Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 최진호 | - |
dc.contributor.author | 최고은 | - |
dc.date.accessioned | 2019-07-22T16:30:47Z | - |
dc.date.available | 2019-07-22T16:30:47Z | - |
dc.date.issued | 2019 | - |
dc.identifier.issn | 0926-3373 | - |
dc.identifier.other | OAK-25081 | - |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/250160 | - |
dc.description.abstract | Industrial demands for sustainable and renewable energy resources have inspired studies on photonic and electronic properties of graphitic-carbon nitride (g-C3N4) as a promising photocatalyst without precious metal. The absorption and the yield by metal-free pristine g-C3N4 are, however, still limited with hydrogen/oxygen evolution reaction (HER/OER) mostly around ultraviolet-light. Here, we propose the graphene-decorated g-C3N4 as a metal-free photocatalyst under visible-light, based on our atomic-scale measurements and calculations. The g-C3N4 nanosheets on highly-oriented pyrolytic graphite (HOPG) exhibit band-gaps appropriate for visible-light absorption and work-functions tuned for band alignments to supply electrons and holes for HER/OER. Scanning probe microscopy (SPM) measurements for local density of states (LDOS) in atomic scale and work-functions in nanometer scale with ab initio calculations confirmed the various electronic transitions for each nitrogen and carbon atom in different atomic registries. The graphene-decorated g-C3N4, therefore, could provide a breakthrough enabling the efficient water-splitting reactions under visible-light without precious metal. © 2019 | - |
dc.language | English | - |
dc.publisher | Elsevier B.V. | - |
dc.subject | Graphene | - |
dc.subject | Graphitic carbon nitride | - |
dc.subject | Hydrogen evolution reaction | - |
dc.subject | Oxygen evolution reaction | - |
dc.subject | Scanning tunneling spectroscopy | - |
dc.title | Atomic and electronic structures of graphene-decorated graphitic carbon nitride (g-C3N4) as a metal-free photocatalyst under visible-light | - |
dc.type | Article | - |
dc.relation.volume | 256 | - |
dc.relation.index | SCIE | - |
dc.relation.index | SCOPUS | - |
dc.relation.journaltitle | Applied Catalysis B: Environmental | - |
dc.identifier.doi | 10.1016/j.apcatb.2019.117850 | - |
dc.identifier.wosid | WOS:000483451200054 | - |
dc.identifier.scopusid | 2-s2.0-85067785889 | - |
dc.author.google | Jeong T. | - |
dc.author.google | Piao H. | - |
dc.author.google | Park S. | - |
dc.author.google | Yang J.-H. | - |
dc.author.google | Choi G. | - |
dc.author.google | Wu Q. | - |
dc.author.google | Kang H. | - |
dc.author.google | Woo H.J. | - |
dc.author.google | Jung S.J. | - |
dc.author.google | Kim H. | - |
dc.author.google | Shin B.G. | - |
dc.author.google | Kim Y. | - |
dc.author.google | Hwang E.H. | - |
dc.author.google | Choy J.-H. | - |
dc.author.google | Song Y.J. | - |
dc.contributor.scopusid | 최진호(8044393000) | - |
dc.contributor.scopusid | 최고은(36622874700) | - |
dc.date.modifydate | 20220412094721 | - |