ethylene and oxygen.

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10.1246/cl.180891