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首页> 外文期刊>Journal of Energy Storage >Augmenting the nickel-cobalt layered double hydroxide performance: Virtue of doping
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Augmenting the nickel-cobalt layered double hydroxide performance: Virtue of doping

机译:增强镍 - 钴层次的双氢氧化物性能:掺杂的美德

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摘要

Doping is the most effective strategy to improve the electrochemical performance of supercapacitors. Herein, we report the doping effect of Magnesium on structural instability of Ni-Co LDHs as the supercapacitor electrode material. The morphology of different compositions of magnesium are studied. The derived material with the Ni:Mg ratio of 1:1 displayed an excellent specific capacity of 624 Cg(-1) at current density of 10 Ag-1. Moreover, the specific capacity remained at 80% after 3000 cycles which suggest excellent cycle stability. An asymmetrc device was fabricated with N/M-2 as positive electrode and activated carbon cloth as negative electrode, which displayed a specific capacitance of 200 Fg(-1) at 0.25 Ag-1 with the energy density of 28 Whkg(-1). The device showed the capacitance retention of about 99% after 1000 cycles at 1 Ag-1. Therefore, improved structural
机译:掺杂是提高超级电容器电化学性能的最有效的策略。在此,我们报告了镁对Ni-Co LDHS作为超级电容器电极材料的结构不稳定性的掺杂效果。研究了不同组成的镁的形态。具有Ni:Mg比为1:1的衍生材料在10%Ag-1的电流密度下显示出优异的624cg(-1)的优异特性容量。此外,在3000个循环后,特定容量保持在80%,这表明了良好的循环稳定性。用N / M-2作为正极和活性碳布作为负电极制造的无双滤网,其在0.25Ag-1的比0.25 Whkg(-1)的能量密度显示200fg(-1)的特定电容。 。该器件在1〜Ag-1下循环后,电容保持约为99%。因此,改进了结构

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