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Growth of Vertically Aligned Tunable Polyaniline on Graphene/ZrO_2 Nanocomposites for Supercapacitor Energy-Storage Application

机译:石墨烯/ ZrO_2纳米复合材料上垂直取向可调谐聚苯胺的生长,用于超级电容器储能应用

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摘要

In-situ hydrothermal method is employed to synthesize graphene/zirconium oxide composite from respective precursors graphene oxide and zirconium oxy-nitrate. In this method, the graphene oxide is reduced itself to graphene and simultaneously metal oxide gets anchor on the graphene sheets. A novel method is also developed for the preparation of vertically aligned tunable polyaniline on the graphene/zirconium oxide nanocomposite, which leads to achieve high surface area (207.1 m~2 g~(-1)), high electrical conductivity (70.8 S cm~(-1)), high specific capacitance (1359.99 Fg~(-1) at 1 mV s~(-1)), and high electrochemical performances as supercapacitor electrode materials. This vertically aligned conducting polymer gets easy contact with electrolyte ions and provides numerous redox active sites during charging and discharging. Moreover, such a simple and low cost assembly approach can be a pioneer for the large-scale production of various functional architectures for energy storage and conversions.
机译:采用原位水热法由相应的前体氧化石墨烯和硝酸氧锆合成了石墨烯/氧化锆复合材料。在这种方法中,氧化石墨烯本身被还原为石墨烯,同时金属氧化物锚定在石墨烯片上。还开发了一种在石墨烯/氧化锆纳米复合材料上制备垂直取向可调谐聚苯胺的新方法,该方法可实现高表面积(207.1 m〜2 g〜(-1)),高电导率(70.8 S cm〜 (-1)),高比电容(在1 mV s〜(-1)时为1359.99 Fg〜(-1))和作为超级电容器电极材料的高电化学性能。这种垂直排列的导电聚合物易于与电解质离子接触,并在充电和放电期间提供大量的氧化还原活性位。而且,这种简单且低成本的组装方法可以成为大规模生产用于能量存储和转换的各种功能架构的先驱。

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  • 来源
    《Advanced Functional Materials》 |2014年第9期|1312-1324|共13页
  • 作者单位

    Materials Science Centre Indian Institute ofTechnology Kharagpur Kharagpur, 721302, India;

    Materials Science Centre Indian Institute ofTechnology Kharagpur Kharagpur, 721302, India;

    Materials Science Centre Indian Institute ofTechnology Kharagpur Kharagpur, 721302, India;

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