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Issue Title: 10th Anniversary 1999-2008
Cobalt oxide Co^sub 3^O^sub 4^ is prepared according to several methods i.e. oxalate decomposition (CoAO), surfactant-assisted precipitation (CoCTAB), sol-gel technique (CoSG) and polymer combustion (CoPVA). The solids are characterized by XRD, FTIR, TPR and TEM analysis....