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Cho, Seungho
Metal Oxide DEsign Laboratory (MODEL)
Research Interests
  • Metal Oxide Crystal Growth

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Formation of Amorphous Zinc Citrate Spheres and Their Conversion to Crystalline ZnO Nanostructures

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dc.contributor.author Cho, Seungho ko
dc.contributor.author Jang, Ji-Wook ko
dc.contributor.author Jung, Alum ko
dc.contributor.author Lee, Sung-Hyun ko
dc.contributor.author Lee, Jaeguen ko
dc.contributor.author Lee, Jae Sung ko
dc.contributor.author Lee, Kun-Hong ko
dc.date.available 2015-07-29T00:55:15Z -
dc.date.created 2015-07-28 ko
dc.date.issued 2011-01 ko
dc.identifier.citation LANGMUIR, v.27, no.1, pp.371 - 378 ko
dc.identifier.issn 0743-7463 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/12836 -
dc.description.abstract We report a method for synthesizing zinc citrate spheres at a low temperature (90 degrees C) under normal atmospheric pressure. The spherical structures were amorphous and had an average diameter of similar to 1.7 mu m. The amorphous zinc citrate spheres could be converted into crystalline ZnO nanostructures in aqueous solutions by heating at 90 degrees C for 1 h. By local dissolution of the zinc citrate spheres, nucleation and growth of ZnO occurred on the surfaces of the amorphous zinc citrate spheres. The morphologies and exposed crystal faces of the crystalline ZnO nanostructures (structure I: oblate spheroid; structure II: prolate spheroid; structure III: hexagonal disk; structure IV: sphere) could be controlled simply by varying the solution composition (solutions I, II, III, or IV) in which the as-prepared amorphous zinc citrate spheres were converted. The concentration of citrate anions and solution pH played a decisive role in determining the morphologies and exposed crystal faces of the crystalline ZnO nanostructures. On the basis of experimental results, we propose a plausible mechanism for the conversion of amorphous zinc citrate spheres into the variety of observed ZnO structures ko
dc.description.statementofresponsibility close -
dc.language 영어 ko
dc.publisher AMER CHEMICAL SOC ko
dc.title Formation of Amorphous Zinc Citrate Spheres and Their Conversion to Crystalline ZnO Nanostructures ko
dc.title.alternative Formation of Amorphous Zinc Citrate Spheres and Their Conversion to Crystalline ZnO Nanostructures ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-78650700645 ko
dc.identifier.wosid 000285560400050 ko
dc.type.rims ART ko
dc.description.wostc 21 *
dc.description.scopustc 23 *
dc.date.tcdate 2015-12-28 *
dc.date.scptcdate 2015-11-04 *
dc.identifier.doi 10.1021/la103600c ko
dc.identifier.url http://pubs.acs.org/doi/abs/10.1021/la103600c ko
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