This work represents the design of superior supercapacitor electrode that comprised of 3D cloud like silver cobalt oxide/cobalt oxide (AgCoO2‐Co3O4) and carbon architecture. AgCoO2‐Co3O4/C architecture can be fabricated from Co‐Ag nitrate precursors with the addition of carboxymethyl cellulose followed by annealing. Mesoporous 3D cloudy architecture provides higher specific capacitance (575 F g‐1 at a scan rate of 2 mV s‐1) and rate performance (666 F g‐1 at a current density of 1 A g‐1). The combined effect of AgCoO2 embedded Co3O4 and carboxymethyl cellulose (carbon) highly favours for outstanding cycle life (around 1 % capacitance degradation even after 5000 cycles). Presence of such porous 3D architecture with carbon backbone delivers admirable energy/power density. Also, an advanced asymmetric supercapacitor with an operating range of 1.2 V is designed by utilizing this porous 3D cloudy architecture as positive electrode and activated carbon as negative electrode. The fabricated design shows a robust energy density of 17 W h kg‐1 with a high power density of 166 W kg‐1 at a current density of 1 A g‐1. The findings of the current study underline the potential of AgCoO2‐Co3O4/C electrodes for supercapacitor applications.

中文翻译：

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AgCoO2‐Co3O4 / CMC多云架构作为不对称超级电容器的高性能电极

这项工作代表了超级超级电容器电极的设计，该超级电容器电极由3D云组成，例如氧化银钴/氧化钴（AgCoO2-Co3O4）和碳结构。AgCoO2-Co3O4 / C体系结构可以由硝酸硝酸Co-Ag前体制成，加入羧甲基纤维素然后进行退火。介孔3D浑浊架构可提供更高的比电容（扫描速度为2 mV s-1时为575 F g-1）和速率性能（电流密度为1 A g-1时为666 F g-1）。嵌入AgCoO2的Co3O4和羧甲基纤维素（碳）的综合效果极大地延长了循环寿命（即使在5000次循环后电容衰减约1％）。这种具有碳骨架的多孔3D体系结构的存在可提供令人赞叹的能量/功率密度。另外，一种工作范围为1的高级不对称超级电容器。通过使用这种多孔3D浑浊体系结构作为正极并使用活性炭作为负极来设计2V。制成的设计显示出17 W h kg-1的强大能量密度，在1 A g-1的电流密度下具有166 W kg-1的高功率密度。当前研究的结果强调了AgCoO2-Co3O4 / C电极在超级电容器应用中的潜力。