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Preparation of activated carbon derived from oil palm empty fruit bunches and its modification by nitrogen doping for supercapacitors
Journal of Porous Materials ( IF 2.5 ) Pub Date : 2020-08-11 , DOI: 10.1007/s10934-020-00957-2
Huyen Tran Thi Dieu , Kanruethai Charoensook , Hung-Chun Tai , Yao-Tung Lin , Yuan-Yao Li

Activated carbon (AC) is one of the most promising active materials for high-performance supercapacitors (SCs) owing to its high specific surface area and theoretical specific capacity. In this study, oil palm empty fruit bunches (EFBs), which are agricultural residue, are employed as a precursor to produce AC using a series of cleaning, carbonization, and chemical activation processes. The as-produced AC has a specific surface area of 2774 m2/g, which is very high among AC produced from biomass materials. To enhance the performance of SCs, the AC is modified by nitrogen doping. The specific capacities of AC and nitrogen-doped AC are found to be 182 to 217 F/g, respectively, at a current density of 0.5 A/g in 6 M KOH aqueous electrolyte. We demonstrate that agricultural waste can be processed into AC with a high specific surface area for SC applications.



中文翻译:

油棕空果串活性炭的制备及其氮掺杂对超级电容器的改性

活性炭(AC)由于其高的比表面积和理论比容量,是用于高性能超级电容器(SC)的最有希望的活性材料之一。在这项研究中,作为农业残留物的油棕空果串(EFB)被用作通过一系列清洁,碳化和化学活化过程生产AC的前体。所生产的AC的比表面积为2774 m 2/ g,在由生物质材料生产的AC中非常高。为了增强SC的性能,通过氮掺杂对AC进行了改性。发现在6 M KOH水性电解质中,电流密度为0.5 A / g时,交流电和掺氮交流电的比容量分别为182至217 F / g。我们证明,农业废料可以被加工成具有较高比表面积的用于AC的AC。

更新日期:2020-08-11
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