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首页> 外文期刊>Journal of porous materials >Hierarchical porous carbons derived from ionically-crosslinked alginates for lithium-ion batteries with superior electrochemical performance
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Hierarchical porous carbons derived from ionically-crosslinked alginates for lithium-ion batteries with superior electrochemical performance

机译：衍生自用于锂离子电池的离子交联藻酸盐的分层多孔碳，具有优异的电化学性能

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摘要

Hierarchical porous carbons are successfully prepared from a readily water-soluble biomass sodium alginate with the assistance of Fe3+ and Ni2+ via a simple sol-gel method. The drying method and separation ways of ionically-crosslinked alginate gels could significantly affect the morphologies of the precursors and the porous structures for the carbons. By adjusting the amounts of FeCl(3)6H(2)O, we can prepare hierarchical porous carbons and target the surface area and pore volume. The results show that the porous carbons exhibit superior electrochemical behaviors when they are used as anode materials for lithium-ion batteries. Both the porous structures and the assembly way of graphene sheets in the carbon materials play important roles in their electrochemical properties.
机译：通过简单的溶胶 - 凝胶法通过Fe3 +和Ni2 +的易于水溶性生物量藻酸盐成功地制备等级多孔碳。离子交联藻酸盐凝胶的干燥方法和分离方式可以显着影响前体的形态和碳的多孔结构。通过调节FECL（3）6H（2）O的量，我们可以制备分层多孔碳并靶向表面积和孔体积。结果表明，当它们用作锂离子电池的阳极材料时，多孔碳的表现出优异的电化学行为。碳材料中石墨烯片的多孔结构和装配方式都在其电化学性质中起重要作用。

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  • 来源
    《Journal of porous materials》 |2019年第4期|987-993|共7页
  • 作者

    Li Xiuli; Tang Yuwei; Zhang Feng; Chen Lifeng; Wang Xiuying;

  • 作者单位

    Dalian Polytech Univ Sch Light Ind & Chem Engn Dalian 116034 Peoples R China;

    Dalian Polytech Univ Sch Text & Mat Engn Dalian 116034 Peoples R China;

    Dalian Polytech Univ Sch Light Ind & Chem Engn Dalian 116034 Peoples R China;

    Dalian Polytech Univ Sch Light Ind & Chem Engn Dalian 116034 Peoples R China;

    Dalian Polytech Univ Sch Light Ind & Chem Engn Dalian 116034 Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Nanostructures; Biomass; Graphene; Hierarchical porous carbons;

    机译：纳米结构;生物质;石墨烯;等级多孔碳;

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