Structures and CO-Adsorption Reactivities of Nickel Oxide Cluster Cations Studied by Ion Mobility Mass Spectrometry
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- Keijiro Ohshimo
- Department of Chemistry, Graduate School of Science, Tohoku University, 6−3 Aoba, Aramaki, Aoba-ku, Sendai 980−8578, Japan
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- Shohei Azuma
- Department of Chemistry, Graduate School of Science, Tohoku University, 6−3 Aoba, Aramaki, Aoba-ku, Sendai 980−8578, Japan
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- Tatsuya Komukai
- Department of Chemistry, Graduate School of Science, Tohoku University, 6−3 Aoba, Aramaki, Aoba-ku, Sendai 980−8578, Japan
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- Ryoichi Moriyama
- Department of Chemistry, Graduate School of Science, Tohoku University, 6−3 Aoba, Aramaki, Aoba-ku, Sendai 980−8578, Japan
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- Fuminori Misaizu
- Department of Chemistry, Graduate School of Science, Tohoku University, 6−3 Aoba, Aramaki, Aoba-ku, Sendai 980−8578, Japan
書誌事項
- 公開日
- 2015-01-09
- 資源種別
- journal article
- DOI
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- 10.1021/jp5115674
- 公開者
- American Chemical Society (ACS)
この論文をさがす
説明
Structures and CO-adsorption reactivities of nickel oxide cluster cations were investigated by ion mobility mass spectrometry. The series of NinOn–2+, NinOn–1+ and NinOn+ cluster cations were predominantly observed in a mass spectrum at high ion-injection energy into an ion-drift cell. From the arrival time distributions of NinOn+ and NinOn–1+ in the ion mobility spectrometry, structural transition from two-dimensional (2D) ring to three-dimensional (3D) compact structures was found at n = 5. In addition, 2D and 3D structural isomers were found to coexist for Ni5O5+, Ni6O5+ and Ni7O6+. By adding CO gas to buffer gas in the ion-drift cell, Ni4O3+ and Ni5O4+ cluster cations were found to be more reactive for the CO adsorption reactions than Ni4O4+ and Ni5O5+. Under the pseudo-first-order approximation, rate constants for CO-adsorption were determined to be (8.4 ± 0.7) × 10–11 cm3 molecule–1 s–1 for Ni4O3+ and (9.6 ± 0.8) × 10–11 cm3 molecule–1 s–1 for Ni5O4+. These rate constants are 2 orders of magnitude f...
収録刊行物
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- The Journal of Physical Chemistry C
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The Journal of Physical Chemistry C 119 (20), 11014-11021, 2015-01-09
American Chemical Society (ACS)
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詳細情報 詳細情報について
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- CRID
- 1360004233236403712
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- ISSN
- 19327455
- 19327447
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- 資料種別
- journal article
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- データソース種別
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- Crossref
- KAKEN
- OpenAIRE
