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首页> 外文期刊>ACS Sustainable Chemistry & Engineering >Activated Carbon Fiber Derived from Sisal with Large Specific Surface Area for High-Performance Supercapacitors
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Activated Carbon Fiber Derived from Sisal with Large Specific Surface Area for High-Performance Supercapacitors

机译:来自具有大特定表面积的Sisal的活性炭纤维,用于高性能超级电容器

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摘要

The use of biomass porous carbon materials for energy storage has attracted tremendous attention in current research and has great applications in supercapacitors, lithium batteries, and fuel cells. In this work, sisal-derived activated carbon fibers (SC) are obtained through a simple and convenient method using sisal, a natural biomass material, as a precursor. SC-750 has a high specific surface area (S-BET: 2289 m(2) g(-1)) and an optimized pore size distribution with a total pore volume of 1.23 cm(3) g(-1). For supercapacitors, the obtained SC-750 exhibits excellent specific capacitance and cycle stability. The specific capacitance value is 415 F g(-1) at 0.5 A g(-1),and SC-750 shows a 93% capacitance retention after a long cycle (10,000 cycles) at 10 A g(-1). In addition, the SC-750-based symmetric supercapacitor exhibits a high energy density of 11.9 Wh kg(-1) in 6 M KOH electrolyte. Therefore, the results of this work demonstrate that sisal-derived activated carbon fiber has a great application value in supercapacitors.
机译:生物质多孔碳材料用于储能的储能已经引起了当前研究的巨大关注,并在超级电容器,锂电池和燃料电池中具有很大的应用。在这项工作中,通过使用Sisal,天然生物质材料作为前体来获得Sisal衍生的活性炭纤维(SC)通过简单而方便的方法获得。 SC-750具有高比表面积(S-BET:2289M(2)G(-1))和优化的孔径分布,总孔体积为1.23cm(3)g(-1)。对于超级电容器,所获得的SC-750表现出优异的特定电容和循环稳定性。特定电容值为415V(-1),0.5A(-1),SC-750显示在10A G(-1)的长循环(10,000个循环)之后的93%电容保持。此外,SC-750的对称超级电容器在6M KOH电解质中表现出11.9WH kg(-1)的高能量密度。因此,本作作品的结果表明Sisal衍生的活性炭纤维在超级电容器中具有很大的应用价值。

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