L-Leucine Templated Biomimetic Assembly of SnO(2) Nanoparticles and Their Lithium Storage Properties.
L-Leucine Templated Biomimetic Assembly of SnO(2) Nanoparticles and Their Lithium Storage Properties.
复制标题
L-亮氨酸模板仿生组装 SnO2 纳米粒子及其储锂性能
作者：
Yu P;Liu M;Gong H;Wu F;Yi Z;Liu H
以L-亮氨酸为生物模板，采用溶胶-凝胶法辅助仿生组装的方法合成了SnO 2纳米粒子。采用X射线衍射（XRD）、扫描电子显微镜（SEM）、傅里叶变换红外光谱（FT-IR）和Brunner−埃米特−Teller（BET）测试等方法对SnO 2纳米粒子的微观结构进行了表征。结果表明，在较高的煅烧温度下，L-亮氨酸可以调控SnO 2的生长。并将其作为锂离子电池负极进行了电化学性能测试。石墨碳包覆纳米SnO_2制备SnO_2/C复合材料对SnO_2的高温生长规律具有指导意义。
SnO2 nanoparticles have been synthesized by a novel route of a sol-gel method assisted with biomimetic assembly using L-leucine as a biotemplate. The microstructure of as-prepared SnO2 nanoparticles was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectra (FT-IR), and Brunner−Emmet−Teller (BET) measurements. The results demonstrated that the growth of SnO2 could be regulated by L-leucine at a high calcination temperature. The electrochemical performance of SnO2 was also measured as anodes for lithium-ion battery. It is a guidance for the growth regulation of SnO2 at high temperature to obtain SnO2/C with nanosized SnO2 coated by a graphitic carbon.
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