A Strategy for Synthesis of Carbon Nitride Induced Chemically Doped 2D MXene for High-Performance Supercapacitor Electrodes

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dc.contributor.authorYoon, Yeoheungko
dc.contributor.authorLee, Minheko
dc.contributor.authorKim, Seong Kuko
dc.contributor.authorBae, Garamko
dc.contributor.authorSong, Wooseokko
dc.contributor.authorMyung, Sungko
dc.contributor.authorLim, Jongsunko
dc.contributor.authorLee, Sun Sookko
dc.contributor.authorZyung, Taehyoungko
dc.contributor.authorAn, Ki-Seokko
dc.date.accessioned2018-06-19T08:29:47Z-
dc.date.available2018-06-19T08:29:47Z-
dc.date.created2018-06-18-
dc.date.created2018-06-18-
dc.date.issued2018-05-
dc.identifier.citationADVANCED ENERGY MATERIALS, v.8, no.15-
dc.identifier.issn1614-6832-
dc.identifier.urihttp://hdl.handle.net/10203/242633-
dc.description.abstractA step-by-step strategy is reported for improving capacitance of supercapacitor electrodes by synthesizing nitrogen-doped 2D Ti2CTx induced by polymeric carbon nitride (p-C3N4), which simultaneously acts as a nitrogen source and intercalant. The NH2CN (cyanamide) can form p-C3N4 on the surface of Ti(2)CTx nanosheets by a condensation reaction at 500-700 degrees C. The p-C3N4 and Ti(2)CTx complexes are then heat-treated to obtain nitrogen-doped Ti2CTx nanosheets. The triazine-based p-C3N4 decomposes above 700 degrees C; thus, the nitrogen species can be surely doped into the internal carbon layer and/or defect site of Ti2CTx nanosheets at 900 degrees C. The extended interlayer distance and c-lattice parameters (c-LPs of 28.66 angstrom) of Ti2CTx prove that the p-C3N4 grown between layers delaminate the nanosheets of Ti2CTx during the doping process. Moreover, 15.48% nitrogen doping in Ti2CTx improves the electrochemical performance and energy storage ability. Due to the synergetic effect of delaminated structures and heteroatom compositions, N-doped Ti2CTx shows excellent characteristics as an electrochemical capacitor electrode, such as perfectly rectangular cyclic voltammetry results (CVs, R-2 = 0.9999), high capacitance (327 F g(-1) at 1 A g(-1), increased by approximate to 140% over pristine-Ti2CTx), and stable long cyclic performance (96.2% capacitance retention after 5000 cycles) at high current density (5 A g(-1)).-
dc.languageEnglish-
dc.publisherWILEY-V C H VERLAG GMBH-
dc.subject2-DIMENSIONAL TITANIUM CARBIDE-
dc.subjectHIGH VOLUMETRIC CAPACITANCE-
dc.subjectTRANSITION-METAL CARBIDES-
dc.subjectREDUCED GRAPHENE OXIDE-
dc.subjectELECTROCHEMICAL CAPACITORS-
dc.subjectENERGY-STORAGE-
dc.subjectTHIN-FILMS-
dc.subjectNITROGEN-
dc.subjectNANOSHEETS-
dc.subjectEVOLUTION-
dc.titleA Strategy for Synthesis of Carbon Nitride Induced Chemically Doped 2D MXene for High-Performance Supercapacitor Electrodes-
dc.typeArticle-
dc.identifier.wosid000434031400015-
dc.identifier.scopusid2-s2.0-85041137232-
dc.type.rimsART-
dc.citation.volume8-
dc.citation.issue15-
dc.citation.publicationnameADVANCED ENERGY MATERIALS-
dc.identifier.doi10.1002/aenm.201703173-
dc.contributor.localauthorYoon, Yeoheung-
dc.contributor.nonIdAuthorLee, Minhe-
dc.contributor.nonIdAuthorKim, Seong Ku-
dc.contributor.nonIdAuthorBae, Garam-
dc.contributor.nonIdAuthorSong, Wooseok-
dc.contributor.nonIdAuthorMyung, Sung-
dc.contributor.nonIdAuthorLim, Jongsun-
dc.contributor.nonIdAuthorLee, Sun Sook-
dc.contributor.nonIdAuthorZyung, Taehyoung-
dc.contributor.nonIdAuthorAn, Ki-Seok-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordAuthor2D materials-
dc.subject.keywordAuthorhigh-performance-
dc.subject.keywordAuthorMXenes-
dc.subject.keywordAuthornitrogen doping-
dc.subject.keywordAuthorsupercapacitors-
dc.subject.keywordPlus2-DIMENSIONAL TITANIUM CARBIDE-
dc.subject.keywordPlusHIGH VOLUMETRIC CAPACITANCE-
dc.subject.keywordPlusTRANSITION-METAL CARBIDES-
dc.subject.keywordPlusREDUCED GRAPHENE OXIDE-
dc.subject.keywordPlusELECTROCHEMICAL CAPACITORS-
dc.subject.keywordPlusENERGY-STORAGE-
dc.subject.keywordPlusTHIN-FILMS-
dc.subject.keywordPlusNITROGEN-
dc.subject.keywordPlusNANOSHEETS-
dc.subject.keywordPlusEVOLUTION-
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