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Nonconvex Morphology of Metallic Copper Obtained via Nonclassical Crystallization of Copper Hydride
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemistry, Applied Physical Chemistry.
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemistry, Applied Physical Chemistry. Swedish Univ Agr Sci, Dept Soil & Environm, SLU, Lennart Hjelms Vag 9, S-75651 Uppsala, Sweden..ORCID iD: 0000-0002-3398-3598
Queen Mary Univ London, Sch Engn & Mat Sci, Mile End Rd, London E1 4NS, England.;Max Planck Inst Colloids & Interfaces, Muhlenberg 1, D-14476 Potsdam, Germany..
2019 (English)In: Crystal Growth & Design, ISSN 1528-7483, E-ISSN 1528-7505, Vol. 19, no 9, p. 5275-5282Article in journal (Refereed) Published
Abstract [en]

Copper particles with a desert rose morphology and high surface area were obtained via decomposition of a copper hydride whose particles possesses a similar shape. Copper hydride was synthesized by the reaction between copper sulfate and hypophosphorous acid at 50 degrees C. The different reaction steps of the copper hydride formation were monitored by two time-dependent techniques: in situ photon cross-correlation spectroscopy and ex -situ transmission electron microscopy. At the initial stage of the reaction, emulsion droplets of a particular size were formed, followed by the growth and agglomeration of copper hydride crystallites in the confinement of these droplets. The final structure consists of roselike shaped particles with an average size of about 217 +/- 53 nm arranged into chains. The surface area of these particles was estimated to be 41 +/- 8 m(2)/g. The nucleation and growth of the copper hydride occur via a nonclassical crystallization pathway.

Place, publisher, year, edition, pages
AMER CHEMICAL SOC , 2019. Vol. 19, no 9, p. 5275-5282
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Physical Chemistry
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URN: urn:nbn:se:kth:diva-261325DOI: 10.1021/acs.cgd.9b00689ISI: 000484830800041Scopus ID: 2-s2.0-85070721401OAI: oai:DiVA.org:kth-261325DiVA, id: diva2:1358288
Note

QC 20191007

Available from: 2019-10-07 Created: 2019-10-07 Last updated: 2019-10-07Bibliographically approved

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Soroka, InnaNorrfors, Knapp Karin

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