Electrochemical Formation of Divalent Samarium Cation and Its Characteristics in LiCl-KCl Melt
DC Field | Value | Language |
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dc.contributor.author | Bae, Sang-Eun | - |
dc.contributor.author | Jung, Tae Sub | - |
dc.contributor.author | Cho, Young-Hwan | - |
dc.contributor.author | Kim, Jong-Yun | - |
dc.contributor.author | Kwak, Kyungwon | - |
dc.contributor.author | Park, Tae-Hong | - |
dc.date.accessioned | 2021-09-02T08:57:44Z | - |
dc.date.available | 2021-09-02T08:57:44Z | - |
dc.date.created | 2021-06-16 | - |
dc.date.issued | 2018-07-16 | - |
dc.identifier.issn | 0020-1669 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/74333 | - |
dc.description.abstract | The electrochemical reduction of trivalent samarium in a LiCl-KCl eutectic melt produced highly stable divalent samarium, whose electrochemical properties and electronic structure in the molten salt were investigated using cyclic voltammetry, UV-vis absorption spectroscopy, laser-induced emission spectroscopy, and density functional theory (DFT) calculations. Diffusion coefficients of Sm2+ and Sm3+ were electrochemically measured to be 0.92 X 10(-5) and 1.10 X 10(-5) cm(2)/s, respectively, and the standard apparent. potential of the Sm2+/3+ couple was estimated to be -0.82 V vs Ag vertical bar Ag+ at 450 degrees C. The spectroelectrochemical study demonstrated that the redox behavior of the samarium cations obeys the Nernst equation (E degrees' = -0.83 V, n = 1) and the trivalent samarium cation was successfully converted to the divalent cation having characteristic absorption bands at 380 and 530 nm with molar absorptivity values of 1470 and 810 M-1 cm(-1) respectively. Density function theory calculations for the divalent samarium complex revealed that the absorption signals originated from the 4f(6) to 4f(5)5d(1) transitions. Additionally, laser-induced emission measurements for the Sm cations in the LiCl-KCl matrix showed that the Sm3+ ion in the LiCl-KCl melt at 450 degrees C emitted an orange color of fluorescence, whereas a red colored emission was observed from the Sm2+ ion in the solidified LCl-KCl salt at room temperature. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.subject | DENSITY-FUNCTIONAL THEORY | - |
dc.subject | MOLECULAR-ORBITAL METHODS | - |
dc.subject | ABSORPTION-SPECTRA | - |
dc.subject | MOLTEN CHLORIDE | - |
dc.subject | IONIC LIQUIDS | - |
dc.subject | BASIS-SETS | - |
dc.subject | FLUORESCENCE | - |
dc.subject | LUMINESCENCE | - |
dc.subject | COMPLEXES | - |
dc.subject | STATE | - |
dc.title | Electrochemical Formation of Divalent Samarium Cation and Its Characteristics in LiCl-KCl Melt | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kwak, Kyungwon | - |
dc.identifier.doi | 10.1021/acs.inorgchem.8b00909 | - |
dc.identifier.scopusid | 2-s2.0-85049963041 | - |
dc.identifier.wosid | 000439250500034 | - |
dc.identifier.bibliographicCitation | INORGANIC CHEMISTRY, v.57, no.14, pp.8299 - 8306 | - |
dc.relation.isPartOf | INORGANIC CHEMISTRY | - |
dc.citation.title | INORGANIC CHEMISTRY | - |
dc.citation.volume | 57 | - |
dc.citation.number | 14 | - |
dc.citation.startPage | 8299 | - |
dc.citation.endPage | 8306 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Inorganic & Nuclear | - |
dc.subject.keywordPlus | DENSITY-FUNCTIONAL THEORY | - |
dc.subject.keywordPlus | MOLECULAR-ORBITAL METHODS | - |
dc.subject.keywordPlus | ABSORPTION-SPECTRA | - |
dc.subject.keywordPlus | MOLTEN CHLORIDE | - |
dc.subject.keywordPlus | IONIC LIQUIDS | - |
dc.subject.keywordPlus | BASIS-SETS | - |
dc.subject.keywordPlus | FLUORESCENCE | - |
dc.subject.keywordPlus | LUMINESCENCE | - |
dc.subject.keywordPlus | COMPLEXES | - |
dc.subject.keywordPlus | STATE | - |
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