• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Nanotechnology >Effective NaBH4-exfoliated ultrathin multilayer Co(OH)(2) nanosheets arrays and sulfidation for energy storage
【24h】

Effective NaBH4-exfoliated ultrathin multilayer Co(OH)(2) nanosheets arrays and sulfidation for energy storage

机译：有效的NaBH4-exfoliated超薄多层Co（OH）（2）纳米晶片阵列和硫化储能

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

Facile engineering ultrathin nano structural materials is still a huge challenge for material science. Thereinto, the strategy of exfoliating shows great advantages. In this work, we develop a convenient approach to exfoliate Co(OH)(2) nanosheets into ultrathin Co(OH)(2) nanoflakes through NaBH4-exfoliation method. Moreover, the microstructures of the Co(OH)(2) nanosheets are conveniently controlled by varying the exfoliation time. As a result, the obtained ultrathin Co(OH)(2)-72 h nanosheets deliver the excellent electrochemical performance. In order to improve the energy storage properties, the obtained ultrathin Co(OH)(2) nanosheets are further modified to enhance the conductivity via sulfidation. Consequently, the synthesized Co(OH)(2)-72 h/CoS2 composites exhibit a specific capacitance of 2536 F g(-1) at 1 A g(-1), which is more outstanding than that of Co(OH)(2)-72 h. What's more, the Co(OH)(2)-72 h/CoS2 composites show a capacitance retention of 83.3% after 10 000 cycles. Besides, the assembled asymmetric supercapacitor displays a power density of 482 W kg(-1) at an energy density of 36 Wh kg(-1), demonstrating a large potential for application.
机译：Facile Engineering Ulthathin Nano结构材料对材料科学仍然是一个巨大的挑战。其中，去角质的策略表现出很大的优势。在这项工作中，我们通过NabH 4 - 剥离方法开发了一种方便的剥离Co（OH）（2）纳米烯片（2）纳米蛋白酶的方法。此外，通过改变剥离时间来方便地控制CO（OH）（2）纳米晶片的微观结构。结果，所获得的超薄CO（OH）（2）-72小时纳米蛋白酶提供优异的电化学性能。为了改善能量储存性能，进一步修饰所获得的超薄CO（OH）（2）纳米晶片以通过硫化来增强电导率。因此，合成的CO（OH）（2）-72h / COS2复合材料在1A（-1）下表现出2536fg（-1）的特定电容，其比CO（OH）更加出色（ 2）-72小时更重要的是，CO（OH）（2）-72 h / cos2复合材料显示在10 000个循环后的电容保留为83.3％。此外，组装的不对称超级电容器以36WH kg（-1）的能量密度显示482W kg（-1）的功率密度，证明了施加的潜力。

著录项

  • 来源
    《Nanotechnology》 |2018年第29期|共11页
  • 作者

    Yang Wanjun; Qu Gan; Chen Mingyue; Ma Wenhao; Li Wenhui; Tang Yiwen;

  • 作者单位

    Cent China Normal Univ Coll Phys Sci &

    Technol Inst Nanosci &

    Technol Wuhan 430079 Hubei Peoples R China;

    Shenzhen Univ Collaborat Innovat Ctr Optoelect Sci &

    Technol Key Lab Optoelect Devices &

    Syst Minist Educ &

    Guangdong Prov Coll Optoelect Engn Shenzhen 518060 Peoples R China;

    Cent China Normal Univ Coll Phys Sci &

    Technol Inst Nanosci &

    Technol Wuhan 430079 Hubei Peoples R China;

    Cent China Normal Univ Coll Phys Sci &

    Technol Inst Nanosci &

    Technol Wuhan 430079 Hubei Peoples R China;

    Cent China Normal Univ Coll Phys Sci &

    Technol Inst Nanosci &

    Technol Wuhan 430079 Hubei Peoples R China;

    Cent China Normal Univ Coll Phys Sci &

    Technol Inst Nanosci &

    Technol Wuhan 430079 Hubei Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 特种结构材料;
  • 关键词

    Co(OH)(2); nanosheets; NaBH4-exfoliation; sulfidation; CoS2; asymmetric supercapacitor;

    机译：CO（OH）（2）;纳米蛋白酶;NABH4-去角质;硫化;COS2;不对称超级电容器;

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