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dc.contributor.author이정호-
dc.date.accessioned2019-03-13T07:30:24Z-
dc.date.available2019-03-13T07:30:24Z-
dc.date.issued2015-05-
dc.identifier.citationJOURNAL OF MATERIALS CHEMISTRY A, v. 3, No. 24. Page. 12810-12819en_US
dc.identifier.issn2050-7488-
dc.identifier.issn2050-7496-
dc.identifier.urihttp://pubs.rsc.org/-/content/articlehtml/2015/ta/c5ta02656c-
dc.identifier.urihttps://repository.hanyang.ac.kr/handle/20.500.11754/100759-
dc.description.abstractElectrocatalytic hydrogen evolution using non-precious metals or metal-free catalysts is critically necessary because platinum-based electrocatalysts are greatly limited in scalable commercialization of hydrogen generation due to their high cost. Here, we report the facile synthesis of metal-free hybrid catalysts, in which graphitic carbon nitride (g-C3N4) is coupled with nanoporous graphene doped by S and Se. The S and Se co-doped hybrid catalyst (g-C3N4@S–Se-pGr) reveals superior electrocatalytic performances, including an exchange current density of 6.27 × 10−6 A cm−2, an on-set potential of 0.092 V, a Tafel slope of 86 mV dec−1, an adsorption free energy of −0.13 eV, and long-term stability comparable to those of commercial Pt/C catalysts. Volcano plots showing the hydrogen evolution activity versus adsorption free energy are also compatible with those of the conventional metal catalysts. Our strategy has the potential to allow a new paradigm for the development of high-performance metal-free electrocatalysts for energy conversion devices.en_US
dc.description.sponsorshipThis work was supported by a grant of the New & Renewable Energy Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) (no. 20123010010160) funded by the Korean Ministry of Trade, Industry, and Energy. This work was also supported by a National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIP) (no. 2011-0028604).en_US
dc.language.isoen_USen_US
dc.publisherROYAL SOC CHEMISTRYen_US
dc.subjectOXYGEN REDUCTIONen_US
dc.subjectEFFICIENT ELECTROCATALYSTen_US
dc.subjectMOLYBDENUM PHOSPHIDEen_US
dc.subjectMOS2 NANOSHEETSen_US
dc.subjectCATALYSTen_US
dc.subjectOXIDATIONen_US
dc.subjectNITROGEN; OXIDEen_US
dc.subjectNANOPARTICLESen_US
dc.subjectELECTRODESen_US
dc.titleElectrocatalytic hydrogen evolution using graphitic carbon nitride coupled with nanoporous graphene co-doped by S and Seen_US
dc.typeArticleen_US
dc.relation.volume3-
dc.identifier.doi10.1039/c5ta02656c-
dc.relation.page12810-12819-
dc.relation.journalJOURNAL OF MATERIALS CHEMISTRY A-
dc.contributor.googleauthorShinde, SS-
dc.contributor.googleauthorSami, A-
dc.contributor.googleauthorLee, JH-
dc.relation.code2015000269-
dc.sector.campusE-
dc.sector.daehakCOLLEGE OF ENGINEERING SCIENCES[E]-
dc.sector.departmentDEPARTMENT OF MATERIALS SCIENCE AND CHEMICAL ENGINEERING-
dc.identifier.pidjungho-
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COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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