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Silicon dioxide peristaltic supporting carbon and MoS2 nanosheets co-anchored polyaniline for high-performance supercapacitors
Synthetic Metals ( IF 4.0 ) Pub Date : 2021-04-16 , DOI: 10.1016/j.synthmet.2021.116772
Huihui Wang

Silicon dioxide peristaltic supporting carbon (SPSC) with a high specific surface area and excellent structural stability is successfully obtained by a partial etching strategy. Polyaniline (PANI) is assembled onto the surface of SPSC and finally MoS2 nanosheets are further decorated to obtain SPSC and MoS2 nanosheets co-anchored polyaniline nanocomposites. Benefiting from the unique creepable structure design and synergistic effect produced through the complementary properties of the three components, the fabricated SPSC-PANI-MoS2 electrode demonstrates ideal electrochemical performance for supercapacitors through electrochemical analysis. The nanocomposite exhibits an outstanding capacitive performance of 637.5 F g−1 at a current density of 0.5 A g−1 and the assembled asymmetric supercapacitor with SPSC-PANI-MoS2 and active carbon (AC) as the positive and negative electrodes, respectively, achieves a high energy density of 22.6 Wh kg−1 at a power density of 550.0 W kg−1. The study shows that the peristaltic core support material is valuable in the field of supercapacitor electrode materials, and that it can further demonstrate its own advantages when it is combined with other high-performance materials through clever structural design.



中文翻译:

二氧化硅蠕动支撑碳和MoS 2纳米片共锚定聚苯胺用于高性能超级电容器

通过部分蚀刻策略成功地获得了具有高比表面积和出色结构稳定性的二氧化硅蠕动支撑碳(SPSC)。将聚苯胺(PANI)组装到SPSC的表面上,最后进一步装饰MoS 2纳米片以获得SPSC和MoS 2纳米片共锚定的聚苯胺纳米复合材料。得益于独特的可爬行结构设计和通过三个组件的互补特性产生的协同效应,所制造的SPSC-PANI-MoS 2电极通过电化学分析证明了超级电容器的理想电化学性能。纳米复合材料表现出637.5 F g -1的出色电容性能在电流密度为0.5 A g -1的条件下,以SPSC-PANI-MoS 2和活性炭(AC)分别作为正电极和负电极的组装式不对称超级电容器在a时达到22.6 Wh kg -1的高能量密度。功率密度为550.0 W kg -1。研究表明,蠕动芯支撑材料在超级电容器电极材料领域具有重要价值,并且通过巧妙的结构设计将其与其他高性能材料结合使用,可以进一步展示其自身的优势。

更新日期:2021-04-16
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