Light-to-Hydrogen Improvement Based on Three-Factored Au@CeO2/Gr Hierarchical Photocatalysts
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Dung Van Dao | - |
dc.contributor.author | Choi, Hyuk | - |
dc.contributor.author | Nguyen, Thuy T. D. | - |
dc.contributor.author | Ki, Sang-Woo | - |
dc.contributor.author | Kim, Gyu-Cheol | - |
dc.contributor.author | Son, Hoki | - |
dc.contributor.author | Yang, Jin-Kyu | - |
dc.contributor.author | Yu, Yeon-Tae | - |
dc.contributor.author | Kim, Hyun You | - |
dc.contributor.author | Lee, In-Hwan | - |
dc.date.accessioned | 2022-08-11T06:40:59Z | - |
dc.date.available | 2022-08-11T06:40:59Z | - |
dc.date.created | 2022-08-10 | - |
dc.date.issued | 2022-05-24 | - |
dc.identifier.issn | 1936-0851 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/142828 | - |
dc.description.abstract | Recently, various attempts have been made for light-to-fuels conversion, often with limited performance. Herein we report active and lasting three-factored hierarchical photocatalysts consisting of plasmon Au, ceria semiconductor, and graphene conductor for hydrogen production. The Au@CeO2/Gr(2.0) entity (graphene outer shell thickness of 2.0 nm) under visible-light irradiation exhibits a colossal achievement (8.0 mu mol mg(cat)(-1) h(-1)), which is 2.2- and 14.3-fold higher than those of binary Au@CeO2 and free-standing CeO2 species, outperforming the currently available catalysts. Yet, it delivers a high maximum quantum yield efficiency of 38.4% at an incident wavelength of 560 nm. These improvements are unambiguously attributed to three indispensable effects: (1) the plasmon resonant energy is light-excited and transferred to produce hot electrons localizing near the surface of Au@CeO2, where (2) the high-surface-area Gr conductive shell will capture them to direct hydrogen evolution reactions, and (3) the active graphene hybridized on the defect-rich surface of Au@CeO2 favorably adsorbs hydrogen atoms, which all bring up thorough insight into the working of a ternary Au@CeO2/Gr catalyst system in terms of light-to-hydrogen conversion. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.subject | H-2 PRODUCTION | - |
dc.subject | GRAPHENE NANOSHEETS | - |
dc.subject | EVOLUTION ACTIVITY | - |
dc.subject | CATALYTIC-ACTIVITY | - |
dc.subject | CO OXIDATION | - |
dc.subject | SHELL | - |
dc.subject | CDS | - |
dc.subject | TIO2 | - |
dc.subject | NANOPARTICLES | - |
dc.subject | NANOCLUSTERS | - |
dc.title | Light-to-Hydrogen Improvement Based on Three-Factored Au@CeO2/Gr Hierarchical Photocatalysts | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, In-Hwan | - |
dc.identifier.doi | 10.1021/acsnano.2c00509 | - |
dc.identifier.scopusid | 2-s2.0-85130364397 | - |
dc.identifier.wosid | 000820295500001 | - |
dc.identifier.bibliographicCitation | ACS NANO, v.16, no.5, pp.7848 - 7860 | - |
dc.relation.isPartOf | ACS NANO | - |
dc.citation.title | ACS NANO | - |
dc.citation.volume | 16 | - |
dc.citation.number | 5 | - |
dc.citation.startPage | 7848 | - |
dc.citation.endPage | 7860 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.subject.keywordPlus | H-2 PRODUCTION | - |
dc.subject.keywordPlus | GRAPHENE NANOSHEETS | - |
dc.subject.keywordPlus | EVOLUTION ACTIVITY | - |
dc.subject.keywordPlus | CATALYTIC-ACTIVITY | - |
dc.subject.keywordPlus | CO OXIDATION | - |
dc.subject.keywordPlus | SHELL | - |
dc.subject.keywordPlus | CDS | - |
dc.subject.keywordPlus | TIO2 | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | NANOCLUSTERS | - |
dc.subject.keywordAuthor | plasmon | - |
dc.subject.keywordAuthor | core-shell | - |
dc.subject.keywordAuthor | ternary nanostructure | - |
dc.subject.keywordAuthor | light-to-hydrogen | - |
dc.subject.keywordAuthor | defect-rich surface | - |
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