Surface electronic structures of lithium nickel oxide solid solutions: Selective methane oxidation

T. Miyazaki; R. Sumii; H. Tanaka; K. Amemiya; S. Hino

doi:10.1007/s11164-014-1820-5

Surface electronic structures of lithium nickel oxide solid solutions: Selective methane oxidation

T. Miyazaki, R. Sumii, H. Tanaka, K. Amemiya, S. Hino

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

Ultraviolet photoelectron spectra (UPS) of lithium nickel oxide (Li _x Ni_2-x O₂, 0 < x 1.0) solid solution were measured using a synchrotron radiation light source. The upper valence UPS are confirmed to consist of five structures for E < 15 eV. The electronic density of two O2p states changed as the compositional ratio of Li and Ni. After a contact reaction of LiNiO and methane gas, the peak intensity of one of two O2p states decreased remarkably. It was found that the surface oxygen at the lower binding energy was selectively contributed to dissociate σ-bond between carbon and hydrogen of methane. ;copy; 2014 Springer Science+Business Media Dordrecht.

Original language	English
Pages (from-to)	7405-7412
Number of pages	8
Journal	Research on Chemical Intermediates
Volume	41
Issue number	10
DOIs	https://doi.org/10.1007/s11164-014-1820-5
Publication status	Published - Oct 1 2015
Externally published	Yes

Keywords

Lithium nickel oxides
Oxidative coupling of methane
Selective oxidation
Ultraviolet photoemission spectroscopy
Valence band structure

ASJC Scopus subject areas

Chemistry(all)

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10.1007/s11164-014-1820-5

Cite this

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title = "Surface electronic structures of lithium nickel oxide solid solutions: Selective methane oxidation",

abstract = "Ultraviolet photoelectron spectra (UPS) of lithium nickel oxide (Li x Ni2-x O2, 0 < x 1.0) solid solution were measured using a synchrotron radiation light source. The upper valence UPS are confirmed to consist of five structures for E < 15 eV. The electronic density of two O2p states changed as the compositional ratio of Li and Ni. After a contact reaction of LiNiO and methane gas, the peak intensity of one of two O2p states decreased remarkably. It was found that the surface oxygen at the lower binding energy was selectively contributed to dissociate σ-bond between carbon and hydrogen of methane. ;copy; 2014 Springer Science+Business Media Dordrecht.",

keywords = "Lithium nickel oxides, Oxidative coupling of methane, Selective oxidation, Ultraviolet photoemission spectroscopy, Valence band structure",

author = "T. Miyazaki and R. Sumii and H. Tanaka and K. Amemiya and S. Hino",

year = "2015",

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doi = "10.1007/s11164-014-1820-5",

language = "English",

volume = "41",

pages = "7405--7412",

journal = "Research on Chemical Intermediates",

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TY - JOUR

T1 - Surface electronic structures of lithium nickel oxide solid solutions

T2 - Selective methane oxidation

AU - Miyazaki, T.

AU - Sumii, R.

AU - Tanaka, H.

AU - Amemiya, K.

AU - Hino, S.

PY - 2015/10/1

Y1 - 2015/10/1

N2 - Ultraviolet photoelectron spectra (UPS) of lithium nickel oxide (Li x Ni2-x O2, 0 < x 1.0) solid solution were measured using a synchrotron radiation light source. The upper valence UPS are confirmed to consist of five structures for E < 15 eV. The electronic density of two O2p states changed as the compositional ratio of Li and Ni. After a contact reaction of LiNiO and methane gas, the peak intensity of one of two O2p states decreased remarkably. It was found that the surface oxygen at the lower binding energy was selectively contributed to dissociate σ-bond between carbon and hydrogen of methane. ;copy; 2014 Springer Science+Business Media Dordrecht.

AB - Ultraviolet photoelectron spectra (UPS) of lithium nickel oxide (Li x Ni2-x O2, 0 < x 1.0) solid solution were measured using a synchrotron radiation light source. The upper valence UPS are confirmed to consist of five structures for E < 15 eV. The electronic density of two O2p states changed as the compositional ratio of Li and Ni. After a contact reaction of LiNiO and methane gas, the peak intensity of one of two O2p states decreased remarkably. It was found that the surface oxygen at the lower binding energy was selectively contributed to dissociate σ-bond between carbon and hydrogen of methane. ;copy; 2014 Springer Science+Business Media Dordrecht.

KW - Lithium nickel oxides

KW - Oxidative coupling of methane

KW - Selective oxidation

KW - Ultraviolet photoemission spectroscopy

KW - Valence band structure

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U2 - 10.1007/s11164-014-1820-5

DO - 10.1007/s11164-014-1820-5

M3 - Article

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SN - 0922-6168

VL - 41

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EP - 7412

JO - Research on Chemical Intermediates

JF - Research on Chemical Intermediates

IS - 10

ER -

Surface electronic structures of lithium nickel oxide solid solutions: Selective methane oxidation

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Keywords

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