一种新型的带刺玫瑰状三元MoS@碳@聚苯胺纳米复合材料，作为可充电镁电池阴极，具有稳定的容量和低温性能。
A novel rose-with-thorn ternary MoS@carbon@polyaniline nanocomposite as a rechargeable magnesium battery cathode displaying stable capacity and low-temperature performance.
作者信息
Liu Jinyun, Zhong Yan, Li Xuelian, Ying Tongxin, Han Tianli, Li Jinjin
机构信息
Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Provincial Engineering Laboratory for New-Energy Vehicle Battery Energy-Storage Materials, College of Chemistry and Materials Science, Anhui Normal University Wuhu Anhui 241002 P. R. China
National Key Laboratory of Science and Technology on Micro/Nano Fabrication, Department of Micro/Nano-electronics, Shanghai Jiao Tong University Shanghai 200240 P. R. China
出版信息
Nanoscale Adv. 2021 Aug 20;3(19):5576-5580. doi: 10.1039/d1na00445j. eCollection 2021 Sep 28.
Developing high-performance cathode materials for magnesium (Mg) batteries is of great significance. Here, a novel rose-with-thorn ternary MoS@C@polyaniline (PANI) nanocomposite composed of carbon and PANI nanoneedles co-coated on rose-like MoS is developed. The conductive PANI needles on the surface of MoS improve the conductivity, and the inner MoS is wrapped by a carbon layer which is beneficial for the aniline coating. The MoS@C@PANI-based Mg battery cathode displays a good capacity of 114 mA h g after 100 cycles, and a recoverable rate-performance after repeated measurements. In addition, a stable capacity of 105 mA h g when cycled at a low temperature of -5 °C is also achieved, indicating good potential for applications.
开发用于镁电池的高性能阴极材料具有重要意义。在此，我们制备了一种新型的带刺玫瑰状三元MoS@C@聚苯胺（PANI）纳米复合材料，它由碳和聚苯胺纳米针共同包覆在玫瑰状MoS上构成。MoS表面的导电聚苯胺针提高了导电性，内部的MoS被碳层包裹，这有利于苯胺涂层。基于MoS@C@PANI的镁电池阴极在100次循环后显示出114 mA h g的良好容量，并且在重复测量后具有可恢复的倍率性能。此外，在-5°C的低温下循环时也实现了105 mA h g的稳定容量，表明其具有良好的应用潜力。
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