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海胆状α-Fe_2O_3纳米材料的制备与电化学性能 被引量：1

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摘要 采用葡萄糖引导水解-热处理工艺,通过调节热处理温度制备了不同形貌和结构的海胆状α-Fe_2O_3,并研究了其电化学特性.结果表明,改变热处理温度可有效地调节产物的结构和电化学性能.在300℃热处理获得由梭形纤维束组成的海胆状α-Fe_2O_3电极材料具有高的初始放电容量(1475.0mAhg^(-1),这明显高于700℃热处理获得由高结晶度的纳米棒组成的低比表面积的海胆状α-Fe_2O_3电极材料的931.2mAhg^(-1).这是由于低结晶度、高比表面积和有序的双模式孔有益于电解液的吸附和锂离子的传输,使电化学反应活性提高.
作者 童国秀 官建国 吴文华 李良超 关瑶 华桥
机构地区 浙江师范大学化学与生命科学学院 武汉理工大学材料复合新技术国家重点实验室
出处 《中国科学：技术科学》 EI CSCD 北大核心 2010年第9期1114-1120,共7页 Scientia Sinica(Technologica)
基金 国家高技术研究发展计划("863"计划)(批准号:2006AA03A209) 教育部新世纪优秀人才支持计划(批准号:NCET-05-0660) 浙江省自然科学基金(批准号:Y4080417 Y4090636) 浙江省新苗人才计划 浙江师范大学博士启动基金(批准号:ZC304009094) 浙江师范大学实验室开放项目资助
关键词 海胆状结构 Α-FE2O3 电化学性能 葡萄糖引导水解-热处理工艺
分类号 TB383.1 [一般工业技术—材料科学与工程]
  • 相关文献

参考文献28

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共引文献8

同被引文献16

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中国科学：技术科学
2010年 第9期

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