『徳島大学 教育・研究者情報データベース (EDB)』---[学外] /
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EID=326470EID:326470, Map:0, LastModified:2017年8月29日(火) 20:35:42, Operator:[大家 隆弘], Avail:TRUE, Censor:0, Owner:[野口 直樹], Read:継承, Write:継承, Delete:継承.
種別 (必須): 学術論文 (審査論文) [継承]
言語 (必須): 英語 [継承]
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審査 (推奨): Peer Review [継承]
カテゴリ (推奨): 研究 [継承]
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著者 (必須): 1.野口 直樹 ([徳島大学.大学院社会産業理工学研究部.理工学域.応用化学系.物質機能化学分野]/[徳島大学.理工学部.理工学科.応用化学システムコース.物質機能化学講座])
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2. (英) Okuchi T. (日) (読)
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題名 (必須): (英) Self-diffusion of protons in H2O ice VII at high pressures: Anomaly around 10 GPa  (日)    [継承]
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要約 (任意): (英) The self-diffusion of ice VII in the pressure range of 5.5-17 GPa and temperature range of 400-425 K was studied using micro Raman spectroscopy and a diamond anvil cell. The diffusion was monitored by observing the distribution of isotope tracers: D2O and H2 (18)O. The diffusion coefficient of hydrogen reached a maximum value around 10 GPa. It was two orders of magnitude greater at 10 GPa than at 6 GPa. Hydrogen diffusion was much faster than oxygen diffusion, which indicates that protonic diffusion is the dominant mechanism for the diffusion of hydrogen in ice VII. This mechanism is in remarkable contrast to the self-diffusion in ice Ih that is dominated by an interstitial mechanism for the whole water molecule. An anomaly around 10 GPa in ice VII indicates that the rate-determining process for the proton diffusion changes from the diffusion of ionic defects to the diffusion of rotational defects, which was suggested by proton conductivity measurements and molecular dynamics simulations.  (日)    [継承]
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誌名 (必須): The Journal of Chemical Physics ([American Institute of Physics])
(pISSN: 0021-9606, eISSN: 1089-7690)

ISSN (任意): 1089-7690
ISSN: 0021-9606 (pISSN: 0021-9606, eISSN: 1089-7690)
Title: The Journal of chemical physics
Title(ISO): J Chem Phys
Publisher: American Institute of Physics
 (NLM Catalog  (Scopus  (CrossRef (Scopus information is found. [need login])
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(必須): 144 [継承]
(必須): 23 [継承]
(必須): 234503-1 234503-9 [継承]
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年月日 (必須): 西暦 2016年 6月 21日 (平成 28年 6月 21日) [継承]
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DOI (任意): 10.1063/1.4953688    (→Scopusで検索) [継承]
PMID (任意): 27334175    (→Scopusで検索) [継承]
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備考 (任意): 1.(英) Article.ELocationID: 10.1063/1.4953688  (日)    [継承]
2.(英) Article.PublicationTypeList.PublicationType: Journal Article  (日)    [継承]

標準的な表示

和文冊子 ● Naoki Noguchi and T. Okuchi : Self-diffusion of protons in H2O ice VII at high pressures: Anomaly around 10 GPa, The Journal of Chemical Physics, Vol.144, No.23, 234503-1-234503-9, 2016.
欧文冊子 ● Naoki Noguchi and T. Okuchi : Self-diffusion of protons in H2O ice VII at high pressures: Anomaly around 10 GPa, The Journal of Chemical Physics, Vol.144, No.23, 234503-1-234503-9, 2016.

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