• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Applied Surface Science >Biomass-derived nitrogen/oxygen co-doped hierarchical porous carbon with a large specific surface area for ultrafast and long-life sodium-ion batteries
【24h】

Biomass-derived nitrogen/oxygen co-doped hierarchical porous carbon with a large specific surface area for ultrafast and long-life sodium-ion batteries

机译：生物质衍生的氮/氧共掺杂分级多孔碳，具有大的比表面积，适用于超快和长寿命的钠离子电池

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

Biomass derived porous carbons are economic and attractive materials for anode electrodes in sodium- ion batteries. In this work, a novel porous carbon has been prepared through activation of longan shell, which demonstrates an interconnected hierarchical porosity comprised of macro-, meso- and micro- pores as well with a high specific surface area of 2990 m(2) g(-1). Benefiting from the unique pore structure and oxygen and nitrogen dual doping, a well-developed ionic and electronic conductivity is achieved. Remarkably, it exhibits an excellent cycling stability with a capacity up to 345.9 mAh g(-1) at a current density of 0.1 A g(-1), and maintains a capacity of 304.2 mAh g(-1) even at a high current density of 5 A g(-1) after 1000 cycles as anodes for sodium-ion batteries. These results indicate that the fabricated porous carbon could be a promising electrode material for sodium- ion batteries. The mechanism of such high sodium-ion storage was also discussed with the scan- rate- dependent CV curves to quantify the pseudo-capacitive contribution.
机译：生物质衍生的多孔碳是钠离子电池阳极电极的经济且有吸引力的材料。在这项工作中，通过激活龙眼壳制备了一种新型的多孔碳，它证明了由大孔，中孔和微孔以及2990 m（2）g（2）的高比表面积组成的相互连接的分层孔隙率。 -1）。得益于独特的孔结构以及氧和氮双重掺杂，可以实现发达的离子和电子导电性。值得注意的是，它具有出色的循环稳定性，在电流密度为0.1 A g（-1）时容量高达345.9 mAh g（-1），即使在高电流下也保持304.2 mAh g（-1）的容量。作为钠离子电池的阳极，经过1000次循环后的密度为5 A g（-1）。这些结果表明，所制造的多孔碳可能是钠离子电池的有前途的电极材料。还使用扫描速率相关的CV曲线讨论了如此高的钠离子存储量的机制，以量化伪电容的贡献。

著录项

  • 来源
    《Applied Surface Science》 |2018年第31期|713-719|共7页
  • 作者

    Luo Donghai; Han Pei; Shi Ludi; Huang Jintao; Yu Jiali; Lin Yemao; Du Jianguo; Yang Bo; Li Cuihua; Zhu Caizhen; Xu Jian;

  • 作者单位

    Shenzhen Univ, Coll Chem & Environm Engn, Inst Low Dimens Mat Genome Initiat, Shenzhen 518060, Peoples R China;

    Shenzhen Univ, Coll Chem & Environm Engn, Inst Low Dimens Mat Genome Initiat, Shenzhen 518060, Peoples R China;

    Shenzhen Univ, Coll Chem & Environm Engn, Inst Low Dimens Mat Genome Initiat, Shenzhen 518060, Peoples R China;

    Shenzhen Univ, Coll Chem & Environm Engn, Inst Low Dimens Mat Genome Initiat, Shenzhen 518060, Peoples R China;

    Shenzhen Univ, Coll Chem & Environm Engn, Inst Low Dimens Mat Genome Initiat, Shenzhen 518060, Peoples R China;

    Shenzhen Univ, Coll Chem & Environm Engn, Inst Low Dimens Mat Genome Initiat, Shenzhen 518060, Peoples R China;

    Shenzhen Univ, Coll Chem & Environm Engn, Inst Low Dimens Mat Genome Initiat, Shenzhen 518060, Peoples R China;

    Shenzhen Univ, Coll Chem & Environm Engn, Inst Low Dimens Mat Genome Initiat, Shenzhen 518060, Peoples R China;

    Shenzhen Univ, Coll Chem & Environm Engn, Inst Low Dimens Mat Genome Initiat, Shenzhen 518060, Peoples R China;

    Shenzhen Univ, Coll Chem & Environm Engn, Inst Low Dimens Mat Genome Initiat, Shenzhen 518060, Peoples R China;

    Shenzhen Univ, Coll Chem & Environm Engn, Inst Low Dimens Mat Genome Initiat, Shenzhen 518060, Peoples R China;

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

    Nitrogen/oxygen co-doping; Biomass carbon; Anode; Lithium-ion batteries;

    机译：氮氧共掺杂生物质碳阳极锂离子电池;

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