DC Field | Value | Language |
---|---|---|
dc.contributor.author | Zhang, Zhuo | - |
dc.contributor.author | Choi, Mingi | - |
dc.contributor.author | Baek, Minki | - |
dc.contributor.author | Deng, Zexiang | - |
dc.contributor.author | YONG, KIJUNG | - |
dc.date.accessioned | 2018-05-04T02:40:42Z | - |
dc.date.available | 2018-05-04T02:40:42Z | - |
dc.date.created | 2018-03-02 | - |
dc.date.issued | 2017-02 | - |
dc.identifier.issn | 1944-8244 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/41269 | - |
dc.description.abstract | Modem nanotechnology generates more stringent requirements for the design and synthetic strategy of nanostructural materials. In this work, we demonstrate a novel strategy for the synthesis of "corn silk"-like ZnO hierarchical nanostructures, simplified as ZnO corn silk: silk-like ZnO nanotubes (NTs) with a large length-to-diameter ratio are grown on the top tip of corn-shaped ZnO nanorods (NRs). The synthetic method is unique in that when the ZnO NRs are dipped into the aqueous solution of NaBH4, the release of Zn2+ and OH- caused by the corrosion of ZnO NRs, as well as the subsequent growth of, ZnO NTs, could allow the process to run step-by-step in self-assembly mode. This process is directed and driven by the change in concentrations of hydrogen anion H(s)(-) induced by NaBH4, as well as hydroxyl ions (OH-) induced by the H- formation and hydrolysis of dissociative Zn atoms. The prepared ZnO corn silks exhibit highly enhanced photoelectrochemical (PEC) efficiency after decoration with Au nanoparticles (NPs). ZnO silks act as pathways to facilitate efficient charge transfer, and the Au NP decoration induces the plasmonic effect, causing the hot electrons to inject into ZnO under visible illumination. At the same time, the formation of a Schottky barrier at the Au/ZnO interface can retard the electron-hole recombination. Overall, Au-decorated ZnO corn silk with an increased PEC efficiency represents a promising photoanode material, and the synthesis route developed in the current study is applicable to building hierarchical nanostructures of other materials. | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.relation.isPartOf | ACS Applied Materials & Interfaces | - |
dc.subject | ZnO corn silk | - |
dc.subject | Au nanoparticles | - |
dc.subject | hierarchical nanostructures | - |
dc.subject | photoelectrochemical enhancement | - |
dc.subject | plasmonic effect | - |
dc.subject | NaBH4 | - |
dc.title | Corrosion-Assisted Self-Growth of Au-Decorated ZnO Corn Silks and Their Photoelectrochemical Enhancement | - |
dc.type | Article | - |
dc.identifier.doi | 10.1021/acsami.6b15026 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | ACS Applied Materials & Interfaces, v.9, no.4, pp.3967 - 3976 | - |
dc.identifier.wosid | 000393355900082 | - |
dc.date.tcdate | 2019-02-01 | - |
dc.citation.endPage | 3976 | - |
dc.citation.number | 4 | - |
dc.citation.startPage | 3967 | - |
dc.citation.title | ACS Applied Materials & Interfaces | - |
dc.citation.volume | 9 | - |
dc.contributor.affiliatedAuthor | YONG, KIJUNG | - |
dc.identifier.scopusid | 2-s2.0-85011710557 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 12 | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | PHOTOCATALYTIC ACTIVITY | - |
dc.subject.keywordPlus | OPTICAL-PROPERTIES | - |
dc.subject.keywordPlus | NANOWIRE ARRAYS | - |
dc.subject.keywordPlus | NANOROD ARRAYS | - |
dc.subject.keywordPlus | DOPED ZNO | - |
dc.subject.keywordPlus | HYDROGEN EVOLUTION | - |
dc.subject.keywordPlus | OXYGEN VACANCIES | - |
dc.subject.keywordPlus | HEMATITE FILMS | - |
dc.subject.keywordPlus | SOLAR-CELLS | - |
dc.subject.keywordPlus | EFFICIENT | - |
dc.subject.keywordAuthor | ZnO corn silk | - |
dc.subject.keywordAuthor | Au nanoparticles | - |
dc.subject.keywordAuthor | hierarchical nanostructures | - |
dc.subject.keywordAuthor | photoelectrochemical enhancement | - |
dc.subject.keywordAuthor | plasmonic effect | - |
dc.subject.keywordAuthor | NaBH4 | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
library@postech.ac.kr Tel: 054-279-2548
Copyrights © by 2017 Pohang University of Science ad Technology All right reserved.