Preparation of metalic nanoparticles by selective leaching

0430397 - ÚFP 2015 CZ eng A - Abstrakt
Michalcová, A. - Vojtěch, D. - Marek, I. - Kubatík, Tomáš František
Preparation of metalic nanoparticles by selective leaching.
Nanoved 2013 & Nano Info Day : 6th International Conference on Nanosciences, Nanotechnologies, Nanomaterials and Nano Info Day of the Nanoforce Project : Svit, Slovakia, September 22-25, 2013 : program and abstracts. Brno: Tribun EU, s. r. o, 2013 - (Švec, P.; Vávra, I.; Surová, S.). s. 42. ISBN 978-80-263-0511-8.
[Nanoved 2013 & Nano Info Day : 6th International Conference on Nanosciences, Nanotechnologies, Nanomaterials and Nano Info Day of the Nanoforce Project. 22.09.2013-25.09.2013, Svit]
Institucionální podpora: RVO:61389021
Klíčová slova: Nanocrystaline materials * selective leaching
Kód oboru RIV: JG - Hutnictví, kovové materiály
http://www.nanoved.sav.sk

Nanocrystalline metals are very promising materials both in form of nanoparticles and also as bulk materials. The production of such materials is usually limited by small amount of prepared metals and alloys. One of the possible ways of industrial production is selective leaching. This technique lays in preparation of supersaturated solid solution of desired element in matrix metal – by convenient heat treatment or by rapid solidification of the binary alloy. Consequently, the matrix metal is selectively dissolved and metal nanoparticles from other metal are formed. The size, shape and agglomeration of forming metallic nanoparticles are dependent on many factors such as reaction temperature, concentration of leaching solution, additives present in leaching solution. In our research we use mainly aluminium matrix. The reason for this is amphoteric behaviour, which enables aluminium dissolution in sodium hydroxide without affecting the minor metal. Nobel metals like silver or copper
Trvalý link: http://hdl.handle.net/11104/0235350