Semiempirical dynamic phase diagrams of nanocrystalline products during copper (II) acetylacetonate vapour decomposition |
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| Affiliation: | 1. VTT Processes, Aerosol Technology Group, P.O. Box 1401, FIN-02044 VTT, Espoo, Finland;2. National CRI Center for Nano Particle Control, Institute of Advanced Machinery and Design, Seoul National University, San 56-1, Shinlim-Dong, Kwanak-Gu, Seoul 151-742, Republic of Korea;1. A. A. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, 119334 Moscow, Russian Federation;2. I. M. Gubkin Russian State University of Oil and Gas (National Research University), 119991 Moscow, Russian Federation;1. Department of Chemical Engineering, Faculty of Engineering, Kasetsart University, Bangkok 10900, Thailand;2. Institute of Materials Chemistry/Physical Chemistry Division, Vienna University of Technology, Getreidemarkt 9/1060, Vienna, Austria;3. Center for Advanced Studies in Nanotechnology and Its Applications in Chemical, Food and Agricultural Industries, Kasetsart University, Bangkok 10900, Thailand;1. Research Institute of Electrochemical Energy, National Institute of Advanced Industrial Science and Technology (AIST), 1-8-31, Midorigaoka, Ikeda, Osaka 563-8577, Japan;2. Elements Strategy Initiative for Catalysts and Batteries (ESICB), Kyoto University, 1-30 Goryo Ohara, Nishikyo, Kyoto, Kyoto 615-8245, Japan;3. Inorganic Functional Materials Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-8-31, Midorigaoka, Ikeda, Osaka 563-8577, Japan;4. Department of Chemistry, Graduate School of Science, Osaka University, 1-1, Machikaneyama, Toyonaka, Osaka 60-0043, Japan;1. Department of Functional Material Research, Central Iron and Steel Research Institute, Beijing 100081, China;2. Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China;3. Key Laboratory of Integrated Exploitation of Baiyun Obo Multi-Metal Resources, Inner Mongolia University of Science and Technology, Baotou 014010, China |
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| Abstract: | ![]()
Nanoparticle production by Cu(acac)2 vapour decomposition was studied. The composition of the produced particles varied from Cu to Cu2O depending on experimental conditions. In order to explain the crystalline phase behaviour, a kinetic model to build a semiempirical dynamic phase diagram of the products was proposed. Prevailing role of copper dimers in the processes of copper and copper (I) oxide particle growth was demonstrated. The composition of products was determined by reactions on the surface of growing particles and depended on the ratio of gaseous species. The calculated dynamic phase diagrams were in excellent agreement with the experimental results. |
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