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New Functional Materials Based on Nano- and Micro-Objects with Developed Surface

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Dorogov M., Dovzhenko O., Gryzunova N., Vikarchuk A., Romanov A.
Acta Physica Polonica A
|
2015
|
vol. 128
|
issue 4
503-505
EN
The paper describes the materials with a developed surface fabricated on the basis of electrodeposited copper icosahedral small particles and coatings made of such particles. Increasing the specific surface area of the electrolytic metal is achieved by special heat and/or chemical treatments. Changes in the structure and morphology of icosahedral small particles are analyzed with scanning electron microscopy and X-ray diffraction. The specific surface area of the material is determined with low-temperature gas adsorption technique. Annealing of icosahedral small particles and coatings leads to the formation of the porous structure and a "forest" of whiskers on their surface. Chemical etching of icosahedral small particles corrodes the inside material and provides the formation of hollow particles. Possible applications for obtained materials with a developed surface are offered.
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