一步法制备金红石型TiO_2介孔微球负极材料  

A one-step synthesis of rutile mesoporous microspheres TiO_2 for anode materials

作　　者：曹丽云[1] 惠亚妮 黄剑锋[1] 欧阳海波[1] 李嘉胤[1] 

机构地区：[1]陕西科技大学材料科学与工程学院,陕西西安710021

出　　处：《陕西科技大学学报（自然科学版）》2015年第3期46-50,共5页Journal of Shaanxi University of Science & Technology

基　　金：国家科技支撑计划项目(2013BAF09B02);国家自然科学基金项目(51472152);陕西省科技厅科研创新团队计划项目(2013KCT-06)

摘　　要：以四氯化钛、乙二醇和乙酸为起始原料,采用低温溶剂法成功制备了金红石型TiO2介孔微球.利用X-射线衍射仪(XRD)、扫描电子显微镜(SEM)和N2吸附-脱附测试对材料进行了表征,并研究了它的电化学性能.结果表明:相比于市售纳米级金红石型二氧化钛,介孔微球具有更好的倍率性能和循环稳定性(5C倍率下循环100次容量保持率为98%).Rutile TiO2 mesoporous microspheres were successfully prepared by a low-temperature solvothermal synthesis using titanium tetrachloride, ethanediol and acetic acid as raw materials. The materials were characterized by X-Ray Diffraction （XRD）, Scanning Electron Microscope （SEM） and nitrogen adsorption/desorption measurement. Additionally,the electrochemical properties of TiOz mesoporous microspheres were researched. Results indicate that, the TiO2 mesoporous microspheres possess superior rate capabilities and cycle performance （98%0 capacity retention after 100 cycles at 5 C）, compared to the commercial futile nano-TiO2.

关 键 词：介孔 TIO2 电化学性能 

分 类 号：TB383[一般工业技术—材料科学与工程]