[en] Zn-doped NiO powders have been prepared via pyrolysis at 500°C of zinc-nickel malonate precursors prepared by co-precipitation
using different molar ratios of Zn/Ni (0.01 - 0.04 and 0.1). Structural characterization of the powders was performed by X-ray
powder Diffraction (XRD) and Time of Flight-Secondary Ion Mass Spectrometry (ToF-SIMS). The results confirm that a single
phase of Ni1-xZnxO (x=0.01-0.04, 0.1) is formed. Electrical measurements reveal that its activation energy decreases with increasing
amount of Zn. Gas-sensing measurements reveal that the optimal operating temperature is 300 °C and that the use of 2 % Zn as a
dopant improved the gas-sensing properties.
Research center :
CRIM - Ingénierie des matériaux
Disciplines :
Computer science
Author, co-author :
Lontio, Fomekong Roussin
Lahem, Driss
Debliquy, Marc ; Université de Mons > Faculté Polytechnique > Science des Matériaux
Dupont, Védi
Ngolui, John Lambi
Delcorte, Arnaud
Language :
English
Title :
Co-precipitation synthesis by malonate route, structural characterization and gas sensing properties of Zn-doped NiO
Publication date :
01 February 2016
Journal title :
Materials Today: Proceedings
Publisher :
Elsevier, Netherlands
Volume :
3
Pages :
586 - 591
Peer reviewed :
Peer reviewed
Research unit :
F502 - Science des Matériaux
Research institute :
R400 - Institut de Recherche en Science et Ingénierie des Matériaux
