• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Structural correlation of a nanoparticle-embedded mesoporous CoTiO(3)perovskite for an efficient electrochemical supercapacitor
【24h】

Structural correlation of a nanoparticle-embedded mesoporous CoTiO(3)perovskite for an efficient electrochemical supercapacitor

机译：纳米粒子嵌入中孔CotiO（3）钙钛矿对高效电化学超级电容器的结构相关性

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We synthesized mesoporous cobalt titanate (CTO) microrodsviathe sol-gel method as an outstanding working electrode for the supercapacitor. The mesoporous CTO microrods were amassed in hexagonal shapes of an average width of similar to 670 nm, and were composed of nanoparticles of average diameter similar to 41 nm. The well crystalline CTO microrods of the hexagonal phase to theR3 & x304; space group possessed an average pore size distribution of 3.92 nm throughout the microrod. The mesoporous CTO microrods with increased textural boundaries played a vital role in the diffusion of ions, and they provided a specific capacitance of 608.4 F g(-1)and a specific power of 4835.7 W kg(-1)and a specific energy of 9.77 W h kg(-1)in an aqueous 2 M KOH electrolyte, which was remarkably better than those of Ti, La, Cr, Fe, Ni, and Sr-based perovskites or their mixed heterostructures supplemented by metal oxides as an impurity. Furthermore, the diffusion-controlled access to the OH(-)ions (0.27 mu s) deep inside the microrod conveyed high stability, a long life cycle for up to 1950 continuous charging-discharging cycles, and excellent capacitance retention of 82.3%. Overall, the mesoporous CTO shows its potential as an electrode for a long-cycle supercapacitor, and provides opportunities for additional enhancement after developing the core-shell hetero-architecture with other metal oxide materials such as MnO2, and TiO2.
机译：我们合成了介孔钴钛酸盐（CTO）Microrodsvia溶胶 - 凝胶法作为超级电容器的出色工作电极。中孔CTO微摩擦在平均宽度的六边形形状中分配到670nm，并且由平均直径的纳米颗粒组成，与41nm相似。六边形相的孔结晶CTO微孔3＆x304;空间集团在整个Microrod中拥有3.92纳米的平均孔径分布。具有增加的纹理边界的介孔CTO微管状在离子的扩散中起着至关重要的作用，并且它们提供了608.4f g（-1）的特定电容和4835.7 w kg（-1）的特定功率和9.77的特定能量在2M koh电解质中的Wh kg（-1），其比Ti，La，Cr，Fe，Ni和Sr基钙酸盐或其混合异质结构的水溶液更好，或者由金属氧化物作为杂质的杂质。此外，微火箭内部的OH（ - ）离子（0.27μs）的扩散受控进入传送了高稳定性，长寿命周期最多可连续充电排放循环，并且优异的电容保留为82.3％。总的来说，中孔CTO显示其作为长循环超级电容器的电极的潜力，并在用其他金属氧化物材料如MNO2和TiO 2开发核壳异质架构之后提供额外增强的机会。

著录项

  • 来源
    《RSC Advances》 |2020年第39期|共11页
  • 作者

    Kitchamsetti Narasimharao; Choudhary Ram J.; Phase Deodatta M.; Devan Rupesh S.;

  • 作者单位

    Indian Inst Technol Indore Discipline Met Engn &

    Mat Sci Indore 453552 Madhya Pradesh India;

    UGC DAE Consortium Sci Res Khandwa Rd Indore 452001 Madhya Pradesh India;

    UGC DAE Consortium Sci Res Khandwa Rd Indore 452001 Madhya Pradesh India;

    Indian Inst Technol Indore Discipline Met Engn &

    Mat Sci Indore 453552 Madhya Pradesh India;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号