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首页> 外文期刊>RSC Advances >Natural stibnite ore (Sb2S3) embedded in sulfur-doped carbon sheets: enhanced electrochemical properties as anode for sodium ions storage
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Natural stibnite ore (Sb2S3) embedded in sulfur-doped carbon sheets: enhanced electrochemical properties as anode for sodium ions storage

机译：嵌入硫掺杂碳板中的天然Stibnite ORE（SB2S3）：将电化学性能提高为钠离子储存的阳极

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摘要

Antimony sulfide (Sb2S3) has drawn widespread attention as an ideal candidate anode material for sodium-ion batteries (SIBs) due to its high specific capacity of 946 mA h g(-1) in conversion and alloy reactions. Nevertheless, volume expansion, a common flaw for conversion-alloy type materials during the sodiation and desodiation processes, is bad for the structure of materials and thus obstructs the application of antimony sulfide in energy storage. A common approach to solve this problem is by introducing carbon or other matrices as buffer material. However, the common preparation of Sb2S3 could result in environmental pollution and excessive energy consumption in most cases. To incorporate green chemistry, natural stibnite ore (Sb2S3) after modification via carbon sheets was applied as a first-hand material in SIBs through a facile and efficient strategy. The unique composites exhibited an outstanding electrochemical performance with a higher reversible capacity, a better rate capability, as well as an excellent cycling stability compared to that of the natural stibnite ore. In short, the study is expected to offer a new approach to improve Sb2S3 composites as an anode in SIBs and a reference for the development of natural ore as a first-hand material in energy storage.
机译：硫化物（SB2S3）由于其在转化和合金反应中的高度的946mA H（-1）的高特异性容量为946mA H（-1），因此硫化物硫化物（SB2S3）被广泛地注意为钠离子电池（SIBS）的理想候选阳极材料。然而，体积膨胀，转换合金型材料在调配和退化过程中的普通缺陷对材料的结构不好，因此阻碍了硫化物在能量储存中的应用。解决这个问题的常见方法是通过将碳或其他矩阵作为缓冲材料引入。然而，在大多数情况下，SB2S3的常见制剂可能导致环境污染和过度的能耗。为了将绿色化学，天然矿石辉锑矿（硫化锑）之后，经由碳片修饰物作为第一手材料中的SIB通过简单而且有效的策略应用。独特的复合材料表现出具有更高的可逆容量，更好的倍率性能，以及优良的循环稳定性出色的电化学性能相比于天然辉锑矿矿石。简而言之，该研究预计将提供一种新的方法来改善SB2S3复合材料作为SIB的阳极以及作为储能中的第一手材料的天然矿石的开发的参考。

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  • 来源
    《RSC Advances》 |2019年第27期|共7页
  • 作者

    Deng Mingxiang; Li Sijie; Hong Wanwan; Jiang Yunling; Xu Wei; Shuai Honglei; Li Hui; Wang Wenlei; Hou Hongshuai; Ji Xiaobo;

  • 作者单位

    Cent South Univ Forestry &

    Technol Coll Sci Changsha 410004 Hunan Peoples R China;

    Cent S Univ Coll Chem &

    Chem Engn Changsha 410083 Hunan Peoples R China;

    Cent S Univ Coll Chem &

    Chem Engn Changsha 410083 Hunan Peoples R China;

    Cent S Univ Coll Chem &

    Chem Engn Changsha 410083 Hunan Peoples R China;

    Cent S Univ Coll Chem &

    Chem Engn Changsha 410083 Hunan Peoples R China;

    Cent S Univ Coll Chem &

    Chem Engn Changsha 410083 Hunan Peoples R China;

    Cent South Univ Forestry &

    Technol Coll Sci Changsha 410004 Hunan Peoples R China;

    Cent South Univ Forestry &

    Technol Coll Sci Changsha 410004 Hunan Peoples R China;

    Cent S Univ Coll Chem &

    Chem Engn Changsha 410083 Hunan Peoples R China;

    Cent S Univ Coll Chem &

    Chem Engn Changsha 410083 Hunan Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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