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Sn6O4(OH)4 Coated on ZnO Surface:Preparation and Application in Zinc-Nickel Secondary Battery
Author NameAffiliationE-mail
YU Shuang-Lin Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China  
YU Xiao-Hua Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China yxhyxh1978@aliyun.com 
LÜ Xiang Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China  
WANG Ying Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China  
FENG Pan Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China  
BIE Han-Bo Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China  
XIE Gang Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China
State Key Laboratory of Common Associated Non-ferrous Metal Resources Pressure Hydrometallurgy Technology, Kunming 650500, China 		 
Abstract: The hydrothermal-coprecipitation method was successfully used to prepare Sn6O4(OH)4 coated on the surface of zinc oxide. The modified ZnO material was characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) and energy dispersive spectrometer (EDS) analysis. The results show:Sn6O4(OH)4 was coated on the surface of ZnO and the crystallinity was well at pH=12, and the coating composition is including Zn, Sn, O. The electrochemical performances of Sn6O4(OH)4-coated ZnO was investigated by cyclic voltammetry (CV), electro-chemical impedance spectroscopy (EIS) and charge-discharge technology. Compared with pure ZnO, The CV curves and the electrochemical impedance spectroscopy show that Sn6O4(OH)4-coated ZnO can improve the corrosion resistance and increase charge transfer resistance (Rct), Sn6O4(OH)4-coated ZnO electrode has best charge-discharge efficiency when the Sn6O4(OH)4 content is 3%, and the capacity retention ratio of the coated ZnO is about 70% after over 40 cycles with the rate of 0.2C, which is much higher than that of the pure ZnO.
Keywords: zinc oxide  hydrothermal-coprecipitation method  Sn6O4(OH)4 coated  electrochemical performance
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YU Shuang-Lin,YU Xiao-Hua,LÜ Xiang,WANG Ying,FENG Pan,BIE Han-Bo,XIE Gang.Sn6O4(OH)4 Coated on ZnO Surface:Preparation and Application in Zinc-Nickel Secondary Battery[J].Chinese Journal of Inorganic Chemistry,2017,33(9):1573-1578.
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Chinese Journal of Inorganic Chemistry