Charge-state analysis of small barium-oxide clusters by x-ray absorption spectroscopy

Tetsuichiro Hayakawa, Masashi Arakawa, Kota Ando, Yuya Kiyomura, Tomoki Kawano, Akira Terasaki

研究成果: ジャーナルへの寄稿記事

抄録

Small barium-oxide clusters Ba m O + n are studied by mass spectrometry and x-ray absorption spectroscopy (XAS) to discuss stability of the clusters and oxidation state of constituent atoms. It is found that clusters with bulk composition, n = m, are stable, which can accommodate one or two excess oxygen atoms additionally as manifested by n = m + 1 and m + 2 species in the mass spectrum. XAS spectra of Ba 2 O + 2 and Ba 2 O + 3 reveal that the oxidation state of barium atoms stays at +2 (the bulk BaO value) even after binding excess oxygen, whereas spectral features originating from oxygen exhibit composition dependence. The present finding suggests that stoichiometric small barium-oxide clusters bind lessnegatively-charged oxygen atoms without change in the charge state of barium.

元の言語英語
記事番号134003
ジャーナルJournal of Physics Condensed Matter
31
発行部数13
DOI
出版物ステータス出版済み - 2 4 2019

Fingerprint

barium oxides
Barium
Absorption spectroscopy
x ray absorption
x ray spectroscopy
absorption spectroscopy
Oxygen
X rays
Atoms
Oxides
barium
oxygen atoms
Oxidation
oxidation
oxygen
guy wires
Chemical analysis
mass spectra
Mass spectrometry
atoms

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

これを引用

Charge-state analysis of small barium-oxide clusters by x-ray absorption spectroscopy. / Hayakawa, Tetsuichiro; Arakawa, Masashi; Ando, Kota; Kiyomura, Yuya; Kawano, Tomoki; Terasaki, Akira.

:: Journal of Physics Condensed Matter, 巻 31, 番号 13, 134003, 04.02.2019.

研究成果: ジャーナルへの寄稿記事

Hayakawa, Tetsuichiro ; Arakawa, Masashi ; Ando, Kota ; Kiyomura, Yuya ; Kawano, Tomoki ; Terasaki, Akira. / Charge-state analysis of small barium-oxide clusters by x-ray absorption spectroscopy. :: Journal of Physics Condensed Matter. 2019 ; 巻 31, 番号 13.
@article{86cf895e40cf472a9ba02996fe323dea,
title = "Charge-state analysis of small barium-oxide clusters by x-ray absorption spectroscopy",
abstract = "Small barium-oxide clusters Ba m O + n are studied by mass spectrometry and x-ray absorption spectroscopy (XAS) to discuss stability of the clusters and oxidation state of constituent atoms. It is found that clusters with bulk composition, n = m, are stable, which can accommodate one or two excess oxygen atoms additionally as manifested by n = m + 1 and m + 2 species in the mass spectrum. XAS spectra of Ba 2 O + 2 and Ba 2 O + 3 reveal that the oxidation state of barium atoms stays at +2 (the bulk BaO value) even after binding excess oxygen, whereas spectral features originating from oxygen exhibit composition dependence. The present finding suggests that stoichiometric small barium-oxide clusters bind lessnegatively-charged oxygen atoms without change in the charge state of barium.",
author = "Tetsuichiro Hayakawa and Masashi Arakawa and Kota Ando and Yuya Kiyomura and Tomoki Kawano and Akira Terasaki",
year = "2019",
month = "2",
day = "4",
doi = "10.1088/1361-648X/aafe18",
language = "English",
volume = "31",
journal = "Journal of Physics Condensed Matter",
issn = "0953-8984",
publisher = "IOP Publishing Ltd.",
number = "13",

}

TY - JOUR

T1 - Charge-state analysis of small barium-oxide clusters by x-ray absorption spectroscopy

AU - Hayakawa, Tetsuichiro

AU - Arakawa, Masashi

AU - Ando, Kota

AU - Kiyomura, Yuya

AU - Kawano, Tomoki

AU - Terasaki, Akira

PY - 2019/2/4

Y1 - 2019/2/4

N2 - Small barium-oxide clusters Ba m O + n are studied by mass spectrometry and x-ray absorption spectroscopy (XAS) to discuss stability of the clusters and oxidation state of constituent atoms. It is found that clusters with bulk composition, n = m, are stable, which can accommodate one or two excess oxygen atoms additionally as manifested by n = m + 1 and m + 2 species in the mass spectrum. XAS spectra of Ba 2 O + 2 and Ba 2 O + 3 reveal that the oxidation state of barium atoms stays at +2 (the bulk BaO value) even after binding excess oxygen, whereas spectral features originating from oxygen exhibit composition dependence. The present finding suggests that stoichiometric small barium-oxide clusters bind lessnegatively-charged oxygen atoms without change in the charge state of barium.

AB - Small barium-oxide clusters Ba m O + n are studied by mass spectrometry and x-ray absorption spectroscopy (XAS) to discuss stability of the clusters and oxidation state of constituent atoms. It is found that clusters with bulk composition, n = m, are stable, which can accommodate one or two excess oxygen atoms additionally as manifested by n = m + 1 and m + 2 species in the mass spectrum. XAS spectra of Ba 2 O + 2 and Ba 2 O + 3 reveal that the oxidation state of barium atoms stays at +2 (the bulk BaO value) even after binding excess oxygen, whereas spectral features originating from oxygen exhibit composition dependence. The present finding suggests that stoichiometric small barium-oxide clusters bind lessnegatively-charged oxygen atoms without change in the charge state of barium.

UR - http://www.scopus.com/inward/record.url?scp=85061240969&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85061240969&partnerID=8YFLogxK

U2 - 10.1088/1361-648X/aafe18

DO - 10.1088/1361-648X/aafe18

M3 - Article

C2 - 30641497

AN - SCOPUS:85061240969

VL - 31

JO - Journal of Physics Condensed Matter

JF - Journal of Physics Condensed Matter

SN - 0953-8984

IS - 13

M1 - 134003

ER -