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首页> 外文期刊>International Journal of Electrochemical Science >Preparation of Manganese Oxide/Graphene Aerogel and Its Application as an Advanced Supercapacitor Electrode Material
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Preparation of Manganese Oxide/Graphene Aerogel and Its Application as an Advanced Supercapacitor Electrode Material

机译：氧化锰/石墨烯气凝胶的制备及其作为新型超级电容器电极材料的应用

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摘要

Electrochemical supercapacitors (ECs) with high energy density and power capability have demonstrated promising potential in various energy applications. In this study, 3D MnO2/rGO aerogels with excellent electrical conductivity was successfully prepared with a simple hydrothermal method. The as-prepared 3D aerogels could be applied for constructing the electrode of supercapacitor directly without the demand of other additives. Asymmetric supercapacitors were then constructed with Na2SO4 aqueous solution as electrolyte, MnO2/rGO aerogel and rGO aerogel as positive and negative electrode, respectively. The asymmetric supercapacitor demonstrated maximum energy density of 18.2 Wh/kg with power density of 400 W/kg and excellent cycle stability as well.
机译：具有高能量密度和功率能力的电化学超级电容器（EC）在各种能源应用中都显示出了令人鼓舞的潜力。在这项研究中，采用简单的水热法成功制备了具有优异电导率的3D MnO2 / rGO气凝胶。所制备的3D气凝胶可直接用于构建超级电容器的电极，而无需其他添加剂。然后用Na2SO4水溶液作为电解质，MnO2 / rGO气凝胶和rGO气凝胶分别作为正电极和负电极构造不对称超级电容器。非对称超级电容器的最大能量密度为18.2 Wh / kg，功率密度为400 W / kg，循环稳定性也非常好。

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