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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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Antimony sulfide (Sb _(2) S _(3) ) 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 Sb _(2) S _(3) could result in environmental pollution and excessive energy consumption in most cases. To incorporate green chemistry, natural stibnite ore (Sb _(2) S _(3) ) 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 Sb _(2) S _(3) 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（Sb _（2）S _（3））由于其在转化率高的高度的946mA Hg〜（α1）的高特异性容量而被广泛地注意为钠离子电池（SIB）的理想候选阳极材料。合金反应。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。但是，在大多数情况下，Sb _（2）S _（3）的常见制剂可能导致环境污染和过量的能耗。为了纳入绿色化学，通过碳板改性后的天然Stibnite矿石（Sb _（2）S _（3））通过容易和有效的策略将通过碳板作为第一手材料应用。独特的复合材料表现出具有更高的可逆容量，更好的速率能力，以及与天然Stibnite矿石相比具有优异的循环稳定性的卓越电化学性能。简而言之，预计该研究将提供一种改善Sb _（2）S _（3）复合材料作为SIBs中的阳极的新方法，以及作为储能储存中的第一手材料的自然矿石的参考。

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