Abstract We report a novel hybrid Sn-doped Co3O4 nanowires synthesized by a facile, one-step hydrothermal growth method on conductive substrates (Ni foam) followed by a post-annealing procedure. The Sn-doped Co3O4 nanowires are used as the electrode materials for supercapacitors. The electrochemical results show 0.4-Sn-doped Co3O4 (the initial adding molar ratio of Sn and Co = 0.4) has higher specific capacitance of 151.8 F/g at 5 mV/s. The nanocomposites presented in this work could be considered as potential electrode materials for next generation supercapacitors in high energy density storage systems.

中文翻译：

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用于超级电容器的混合 Sn 掺杂 Co 3 O 4 纳米线的可控合成和表征

摘要 我们报告了一种新型混合 Sn 掺杂 Co3O4 纳米线，该纳米线通过一种简便的一步水热生长方法在导电基材（泡沫镍）上合成，然后进行后退火程序。Sn掺杂的Co3O4纳米线被用作超级电容器的电极材料。电化学结果表明，0.4-Sn 掺杂的 Co3O4（Sn 和 Co 的初始添加摩尔比 = 0.4）在 5 mV/s 下具有更高的比电容，为 151.8 F/g。在这项工作中提出的纳米复合材料可以被认为是高能量密度存储系统中下一代超级电容器的潜在电极材料。