Self-catalyzed hydrogenation and dihydrogen adsorption on titanium carbide nanoparticles

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dc.contributor.authorZhao, YFko
dc.contributor.authorDillon, ACko
dc.contributor.authorKim, Yong-Hyunko
dc.contributor.authorHeben, MJko
dc.contributor.authorZhang, SBko
dc.date.accessioned2013-03-06T22:23:27Z-
dc.date.available2013-03-06T22:23:27Z-
dc.date.created2012-02-06-
dc.date.created2012-02-06-
dc.date.issued2006-07-
dc.identifier.citationCHEMICAL PHYSICS LETTERS, v.425, no.4-6, pp.273 - 277-
dc.identifier.issn0009-2614-
dc.identifier.urihttp://hdl.handle.net/10203/88675-
dc.description.abstractThe adsorptions of H(2) on metallocarbohedrene Ti(8)Cl(2), and nanocrystal Ti(14)C(13) are studied using first-principles calculations. The Ti atoms serve as catalyst to mediate the dissociation of H(2) to form carbon hydrides, which otherwise would not form. Ti atoms on the surface of the nanocarbides are capable of coordinating with multiple dihydrogen ligands. High hydrogen capacities, 6.1 wt% for Ti(8)C(12) and 7.7 wt% for Ti(14)C(13), were obtained with more than 80% of the H bound in the energy range between 0.17 and 0.89 eV/ H(2). Once the nanoparticles form a macroscopic material, the amount of chemisorbed hydrogen decreases, but additional hydrogen molecules is then up-taken through physisorption. Our study suggests that TiC nanoparticles have potential for H storage at near ambient conditions. (c) 2006 Elsevier B.V. All rights reserved.-
dc.languageEnglish-
dc.publisherELSEVIER SCIENCE BV-
dc.subjectGENERALIZED GRADIENT APPROXIMATION-
dc.subjectELECTRONIC-STRUCTURES-
dc.subjectAB-INITIO-
dc.subjectMETAL-
dc.subjectCLUSTERS-
dc.subjectSTORAGE-
dc.subjectTI8C12-
dc.subjectCARBON-
dc.subjectMETALLOCARBOHEDRENES-
dc.subjectNANOCRYSTALS-
dc.titleSelf-catalyzed hydrogenation and dihydrogen adsorption on titanium carbide nanoparticles-
dc.typeArticle-
dc.identifier.wosid000238799200019-
dc.identifier.scopusid2-s2.0-33745121210-
dc.type.rimsART-
dc.citation.volume425-
dc.citation.issue4-6-
dc.citation.beginningpage273-
dc.citation.endingpage277-
dc.citation.publicationnameCHEMICAL PHYSICS LETTERS-
dc.identifier.doi10.1016/j.cplett.2006.05.034-
dc.contributor.localauthorKim, Yong-Hyun-
dc.contributor.nonIdAuthorZhao, YF-
dc.contributor.nonIdAuthorDillon, AC-
dc.contributor.nonIdAuthorHeben, MJ-
dc.contributor.nonIdAuthorZhang, SB-
dc.type.journalArticleArticle-
dc.subject.keywordPlusGENERALIZED GRADIENT APPROXIMATION-
dc.subject.keywordPlusELECTRONIC-STRUCTURES-
dc.subject.keywordPlusAB-INITIO-
dc.subject.keywordPlusMETAL-
dc.subject.keywordPlusCLUSTERS-
dc.subject.keywordPlusSTORAGE-
dc.subject.keywordPlusTI8C12-
dc.subject.keywordPlusCARBON-
dc.subject.keywordPlusMETALLOCARBOHEDRENES-
dc.subject.keywordPlusNANOCRYSTALS-
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