| Titre : | Preparation and formation mechanism of silver particles with spherical open structures (2011) |
| Auteurs : | Roberto Irizarry, Auteur ; Lourian Burwell, Auteur ; Madeline S. Leon-Velazquez, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 50 N° 13, Juillet 2011) |
| Article en page(s) : | pp. 8023-8033 |
| Note générale : | Chimie industrielle |
| Langues : | Anglais |
| Tags : | Formation mechanism Preparation |
| Résumé : | A new type of highly dispersible silver particles has been developed consisting of two- and three-dimensional building blocks that form spherical shapes with open structures. The first morphology consists of uniform particles that are composed of anisotropic building blocks mainly in the form of a network of platelets forming a spherical, open-structured particle. These platelets are 100-2000 nm in length, with a crystallite size in the range 20-100 nm. The second morphology consists of isotropic components that are 100-500 nm in length, with a crystallite size in the range of 20-100 nm. In both cases, the silver powder was comprised of well-defined monosized particles and was highly dispersible. These powders were prepared by rapidly mixing a silver solution with an ascorbic acid/sodium citrate solution at low pH. A mechanism is proposed for the formation of these novel structures. |
| DEWEY : | 660 |
| ISSN : | 0888-5885 |
| En ligne : | http://cat.inist.fr/?aModele=afficheN&cpsidt=24332127 |
