【摘要】 以十二烷基苯磺酸钠（SDBS）为表面活性剂采用水热法合成了Zn₂SnO₄纳米颗粒,反应过程中添加和不添加SDBS会对样品产生影响。添加SDBS合成的样品颗粒粒径较小,约为70 nm,并且粒径分布均匀。将其用作锂离子电池的负极材料,在50 mA/g的电流密度下进行充放电循环,具有1 619 mAh/g的首次放电比容量,在50、100、200、400、600和1000 mA/g的电流密度下进行倍率性能测试,在各电流密度下循环5次后,材料的放电比容量分别为883、658、509、380、295、165 mAh/g,当电流密度重新返回50 mA/g时,电极仍具有716 mAh/g的比容量,各放电比容量均高于同条件下没有添加SDBS的样品的比容量。更多还原

【Abstract】 Sodium dodecyl benzene sulfonate（SDBS）-assisted Zn₂SnO₄ nanoparticles were successfully synthesized by a hydrothermal process using SDBS as surfactant. The sample was influenced with or without adding SDBS. Compared with the sample prepared without adding SDBS, the size of the sample ZTO-S decreased and the distribution of particle size were more uniform. As anodes for lithium ion batteries, the ZTO-S delivered an initial discharge capacity of 1 619 mAh/g at the current density of 50 mA/g. In rate performance test, after 5 cycles, the ZTO-S electrode delivered capacities of 883, 658, 509, 380,295, 165 mAh/g at 50, 100, 200, 400, 600 and 1 000 mA/g. When the current density was reset to 50 mA/g, ZTO-s still delivered a higher capacity of 716 mAh/g, exhibiting improved lithium storage performance.更多还原