Solution combustion synthesis of LiCoO2 nanoparticles Obtención de nanopartículas de LiCoO2 mediante síntesis por combustión de soluciones

BENAVIDES, LISBETH ALEXANDRA; CUSCUETA, DIEGO JAVIER; MORENO, MARIO SERGIO

REVISTA MATéRIA

UNIV FED RIO DE JANEIRO

Año: 2018 vol. 23 p. 1 - 7

1517-7076

Lithium Cobalt Oxide (LiCoO2) nanoparticles were obtained by the Solutions Combustion Synthesis method, using starch as fuel. Four starch/nitrates ratios (φe) (ranging 0.5-1.25) have been studied. One route was a conventional, stoichiometric process, while the other ones were a nonstoichiometric process. The samples were calcined in air at 773K. The synthesized material was analyzed by X-ray diffraction, transmission electron microscopy, scanning electron microscopy, electrochemical charge-discharge and rate capability curves. It was identified that in all cases, powders exhibited rhombohedral crystalline structure. The powders obtained in four reactions exhibited good electrochemical performance.