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      Microwave-assisted rapid synthesis of mesoporous nanostructured ZnCo2O4 anode materials for high-performance lithium-ion batteries

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          Abstract

          A microwave-assisted rapid synthesis method is developed to prepare mesoporous nanostructured ZnCo 2O 4, which shows excellent electrochemical performance as an anode material for lithium-ion batteries.

          Abstract

          Cobalt-based oxides have attracted much attention due to their extensive application in energy storage. In this work, a microwave-assisted second-level rapid synthesis method is developed to prepare ZnCo 2O 4 anode materials for lithium-ion batteries. Mesoporous rose-like nanostructured ZnCo 2O 4 is obtained by heat hydrolysis of a (Zn,Co)-organic hybrid precursor obtained by a rapid microwave-assisted solvothermal route. Systematic investigation on optimization of synthesis conditions is conducted to understand the synthesis-controlled process. Requisite characterization is carried out on the obtained ZnCo 2O 4 by X-ray diffraction, scanning electron microscopy, transmission electron microscopy and N 2 adsorption–desorption. As an anode material, the mesoporous rose-like ZnCo 2O 4 exhibits high capacity and excellent cyclability, which can be ascribed to the easy penetration of electrolytes into the inner part of active materials through numerous pores, stable microstructure, and alleviated volume expansion induced by the porous structure during the Li + insertion/extraction process.

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          Advanced materials for energy storage.

          Popularization of portable electronics and electric vehicles worldwide stimulates the development of energy storage devices, such as batteries and supercapacitors, toward higher power density and energy density, which significantly depends upon the advancement of new materials used in these devices. Moreover, energy storage materials play a key role in efficient, clean, and versatile use of energy, and are crucial for the exploitation of renewable energy. Therefore, energy storage materials cover a wide range of materials and have been receiving intensive attention from research and development to industrialization. In this Review, firstly a general introduction is given to several typical energy storage systems, including thermal, mechanical, electromagnetic, hydrogen, and electrochemical energy storage. Then the current status of high-performance hydrogen storage materials for on-board applications and electrochemical energy storage materials for lithium-ion batteries and supercapacitors is introduced in detail. The strategies for developing these advanced energy storage materials, including nanostructuring, nano-/microcombination, hybridization, pore-structure control, configuration design, surface modification, and composition optimization, are discussed. Finally, the future trends and prospects in the development of advanced energy storage materials are highlighted.
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            Lithium batteries: Status, prospects and future

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              Hollow Micro-/Nanostructures: Synthesis and Applications

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                Author and article information

                Journal
                JMCAET
                Journal of Materials Chemistry A
                J. Mater. Chem. A
                Royal Society of Chemistry (RSC)
                2050-7488
                2050-7496
                2015
                2015
                : 3
                : 48
                : 24303-24308
                Article
                10.1039/C5TA06949A
                5edc60a9-3a7d-4697-865d-ace04312b4bf
                © 2015
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