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Spinel CoCo 2 O 4 nanotubes and porous nanostructures have been synthesized by a novel hydrothermal method from Co(NO 3 ) 2 ·6H 2 O in mixtures of ammonia and cyclohexane at 220 °C. The morphology and phase of CoCo 2 O 4 can be controlled by adjusting the experimental parameters that include the Co 2+ concentration and the volume ratio of ammonia to cyclohexane. X-ray diffraction and transmission electron microscopy analyses were used to characterize the products. The formation mechanisms of CoCo 2 O 4 nanostructures is proposed in detail. The electrochemical properties of the as-prepared samples have been investigated.
College of Materials Science and Chemical Engineering & Tianjin Key Laboratory of Fiber Modification and Functional Fiber, Tianjin Polytechnic University, Tianjin 300160, PR China
College of Materials Science and Chemical Engineering & Tianjin Key Laboratory of Fiber Modification and Functional Fiber, Tianjin Polytechnic University, Tianjin 300160, PR China