介孔材料
煅烧
插层(化学)
锂(药物)
材料科学
无机化学
钛
化学工程
电化学
电极
化学
催化作用
有机化学
冶金
物理化学
医学
工程类
内分泌学
作者
Zhicong Shi,Qiong Wang,Weiling Ye,Yixiao Li,Yong Yang
标识
DOI:10.1016/j.micromeso.2005.09.013
摘要
Mesoporous titanium pyrophosphates have been synthesized by a sol–gel template method with further calcinations at or below the temperature of 700 °C. When calcined at 800 °C, crystalline TiP2O7 will be formed accompanied with the break down of meso-structure in the precursor. Mesoporous TiP2O7 shows a similar lithium ion intercalation behavior to that of solid solution in the electrochemical tests. When cycled at high charge/discharge rate, mesoporous TiP2O7 calcined at 700 °C delivers a higher specific discharge capacity than that of crystalline TiP2O7, indicating that mesoporous structure is beneficial for improving the transportation and intercalation/deintercalation behavior of lithium ions in the materials, thus improving the charge/discharge performance of the materials at high charge/discharge rate.
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