Defect-rich N-doped CeO2 supported by N-doped graphene as a metal-free plasmonic hydrogen evolution photocatalyst
DC Field | Value | Language |
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dc.contributor.author | Van Dao, Dung | - |
dc.contributor.author | Jung, Hyun Dong | - |
dc.contributor.author | Nguyen, Thuy T. D. | - |
dc.contributor.author | Ki, Sang-Woo | - |
dc.contributor.author | Son, Hoki | - |
dc.contributor.author | Bae, Kang-Bin | - |
dc.contributor.author | Le, Thanh Duc | - |
dc.contributor.author | Cho, Yeong-Hoon | - |
dc.contributor.author | Yang, Jin-Kyu | - |
dc.contributor.author | Yu, Yeon-Tae | - |
dc.contributor.author | Back, Seoin | - |
dc.contributor.author | Lee, In-Hwan | - |
dc.date.accessioned | 2022-03-02T02:42:32Z | - |
dc.date.available | 2022-03-02T02:42:32Z | - |
dc.date.created | 2022-02-09 | - |
dc.date.issued | 2021-04-28 | - |
dc.identifier.issn | 2050-7488 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/137446 | - |
dc.description.abstract | Heteroatom doping into metal oxides advantageously modulates optoelectronic properties and provides promising possibilities for efficient light-to-energy conversion. Herein, nitrogen-doped ceria (N-CeO2) nanoparticles are prepared and then coupled with nitrogen-doped graphene (N-Gr) to create an active and long-lasting N-CeO2/N-Gr heterocatalyst. Optoelectronic features of N-doping materials (e.g., plasmon) are significantly improved toward the visible-light region, particularly for 3.9% N-CeO2/N-Gr nanocomposites. Namely, the 3.9% N-CeO2 possesses numerous catalytic active defects (N states, oxygen vacancy, and Ce3+ species), leading to a narrow bandgap energy and to the improved plasmonic properties of the ceria host, while the N-Gr preferably serves as an electron scavenger to collect plasmon-generated hot electrons migrating from 3.9% N-CeO2 to drive photocatalytic reactions under the irradiation of visible-light. Resultantly, the 3.9% N-CeO2/N-Gr photocatalyst delivers an impressive hydrogen evolution reaction (HER) rate of 3.7 mu mol mg(cat)(-1) h(-1) under visible-light, which is 2.0- and 8.2-fold greater than those obtained from 3.9% N-CeO2 and CeO2 ones, respectively. Additionally, the combination of 3.9% N-CeO2 and N-Gr synergistically produces a long-lasting plasmonic HER photocatalyst system. Metal-free plasmonic N-doped oxides supported by N-doped graphene pave a promising pathway for efficient light-to-hydrogen fuel production accordingly. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.subject | NANOPARTICLES | - |
dc.subject | CERIA | - |
dc.subject | NANOTUBES | - |
dc.subject | OXIDE | - |
dc.subject | TIO2 | - |
dc.subject | CO | - |
dc.subject | IRRADIATION | - |
dc.subject | FABRICATION | - |
dc.subject | REDUCTION | - |
dc.subject | OXIDATION | - |
dc.title | Defect-rich N-doped CeO2 supported by N-doped graphene as a metal-free plasmonic hydrogen evolution photocatalyst | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, In-Hwan | - |
dc.identifier.doi | 10.1039/d1ta01379c | - |
dc.identifier.scopusid | 2-s2.0-85104931823 | - |
dc.identifier.wosid | 000639430500001 | - |
dc.identifier.bibliographicCitation | JOURNAL OF MATERIALS CHEMISTRY A, v.9, no.16, pp.10217 - 10230 | - |
dc.relation.isPartOf | JOURNAL OF MATERIALS CHEMISTRY A | - |
dc.citation.title | JOURNAL OF MATERIALS CHEMISTRY A | - |
dc.citation.volume | 9 | - |
dc.citation.number | 16 | - |
dc.citation.startPage | 10217 | - |
dc.citation.endPage | 10230 | - |
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 | Energy & Fuels | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Energy & Fuels | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.subject.keywordPlus | CERIA | - |
dc.subject.keywordPlus | CO | - |
dc.subject.keywordPlus | FABRICATION | - |
dc.subject.keywordPlus | IRRADIATION | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | NANOTUBES | - |
dc.subject.keywordPlus | OXIDATION | - |
dc.subject.keywordPlus | OXIDE | - |
dc.subject.keywordPlus | REDUCTION | - |
dc.subject.keywordPlus | TIO2 | - |
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