A Chemical Route to Large‐Scale Preparation of Spherical and Monodisperse Ni Powders
Identifieur interne : 000439 ( Main/Exploration ); précédent : 000438; suivant : 000440A Chemical Route to Large‐Scale Preparation of Spherical and Monodisperse Ni Powders
Auteurs : Jae Oung Choi [Corée du Sud] ; Yong Yun Lee [Corée du Sud] ; Seon I Yoon [Corée du Sud] ; Hyun Chul Lee [Corée du Sud] ; Byung I Kim [Corée du Sud] ; Jong Min Kim [Corée du Sud] ; Kang In Kim [Corée du Sud] ; Jong Eun Lee [Corée du Sud]Source :
- Journal of the American Ceramic Society [ 0002-7820 ] ; 2005-11.
Abstract
A facile chemical route to prepare a well‐defined Ni powder on a mass‐production scale without external heating was suggested. A highly concentrated Ni complex was formed between NiCl2 and N2H4 solution, and subsequent addition of NaOH solution triggered serial reactions from the Ni complex decomposition via Ni(OH)2 formation to the reduction of a Ni(OH)2 gel into well‐defined Ni spheres. The high temperature necessary for the reaction was attained not by external heating but by exothermic reactions such as complex formation and reduction. The preparation of monodisperse and spherical Ni powder was attributed to uniform distribution of the reducing agent (N2H4) within the Ni(OH)2 gel.
Url:
DOI: 10.1111/j.1551-2916.2005.00582.x
Affiliations:
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Eun" sort="Lee, Jong Eun" uniqKey="Lee J" first="Jong Eun" last="Lee">Jong Eun Lee</name><affiliation wicri:level="1"><country xml:lang="fr">Corée du Sud</country><wicri:regionArea>Division of Materials Science & Engineering, Korea University, Seoul 136‐701</wicri:regionArea><placeName><settlement type="city">Séoul</settlement></placeName></affiliation></author></analytic><monogr></monogr><series><title level="j">Journal of the American Ceramic Society</title><idno type="ISSN">0002-7820</idno><idno type="eISSN">1551-2916</idno><imprint><publisher>Blackwell Science Inc</publisher><pubPlace>Oxford, UK</pubPlace><date type="published" when="2005-11">2005-11</date><biblScope unit="volume">88</biblScope><biblScope unit="issue">11</biblScope><biblScope unit="page" from="3020">3020</biblScope><biblScope unit="page" to="3023">3023</biblScope></imprint><idno type="ISSN">0002-7820</idno></series><idno type="istex">901F909F7DB47EA53D1D9667159CD20B7317334B</idno><idno type="DOI">10.1111/j.1551-2916.2005.00582.x</idno><idno type="ArticleID">JACE00582</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0002-7820</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">A facile chemical route to prepare a well‐defined Ni powder on a mass‐production scale without external heating was suggested. A highly concentrated Ni complex was formed between NiCl2 and N2H4 solution, and subsequent addition of NaOH solution triggered serial reactions from the Ni complex decomposition via Ni(OH)2 formation to the reduction of a Ni(OH)2 gel into well‐defined Ni spheres. The high temperature necessary for the reaction was attained not by external heating but by exothermic reactions such as complex formation and reduction. The preparation of monodisperse and spherical Ni powder was attributed to uniform distribution of the reducing agent (N2H4) within the Ni(OH)2 gel.</div></front></TEI><affiliations><list><country><li>Corée du Sud</li></country><settlement><li>Séoul</li></settlement></list><tree><country name="Corée du Sud"><noRegion><name sortKey="Choi, Jae Oung" sort="Choi, Jae Oung" uniqKey="Choi J" first="Jae Oung" last="Choi">Jae Oung Choi</name></noRegion><name sortKey="Kim, Byung I" sort="Kim, Byung I" uniqKey="Kim B" first="Byung I" last="Kim">Byung I Kim</name><name sortKey="Kim, Jong Min" sort="Kim, Jong Min" uniqKey="Kim J" first="Jong Min" last="Kim">Jong Min Kim</name><name sortKey="Kim, Kang In" sort="Kim, Kang In" uniqKey="Kim K" first="Kang In" last="Kim">Kang In Kim</name><name sortKey="Lee, Hyun Chul" sort="Lee, Hyun Chul" uniqKey="Lee H" first="Hyun Chul" last="Lee">Hyun Chul Lee</name><name sortKey="Lee, Jong Eun" sort="Lee, Jong Eun" uniqKey="Lee J" first="Jong Eun" last="Lee">Jong Eun Lee</name><name sortKey="Lee, Yong Yun" sort="Lee, Yong Yun" uniqKey="Lee Y" first="Yong Yun" last="Lee">Yong Yun Lee</name><name sortKey="Yoon, Seon I" sort="Yoon, Seon I" uniqKey="Yoon S" first="Seon I" last="Yoon">Seon I Yoon</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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