In situ analysis of catalytically active Pd surfaces for CO oxidation with near ambient pressure XPS

Hiroshi Kondoh, Ryo Toyoshima, Yuji Monya, Masaaki Yoshida, Kazuhiko Mase, Kenta Amemiya, Bongjin Simon Mun

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

X-ray photoelectron spectroscopy (XPS) is useful for in situ analysis of catalytically active surfaces under reaction conditions. We conducted in situ observations of CO oxidation on Pd single-crystal surfaces with different orientations under near ambient pressure (NAP) conditions with XPS. In this short review we compare catalytically active surfaces of Pd with the different orientations. Both surface oxides and atomic oxygen chemisorbed on metallic surfaces can be active for CO oxidation depending on surface geometric structure. We propose similarity between the surface oxides and the chemisorbed oxygen from a viewpoint of availability of active oxygen. Catalytic activity of the metallic surface under NAP condition is also compared with that under ultrahigh vacuum conditions.

Original languageEnglish
Pages (from-to)14-20
Number of pages7
JournalCatalysis Today
Volume260
DOIs
Publication statusPublished - 2016 Feb 1

Fingerprint

Carbon Monoxide
X ray photoelectron spectroscopy
Oxidation
Oxides
Oxygen
Single crystal surfaces
Ultrahigh vacuum
Crystal orientation
Reactive Oxygen Species
Catalyst activity
Availability

Keywords

  • Ambient pressure XPS
  • CO oxidation
  • In-situ observation

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

Cite this

In situ analysis of catalytically active Pd surfaces for CO oxidation with near ambient pressure XPS. / Kondoh, Hiroshi; Toyoshima, Ryo; Monya, Yuji; Yoshida, Masaaki; Mase, Kazuhiko; Amemiya, Kenta; Mun, Bongjin Simon.

In: Catalysis Today, Vol. 260, 01.02.2016, p. 14-20.

Research output: Contribution to journalArticle

Kondoh, Hiroshi ; Toyoshima, Ryo ; Monya, Yuji ; Yoshida, Masaaki ; Mase, Kazuhiko ; Amemiya, Kenta ; Mun, Bongjin Simon. / In situ analysis of catalytically active Pd surfaces for CO oxidation with near ambient pressure XPS. In: Catalysis Today. 2016 ; Vol. 260. pp. 14-20.
@article{4b853e39e4a84f6488b4a2f10cc896da,
title = "In situ analysis of catalytically active Pd surfaces for CO oxidation with near ambient pressure XPS",
abstract = "X-ray photoelectron spectroscopy (XPS) is useful for in situ analysis of catalytically active surfaces under reaction conditions. We conducted in situ observations of CO oxidation on Pd single-crystal surfaces with different orientations under near ambient pressure (NAP) conditions with XPS. In this short review we compare catalytically active surfaces of Pd with the different orientations. Both surface oxides and atomic oxygen chemisorbed on metallic surfaces can be active for CO oxidation depending on surface geometric structure. We propose similarity between the surface oxides and the chemisorbed oxygen from a viewpoint of availability of active oxygen. Catalytic activity of the metallic surface under NAP condition is also compared with that under ultrahigh vacuum conditions.",
keywords = "Ambient pressure XPS, CO oxidation, In-situ observation",
author = "Hiroshi Kondoh and Ryo Toyoshima and Yuji Monya and Masaaki Yoshida and Kazuhiko Mase and Kenta Amemiya and Mun, {Bongjin Simon}",
year = "2016",
month = "2",
day = "1",
doi = "10.1016/j.cattod.2015.05.016",
language = "English",
volume = "260",
pages = "14--20",
journal = "Catalysis Today",
issn = "0920-5861",
publisher = "Elsevier",

}

TY - JOUR

T1 - In situ analysis of catalytically active Pd surfaces for CO oxidation with near ambient pressure XPS

AU - Kondoh, Hiroshi

AU - Toyoshima, Ryo

AU - Monya, Yuji

AU - Yoshida, Masaaki

AU - Mase, Kazuhiko

AU - Amemiya, Kenta

AU - Mun, Bongjin Simon

PY - 2016/2/1

Y1 - 2016/2/1

N2 - X-ray photoelectron spectroscopy (XPS) is useful for in situ analysis of catalytically active surfaces under reaction conditions. We conducted in situ observations of CO oxidation on Pd single-crystal surfaces with different orientations under near ambient pressure (NAP) conditions with XPS. In this short review we compare catalytically active surfaces of Pd with the different orientations. Both surface oxides and atomic oxygen chemisorbed on metallic surfaces can be active for CO oxidation depending on surface geometric structure. We propose similarity between the surface oxides and the chemisorbed oxygen from a viewpoint of availability of active oxygen. Catalytic activity of the metallic surface under NAP condition is also compared with that under ultrahigh vacuum conditions.

AB - X-ray photoelectron spectroscopy (XPS) is useful for in situ analysis of catalytically active surfaces under reaction conditions. We conducted in situ observations of CO oxidation on Pd single-crystal surfaces with different orientations under near ambient pressure (NAP) conditions with XPS. In this short review we compare catalytically active surfaces of Pd with the different orientations. Both surface oxides and atomic oxygen chemisorbed on metallic surfaces can be active for CO oxidation depending on surface geometric structure. We propose similarity between the surface oxides and the chemisorbed oxygen from a viewpoint of availability of active oxygen. Catalytic activity of the metallic surface under NAP condition is also compared with that under ultrahigh vacuum conditions.

KW - Ambient pressure XPS

KW - CO oxidation

KW - In-situ observation

UR - http://www.scopus.com/inward/record.url?scp=84947869890&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84947869890&partnerID=8YFLogxK

U2 - 10.1016/j.cattod.2015.05.016

DO - 10.1016/j.cattod.2015.05.016

M3 - Article

AN - SCOPUS:84947869890

VL - 260

SP - 14

EP - 20

JO - Catalysis Today

JF - Catalysis Today

SN - 0920-5861

ER -