2008
Felipe Legorreta Garcia, Alain Peigney, Christophe Laurent. Tetragonal-(Zr,Co)O2 solid solution: Combustion synthesis, thermal stability in air and reduction in H2, H2CH4 and H2C2H4 atmospheres. Materials Research Bulletin 43, 2008, 30883099; ISSN: 0025-5408.
Abstract
The synthesis of Co2+-stabilized zirconia by the nitrate/urea combustion route is investigated. Using seven times the so-called stoichiometric urea proportion allows to obtain for the first time the Zr0.9Co0.1O1.9 solid solution fully stabilized in tetragonal form. The thermal stability in air and the reduction in H2, H2CH4 and H2C2H4 atmospheres are studied. The carbon forms obtained upon reduction are investigated. Reduction in H2CH4 produces many carbon species including short carbon nanofibers, nanoribbons, hollow particles often forming bamboo structures, carbon-encapsulated Co particles and carbon nanotubes. Reduction in H2C2H4 produces 1530 nm nanofibers.
OBTENCIÓN DE POLVOS CERÁMICOS DEL SISTEMA EuxCa1-xMnO3 POR EL MÉTODO POLIOL
Synthesis, Microstructure and EPR of CaMnO3 and EuxCa1-xMnO3 Manganite, Obtained by Coprecipitation
ESTUDIO DE LA MANGANITA EuxCa1-xMnO3
Separación de óxidos de Fe del caolín por simple asentamiento