Tunneling Diffusion of Excess Protons in Amorphous Solid Water at 10 and 80 K
DC Field | Value | Language |
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dc.contributor.author | Lee, Du Hyeong | - |
dc.contributor.author | Kang, Hani | - |
dc.contributor.author | Kang, Heon | - |
dc.date.accessioned | 2020-04-24T05:45:41Z | - |
dc.date.available | 2020-04-24T05:45:41Z | - |
dc.date.issued | 2019-02 | - |
dc.identifier.uri | https://repository.kopri.re.kr/handle/201206/10503 | - |
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 K 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 ~10 water molecules in the temperature range of 10-80 K and showed no noticeable dependence on the temperature. On the other hand, the transport of protons along the surface of 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. | en_US |
dc.format | application/pdf | - |
dc.language | English | - |
dc.language.iso | en | en_US |
dc.subject | Chemistry | en_US |
dc.subject | Science & Technology | en_US |
dc.subject | Materials Science | en_US |
dc.title | Tunneling Diffusion of Excess Protons in Amorphous Solid Water at 10 and 80 K | en_US |
dc.title.alternative | 10 K와 80 K에서 비결정성 얼음 내 초과 양성자의 터널링 확산 | en_US |
dc.type | Article | en_US |
dc.identifier.bibliographicCitation | Lee, Du Hyeong, Kang, Hani, Kang, Heon. 2019. "Tunneling Diffusion of Excess Protons in Amorphous Solid Water at 10 and 80 K". <em>JOURNAL OF PHYSICAL CHEMISTRY C</em>, 123(6): 3657-3663. | - |
dc.citation.title | JOURNAL OF PHYSICAL CHEMISTRY C | en_US |
dc.citation.volume | 123 | en_US |
dc.citation.number | 6 | en_US |
dc.identifier.doi | 10.1021/acs.jpcc.8b11829 | - |
dc.citation.startPage | 3657 | en_US |
dc.citation.endPage | 3663 | en_US |
dc.description.articleClassification | SCI | - |
dc.description.jcrRate | JCR 2017:18.947 | en_US |
dc.identifier.localId | 2019-0096 | - |
dc.identifier.scopusid | 2-s2.0-85061296503 | - |
dc.identifier.wosid | 000459223200041 | - |
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