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dc.contributor.authorChang, Hai-Chouen_US
dc.contributor.authorJiang, Jyh-Chiangen_US
dc.contributor.authorKuo, Meng-Hsiuen_US
dc.contributor.authorHsu, Ding-Tsaien_US
dc.contributor.authorLin, Sheng Hsienen_US
dc.date.accessioned2015-12-02T02:59:26Z-
dc.date.available2015-12-02T02:59:26Z-
dc.date.issued2015-01-01en_US
dc.identifier.issn1463-9076en_US
dc.identifier.urihttp://dx.doi.org/10.1039/c4cp04768ken_US
dc.identifier.urihttp://hdl.handle.net/11536/128196-
dc.description.abstractThe pressure-dependent interactions between the ionic liquid mixture ([MPI][I-1.5]) and nano-TiO2 surfaces have been studied up to 2.5 GPa. The results of infrared spectroscopic profiles of [MPI][I-1.5] and [MPI][I-1.5]- nano-TiO2 indicated that no appreciable changes in the C-H stretching bands with the addition of nano-TiO2 were observed under ambient pressure. As the pressure was elevated to 0.7 GPa, the C-H stretching absorption of [MPI][I-1.5] underwent band-narrowing and red-shifts in frequency. In contrast to the results of [MPI][I-1.5], the spectra of [MPI][I-1.5]- nano- TiO2 do not show dramatic changes under high pressures. A possible explanation for this observation is the formation of certain pressure-enhanced C-H...nano-TiO2 interactions around the imidazolium C-H and alkyl C-H groups. As imidazolium C-H...I- is replaced by the weaker imidazolium C-H...polyiodide, the splitting of the imidazolium C-H stretching bands was observed. The experimental results indicate that both nano-TiO2 and polyiodides are capable of disturbing the self-assembly of ionic liquids. This study suggests the possibility to tune the efficiency of dye-sensitized solar cells via a high pressure method.en_US
dc.language.isoen_USen_US
dc.titlePressure-enhanced surface interactions between nano-TiO2 and ionic liquid mixtures probed by high pressure IR spectroscopyen_US
dc.typeArticleen_US
dc.identifier.doi10.1039/c4cp04768ken_US
dc.identifier.journalPHYSICAL CHEMISTRY CHEMICAL PHYSICSen_US
dc.citation.volume17en_US
dc.citation.issue33en_US
dc.citation.spage21143en_US
dc.citation.epage21148en_US
dc.contributor.department應用化學系zh_TW
dc.contributor.departmentDepartment of Applied Chemistryen_US
dc.identifier.wosnumberWOS:000359596600010en_US
dc.citation.woscount0en_US
Appears in Collections:Articles