无机材料学报2012，Vol.27Issue(2)：219-224,6.DOI:10.3724/SP.J.1077.2011.11557
多孔氧化锡团聚体的合成及其电化学性能的研究
Synthesis and Electrochemical Properties of Porous SnO2 Agglomerates
摘要
Abstract
Porous SnO2 agglomerates with crystalline pore walls were obtained by employing CTAB and trimethyl phosphate (TMP) as molecular co-templates via hydrothermal method.Tin (IV) chloride dihydrate was used as the inorganic precursor at high molar ratio of surfactant/Sn4+.The resulting samples were characterized by SEM,(HR)TEM,XRD,thermal analysis and nitrogen adsorption-desorption to examine the structural and morphological characters.The results indicate that the addition of small co-template TMP can facilitate the assembling of tin ions near the CTAB miceUes,which can increase the specific surface area and improve the thermal stability of the resulted sample.The electrochemical properties of porous SnO2 as the anode materials of lithium-ion battery (LIB) are further investigated by using galvanostatic method.The porous SnO2 calcined at 300℃ displays a much higher reversible capacity of 962.4mAb/g,which can be ascribed to the incomplete combustion of the organic materials and the unique nanostructure itself.The addition of bigger counter ions with large electric negativity might give an alternative approach to improve the properties of porous metal oxides synthesized by soft template method.关键词
多孔二氧化锡团聚体/水热法/分子共模板/锂离子电池Key words
porous SnO2 agglomerates/hydrothermal method/molecular co-template/lithium ion battery分类
化学化工引用本文复制引用
李芳,祝迎春..多孔氧化锡团聚体的合成及其电化学性能的研究[J].无机材料学报,2012,27(2):219-224,6.基金项目
National Natural Science Foundation of China (51072117) （51072117）
