From nano-structured polycrystalline spheres with Zn1-xCoxO composition to core-shell Zn1-xCoxO@SiO2 as green pigments
Language
en
Article de revue
This item was published in
Journal of Alloys and Compounds. 2019, vol. 777, p. 1204-1210
Elsevier
English Abstract
ZnO doped with Co2+, a well-known green pigment which is an alternative to the chromium based inorganic pigments, has been prepared by a polyol process and investigated in terms of crystallographic structure and UV–visible ...Read more >
ZnO doped with Co2+, a well-known green pigment which is an alternative to the chromium based inorganic pigments, has been prepared by a polyol process and investigated in terms of crystallographic structure and UV–visible properties. Thanks to the obtaining of nanometric crystallite size from our process, the incorporation of a very high concentration of Co2+ in the ZnO matrix is achieved. Thus, different grades of more or less deep green pigments can be produced. Furthermore, the obtaining of spherical aggregates allows the easy preparation of ZnO:Co@SiO2 core-shells, minimizing hence the problems linked to the zinc oxide high solubility into slightly acidic conditions acidic conditions and the metal cation's toxicity.Read less <
English Keywords
Polyol synthesis
Zinc--cobalt oxide
Green pigment
Core-shell
Zinc-Cobalt oxide
Green Pigment
ANR Project
Revêtements Piézochromes Réversibles pour la Détection d'Impacts sur Supports Composites - ANR-13-RMNP-0011
Origin
Hal imported