Synthesis, evaluation of kinetic characteristics and investigation of apoptosis of Cu2+-modified ceria nano discs
来源期刊：Journal of Rare Earths2018年第10期
论文作者：K.Nusrath K.Muraleedharan
文章页码：1050 - 1059
摘 要：Ceria nano discs were synthesized by the stepwise thermal decomposition strategy of the oxalate precursor. A series of Ce1-xCuxO2（x = 0, 0.02, 0.1, 0.2 and 0.3） nano sized oxide systems were prepared through thermal decomposition route. Kinetic characterization of formation of solid solution was made by isoconversional strategy under non-isothermal condition. Introduction of various reactant molar ratios of Cu2+:Ce4+ has a pivotal role in the creation of new oxygen vacancies, decomposition strategy,particle size and shape. Cu2+ doping（x = 0.02 and 0.1） damages the disc shaped morphology of ceria.Homogeneous distribution of Cu2+ on the oxalate precursor has a significant role in the catalyzing activity for the destruction of oxalate bond to oxide. 2 mol% doped Cu2+ promotes breaking of oxalate bonds in nitrogen atmosphere. In vitro cell viability assay illustrates enhanced toxicity to cancer cells with 10 mol% Cu2+ doped ceria.
K.Nusrath，K.Muraleedharan
Department of Chemistry,University of Calicut
摘 要：Ceria nano discs were synthesized by the stepwise thermal decomposition strategy of the oxalate precursor. A series of Ce1-xCuxO2（x = 0, 0.02, 0.1, 0.2 and 0.3） nano sized oxide systems were prepared through thermal decomposition route. Kinetic characterization of formation of solid solution was made by isoconversional strategy under non-isothermal condition. Introduction of various reactant molar ratios of Cu2+:Ce4+ has a pivotal role in the creation of new oxygen vacancies, decomposition strategy,particle size and shape. Cu2+ doping（x = 0.02 and 0.1） damages the disc shaped morphology of ceria.Homogeneous distribution of Cu2+ on the oxalate precursor has a significant role in the catalyzing activity for the destruction of oxalate bond to oxide. 2 mol% doped Cu2+ promotes breaking of oxalate bonds in nitrogen atmosphere. In vitro cell viability assay illustrates enhanced toxicity to cancer cells with 10 mol% Cu2+ doped ceria.
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