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首页> 外文期刊>RSC Advances >Facile solvothermal synthesis of porous ZnFe2O4 microspheres for capacitive pseudocapacitors
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Facile solvothermal synthesis of porous ZnFe2O4 microspheres for capacitive pseudocapacitors

机译：容性伪电容器的多孔ZnFe2O4微球的轻松溶剂热合成

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摘要

A facile and cost-effective solvothermal approach to the fabrication of ZnFe2O4 microspheres composed of nanocrystals has been developed. The morphology and structure of the products were characterized by Xray powder diffraction, transmission electron microscopy, and field-emission scanning electronic microscopy, and N-2-adsorption-desorption. Meanwhile, the magnetic properties of the product were investigated via vibrating sample magnetism. Finally, the electrochemical performance of the obtained ZnFe2O4 microspheres was measured by cyclic voltammetry and galvanostatic charge-discharge techniques. The results show that such structured ZnFe2O4 has a specific capacitance of 131 F g(-1) and stable cycling performance with 92% capacitance retention after 1000 cycles, which make it have a potential application as a supercapacitor electrode material.
机译：已经开发了一种简便且经济高效的溶剂热方法来制备由纳米晶体组成的ZnFe2O4微球。通过X射线粉末衍射，透射电子显微镜和场发射扫描电子显微镜以及N-2-吸附-解吸来表征产物的形态和结构。同时，通过振动样品磁性来研究产品的磁性能。最后，通过循环伏安法和恒电流充放电技术测量了所得ZnFe2O4微球的电化学性能。结果表明，这种结构化的ZnFe2O4具有131 F g（-1）的比电容和稳定的循环性能，在1000次循环后具有92％的电容保持率，这使其有可能作为超级电容器电极材料应用。

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