DC Field | Value | Language |
---|---|---|
dc.contributor.author | Jung, Kyeong Youl | ko |
dc.contributor.author | Lee, Jong Ho | ko |
dc.contributor.author | Koo, Hye Young | ko |
dc.contributor.author | Kang, Yun Chan | ko |
dc.contributor.author | Park, SeungBin | ko |
dc.date.accessioned | 2013-03-08T04:47:47Z | - |
dc.date.available | 2013-03-08T04:47:47Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2007-02 | - |
dc.identifier.citation | MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, v.137, no.1-3, pp.10 - 19 | - |
dc.identifier.issn | 0921-5107 | - |
dc.identifier.uri | http://hdl.handle.net/10203/92197 | - |
dc.description.abstract | Spherical nickel nanoparticles were prepared by a large-scale spray pyrolysis process with two continuous reactors and were investigated in terms of particle-formation mechanism, surface property, particle shape, and size with changing the temperature of two continuous reactors and the type of precursor. When nickel nitrate was used as a precursor and the second reactor temperature was over 1200 degrees C, solid Ni particles were obtained, but many ultra-fine particles of less than tens nanometer were simultaneously formed via a gas-to-particle conversion mechanism. The formation of such ultra-fine particles was reduced by making hollow particles in the first reactor at 500 degrees C and thereafter densifying them in the second reactor at 1400 degrees C, but could not completely prevent. The addition of about 5-10 mol% nickel acetate instead nitrate precursor was found to be very effective to avoid the formation of such ultra-fine particles as well as producing solid particles with clean and smooth surface. On the basis of the results obtained, a mechanism of particle formation in the large-scale spray pyrolysis was proposed. Finally, spherical and solid nickel nanoparticles, which had clean surface and high density (larger than 8.4 g/cm(3)), were prepared from the mixed precursor (nitrate/acetate) at a residence time of about 3 s without any chemical additive. (c) 2006 Elsevier B.V. All rights reserved. | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.subject | NI PARTICLES | - |
dc.subject | ELECTRODES | - |
dc.title | Preparation of solid nickel nanoparticles by large-scale spray pyrolysis of Ni(NO3)(2)center dot 6H(2)O precursor: Effect of temperature and nickel acetate on the particle morphology | - |
dc.type | Article | - |
dc.identifier.wosid | 000244797900003 | - |
dc.identifier.scopusid | 2-s2.0-33846850133 | - |
dc.type.rims | ART | - |
dc.citation.volume | 137 | - |
dc.citation.issue | 1-3 | - |
dc.citation.beginningpage | 10 | - |
dc.citation.endingpage | 19 | - |
dc.citation.publicationname | MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY | - |
dc.identifier.doi | 10.1016/j.mseb.2006.09.025 | - |
dc.contributor.localauthor | Park, SeungBin | - |
dc.contributor.nonIdAuthor | Jung, Kyeong Youl | - |
dc.contributor.nonIdAuthor | Lee, Jong Ho | - |
dc.contributor.nonIdAuthor | Koo, Hye Young | - |
dc.contributor.nonIdAuthor | Kang, Yun Chan | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | NI PARTICLES | - |
dc.subject.keywordPlus | ELECTRODES | - |
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