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Tunneling Diffusion of Excess Protons in Amorphous Solid Water at 10 and 80 K
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Du Hyeong | - |
dc.contributor.author | Kang, Hani | - |
dc.contributor.author | Kang, Heon | - |
dc.date.accessioned | 2023-04-20T01:14:15Z | - |
dc.date.available | 2023-04-20T01:14:15Z | - |
dc.date.created | 2019-11-29 | - |
dc.date.issued | 2019-02 | - |
dc.identifier.citation | Journal of Physical Chemistry C, Vol.123 No.6, pp.3657-3663 | - |
dc.identifier.issn | 1932-7447 | - |
dc.identifier.uri | https://hdl.handle.net/10371/191297 | - |
dc.description.abstract | This work explores the plausibility of quantum tunneling of excess protons in amorphous solid water (ASW) at temperatures as low as 10 K. The transport of protons from a proton donor (HCl) to an acceptor (NH3) species located at a controlled separation distance in an ASW film was investigated at 10 and 80 K. The proton transfer efficiency was measured by quantitation of the yield of ammonium ions using reflection-absorption infrared spectroscopy. The average transport distance of excess protons in the ASW films was similar to 10 water molecules in the temperature range 10-80 K and showed no noticeable dependence on the temperature. On the other hand, the transport of protons along the surface of the ASW film was restricted to within a range of two water molecules at 10 K because of an energy barrier. The mobility of excess protons in the interior of ASW at temperatures close to 10 K indicated quantum tunneling of protons, most likely in the microscopic crystalline regions of the ASW samples. | - |
dc.language | 영어 | - |
dc.publisher | American Chemical Society | - |
dc.title | Tunneling Diffusion of Excess Protons in Amorphous Solid Water at 10 and 80 K | - |
dc.type | Article | - |
dc.identifier.doi | 10.1021/acs.jpcc.8b11829 | - |
dc.citation.journaltitle | Journal of Physical Chemistry C | - |
dc.identifier.wosid | 000459223200041 | - |
dc.identifier.scopusid | 2-s2.0-85061296503 | - |
dc.citation.endpage | 3663 | - |
dc.citation.number | 6 | - |
dc.citation.startpage | 3657 | - |
dc.citation.volume | 123 | - |
dc.description.isOpenAccess | Y | - |
dc.contributor.affiliatedAuthor | Kang, Heon | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.subject.keywordPlus | ISOTOPIC EXCHANGE | - |
dc.subject.keywordPlus | TEMPERATURE-DEPENDENCE | - |
dc.subject.keywordPlus | I-H | - |
dc.subject.keywordPlus | ICE | - |
dc.subject.keywordPlus | ACID | - |
dc.subject.keywordPlus | SURFACE | - |
dc.subject.keywordPlus | DISSOCIATION | - |
dc.subject.keywordPlus | ADSORPTION | - |
dc.subject.keywordPlus | HYDRONIUMS | - |
dc.subject.keywordPlus | MOLECULES | - |
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