通过硝酸铈的乙醇溶液燃烧一步合成了含有微量碳的二氧化铈纳米材料（C-CeO₂）。电化学测试结果表明，C-CeO₂纳米材料在1 A/g电流密度时的比电容为125 F/g，是相同条件下纯CeO₂纳米材料比电容（55 F/g）的2.3倍。另外，C-CeO₂纳米材料在循环充放电测试1 000次后的比电容保持率高达83%。

Carbon incorporated ceria nanomaterials (C-CeO₂) are prepared by combusting ethanol solution of cerium nitrate in one step.The successful fabrication of C-CeO₂ nanomaterials is confirmed by the characterizations of crystal phase and morphology.The electrochemical measurements demonstrate that the specific capacitance value of the prepared C-CeO₂ can reach 125 F·g^-1 at a current density of 1 A·g^-1,which is 2.3 times that of pure CeO₂ nanomaterials (55 F·g^-1).Moreover,the prepared C-CeO₂ nanomaterials remain 83% of the initial capacitance after 1,000 cycles of charge/discharge test.

史纪峰(1992-),男,硕士研究生,主要研究方向为新能源材料与器件,shijifeng1917@163.com