Aerosol synthesis of molybdenum diselenide-reduced graphene oxide composite with empty nanovoids and enhanced hydrogen evolution reaction performances
DC Field | Value | Language |
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dc.contributor.author | Park, Seung-Keun | - |
dc.contributor.author | Park, Gi Dae | - |
dc.contributor.author | Ko, Dongjin | - |
dc.contributor.author | Kang, Yun Chan | - |
dc.contributor.author | Piao, Yuanzhe | - |
dc.date.accessioned | 2021-09-03T06:22:58Z | - |
dc.date.available | 2021-09-03T06:22:58Z | - |
dc.date.created | 2021-06-16 | - |
dc.date.issued | 2017-05-01 | - |
dc.identifier.issn | 1385-8947 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/83506 | - |
dc.description.abstract | MoSe2-reduced graphene oxide (rGO) composite powders with unique structures containing empty nanovoids and excellent hydrogen evolution reaction (HER) performances were prepared using a pilot scale spray-drying process. One-step post-treatment of the spray-dried powders produced the macroporous MoSe2-rGO composite with empty nanovoids through an intermediate MoO3-Se-GO composite. Ultrafine MoSe2 nanocrystals, which consisted of a few layers and were several" nanometers in size, were uniformly dispersed on the surfaces of the MoSe2-rGO composite powders with the optimal rGO contents. The MoSe2-rGO-M composite (20 wt% rGO) had the optimized porous structure with a uniform distribution of MoSe2 nanocrystals and enough the rGO content for a fast electron transport, and thus exhibited the highest HER activity. The MoSe2-rGO-M composite powders exhibited a current density of 10 mA cm(-2) at a small overpotential of 0.21 V, which was lower than that of bare MoSe2 (10 mA cm (-2) at 0.31 V). The Tafel slopes for bare MoSe2 and MoSe2-rGO-M composite powders were 120 and 57 mV dec(-1), respectively. The synergistic effects of rGO sheets and MoSe2 nanocrystals and the unique porous structure resulted in outstanding HER performance with a small Tafel slope and overpotential. (C) 2017 Elsevier B.V. All rights reserved. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.subject | LITHIUM STORAGE PROPERTIES | - |
dc.subject | MOS2 NANOSHEETS | - |
dc.subject | EFFICIENT ELECTROCATALYSTS | - |
dc.subject | HYBRID NANOSTRUCTURES | - |
dc.subject | ULTRATHIN NANOSHEETS | - |
dc.subject | CATALYTIC-ACTIVITY | - |
dc.subject | BINDER-FREE | - |
dc.subject | NANOPARTICLES | - |
dc.subject | MOSE2/GRAPHENE | - |
dc.subject | POWDERS | - |
dc.title | Aerosol synthesis of molybdenum diselenide-reduced graphene oxide composite with empty nanovoids and enhanced hydrogen evolution reaction performances | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kang, Yun Chan | - |
dc.identifier.doi | 10.1016/j.cej.2017.01.032 | - |
dc.identifier.scopusid | 2-s2.0-85010433860 | - |
dc.identifier.wosid | 000395212300036 | - |
dc.identifier.bibliographicCitation | CHEMICAL ENGINEERING JOURNAL, v.315, pp.355 - 363 | - |
dc.relation.isPartOf | CHEMICAL ENGINEERING JOURNAL | - |
dc.citation.title | CHEMICAL ENGINEERING JOURNAL | - |
dc.citation.volume | 315 | - |
dc.citation.startPage | 355 | - |
dc.citation.endPage | 363 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalWebOfScienceCategory | Engineering, Environmental | - |
dc.relation.journalWebOfScienceCategory | Engineering, Chemical | - |
dc.subject.keywordPlus | LITHIUM STORAGE PROPERTIES | - |
dc.subject.keywordPlus | MOS2 NANOSHEETS | - |
dc.subject.keywordPlus | EFFICIENT ELECTROCATALYSTS | - |
dc.subject.keywordPlus | HYBRID NANOSTRUCTURES | - |
dc.subject.keywordPlus | ULTRATHIN NANOSHEETS | - |
dc.subject.keywordPlus | CATALYTIC-ACTIVITY | - |
dc.subject.keywordPlus | BINDER-FREE | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | MOSE2/GRAPHENE | - |
dc.subject.keywordPlus | POWDERS | - |
dc.subject.keywordAuthor | Molybdenum diselenide | - |
dc.subject.keywordAuthor | Porous structure | - |
dc.subject.keywordAuthor | Reduced graphene oxide | - |
dc.subject.keywordAuthor | Hydrogen evolution reaction | - |
dc.subject.keywordAuthor | Spray drying | - |
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