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Solvothermal Synthesis and Properties of Three-Dimensional Ordered Nihpo3 ·H2 O/Cu3 V2O （OH）2 ·2H2O Micro/Nanomaterials

Author: SunXiuJuan
Tutor: XingYan
School: Northeast Normal University
Course: Physical and chemical
Keywords: Nano Materials Self-Assembled Solvothermal Method Magnetic Properties Electrochemical Properties
CLC: TB383.1
Type: Master's thesis
Year: 2011
Downloads: 51
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Abstract


Three-dimensional organized nanomaterials have exhibited speical optical, electric, magnetic and catalytic properties and potential applications in various research and industrial fields, which are different from those of bulk phase. So far, various methods have been applied to fabricate 3D ordered nanostructures. Because of the virtues of simple conducting, high yields and low wasting, liquid methods have been welcomed by scientists. Therefore, our study were focused on NiHPO3·H2O, Cu3V2O7（OH）2·2H2O 3D ordered nanostructures based on liquid methods. We also studied the the composition, morphology and structures of the ordered structures. Magnetic and electrochemical properties also have been studied.（1） Self-assembled three-dimensional （3D） flowerlike NiHPO3·H2O micro/nanocomposite structure has been successfully synthesized for the first time by a simple solvothermal method, employing EG/ H2O as the solvent, Na6P6O18 as phosphor source without the assistance of any template or surfactant. Our study delivered that the magnetic property of the obtained NiHPO3·H2O have also been discussed. Some factors influencing the morphology of the NiHPO3·H2O flowerlike micro/nanocomposite structures were systematically investigated.（2） Cu3V2O7（OH）2·2H2O microflowers were fabricated via a simple hydrothermal process in the presence of cetyltrimethylammonium bromide （CTAB）. Some factors influencing the morphology of the Cu3V2O7（OH）2·2H2O flower-like micro/nanocomposite structures were systematically investigated. The electrochemical measurements revealed that the Cu3V2O7（OH）2·2H2O microflowers displayed a high discharge capacity, which indicate that the 3D Cu3V2O7（OH）2·2H2O microstructures are promising cathode candidates for primary lithium batteries used in long term implantable cardioverter defibrillators （ICD）.（3） Uniform Cu3V2O7（OH）2·2H2O microspheres assembled by nanorods have been fabricated through simple hydrothermal method for the first time without the assistance of any template or surfactant. The Electrochemical measurements revealed that the Cu3V2O7（OH）2·2H2O microspheres displayed a high discharge capacity.

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