Soft-Template Simple Synthesis of Ordered Mesoporous Titanium Nitride-Carbon Nanocomposite for High Performance Dye-Sensitized Solar Cell Counter Electrodes

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dc.contributor.authorRamasamy, Easwaramoorthiko
dc.contributor.authorJo, Changshinko
dc.contributor.authorAnthonysamy, Arockiamko
dc.contributor.authorJeong, Inyoungko
dc.contributor.authorKim, Jin Konko
dc.contributor.authorLee, Jinwooko
dc.date.accessioned2018-08-20T08:24:28Z-
dc.date.available2018-08-20T08:24:28Z-
dc.date.created2018-08-08-
dc.date.created2018-08-08-
dc.date.issued2012-05-
dc.identifier.citationCHEMISTRY OF MATERIALS, v.24, no.9, pp.1575 - 1582-
dc.identifier.issn0897-4756-
dc.identifier.urihttp://hdl.handle.net/10203/245082-
dc.description.abstractOrdered mesoporous titanium nitride-carbon (denoted as OM TiN-C) nanocomposite with high surface area (389 m(2) g(-1)) and uniform hexagonal mesopores (ca. 5.5 nm) was facilely synthesized via the soft-template method. As a structure-directing agent, Pluronic F127 triblock copolymer formed an ordered structure with inorganic precursors, resol polymer, and prehydrolyzed TiCl4, followed by a successive heating at 700 degrees C under nitrogen and ammonia flow. In this study, the amorphous carbon within the parent OM TiO2-C acted as a rigid support, preventing structural collapse during the conversion process of TiO2 nanocrystals to TiN nanocrystals. The OM TiN-C was then successfully applied as counter electrode material in dye-sensitized solar cells (DSCs). The organic electrolyte disulfide/thiolate (T-2/T-) was introduced to study the electrocatalytic property of the OM TiN-C nanocomposite. Because of the existence of TiN nanocrystals and the defect sites of the amorphous carbon, the DSCs using OM TiN-C as a counter electrode showed 6.71% energy conversion efficiency (platinum counter electrode DSCs: 3.32%) in the organic electrolyte system (T-2/T-). Furthermore, the OM TiN-C counter electrode based DSCs showed an energy conversion efficiency of 8.41%, whereas the DSCs using platinum as a counter electrode showed a conversion efficiency of only 8.0% in an iodide electrolyte system. The superior performance of OM TiN-C counter electrode resulted from the low charge transfer resistance, enhanced electrical conductivity, and abundance of active sites of the OM TIN-C nanocomposite. Moreover, OM TiN-C counter electrode showed better chemical stability in organic electrolyte compared with the platinum counter electrode.-
dc.languageEnglish-
dc.publisherAMER CHEMICAL SOC-
dc.subjectTRANSITION-METAL CARBIDES-
dc.subjectSURFACE-AREA-
dc.subjectTHIN-FILMS-
dc.subjectCONVERSION EFFICIENCY-
dc.subjectCATALYTIC-PROPERTIES-
dc.subjectHALIDE APPROACH-
dc.subjectLOW-COST-
dc.subjectNANOPARTICLES-
dc.subjectSILICA-
dc.subjectELECTROLYTES-
dc.titleSoft-Template Simple Synthesis of Ordered Mesoporous Titanium Nitride-Carbon Nanocomposite for High Performance Dye-Sensitized Solar Cell Counter Electrodes-
dc.typeArticle-
dc.identifier.wosid000303628100006-
dc.identifier.scopusid2-s2.0-84860761619-
dc.type.rimsART-
dc.citation.volume24-
dc.citation.issue9-
dc.citation.beginningpage1575-
dc.citation.endingpage1582-
dc.citation.publicationnameCHEMISTRY OF MATERIALS-
dc.identifier.doi10.1021/cm203672g-
dc.contributor.localauthorLee, Jinwoo-
dc.contributor.nonIdAuthorRamasamy, Easwaramoorthi-
dc.contributor.nonIdAuthorJo, Changshin-
dc.contributor.nonIdAuthorAnthonysamy, Arockiam-
dc.contributor.nonIdAuthorJeong, Inyoung-
dc.contributor.nonIdAuthorKim, Jin Kon-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordAuthormesoporous-
dc.subject.keywordAuthornanocomposite-
dc.subject.keywordAuthorelectrocatalyst-
dc.subject.keywordAuthordye-sensitized solar cell-
dc.subject.keywordAuthororganic electrolyte-
dc.subject.keywordPlusTRANSITION-METAL CARBIDES-
dc.subject.keywordPlusSURFACE-AREA-
dc.subject.keywordPlusTHIN-FILMS-
dc.subject.keywordPlusCONVERSION EFFICIENCY-
dc.subject.keywordPlusCATALYTIC-PROPERTIES-
dc.subject.keywordPlusHALIDE APPROACH-
dc.subject.keywordPlusLOW-COST-
dc.subject.keywordPlusNANOPARTICLES-
dc.subject.keywordPlusSILICA-
dc.subject.keywordPlusELECTROLYTES-
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