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Min, Seung Kyu
Theoretical/Computational Chemistry Group for Excited State Phenomena
Research Interests
  • Excited state dynamics, photosynthesis, solarcell, light-driven molecular machine

Effect of Pt Crystal Surface on Hydrogenation of Monolayer h-BN and Its Conversion to Graphene

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dc.contributor.author Kim, Minsu ko
dc.contributor.author Moon, Sung Wook ko
dc.contributor.author Kim, Gwangwoo ko
dc.contributor.author Yoon, Seong In ko
dc.contributor.author Kim, Kicheol ko
dc.contributor.author Min, Seung Kyu ko
dc.contributor.author Shin, Hyeon Suk ko
dc.date.available 2020-07-14T06:03:24Z -
dc.date.created 2020-07-10 ko
dc.date.issued 2020-06 ko
dc.identifier.citation CHEMISTRY OF MATERIALS, v.32, no.11, pp.4584 - 4590 ko
dc.identifier.issn 0897-4756 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/33080 -
dc.description.abstract The proximity effect of physical quantities like catalysis and wettability is a very interesting and fundamental topic to be studied. However, studies on the catalyst proximity-induced hydrogenation of h-BN are limited. In this study, we report the proximity effect of a Pt substrate on the hydrogenation of h-BN. We analyzed the degree of hydrogenation of monolayer h-BN (1L h-BN) on various Pt single-crystal surfaces via hydrogen plasma treatment; the degree of hydrogenation follows the order Pt(110) < Pt(111) < Pt(100). It was revealed that the catalytic activity of the Pt substrate inducing hydrogenation is related to the difference in the adsorption energy of hydrogen owing to the Pt surface orientation. The corrugated texture of h-BN was formed by the arrangement of h-BN on the Pt surface, referred to as the h-BN nanomesh. The h-BN nanomesh on the Pt surface consists of two regions: the "pores" are regions close to the substrate and the "wires" are loosely bound to the substrate. Finally, our experimental and density functional theory calculation results indicated that hydrogenation proceeded on the top side of the h-BN layer in the pore regions and is affected by Pt crystal surfaces. The same tendency was also observed during the conversion of h-BN to graphene on three different Pt crystals, indicating that the conversion process is related to the proximity effect to the Pt substrate. ko
dc.language 영어 ko
dc.publisher AMER CHEMICAL SOC ko
dc.title Effect of Pt Crystal Surface on Hydrogenation of Monolayer h-BN and Its Conversion to Graphene ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-85088389490 ko
dc.identifier.wosid 000541499600019 ko
dc.type.rims ART ko
dc.identifier.doi 10.1021/acs.chemmater.0c00736 ko
dc.identifier.url https://pubs.acs.org/doi/10.1021/acs.chemmater.0c00736 ko
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