Simple synthesis of hierarchical porous carbon with developed graphene domains for high performance supercapacitors
| العنوان: | Simple synthesis of hierarchical porous carbon with developed graphene domains for high performance supercapacitors |
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| المؤلفون: | Yan Song, Qingchao Fan, Jingli Shi, Ruihui Gan, Chengbiao Wei, Chang Ma, Xu Jiankang |
| المصدر: | Journal of Porous Materials. 27:515-524 |
| بيانات النشر: | Springer Science and Business Media LLC, 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | Supercapacitor, Materials science, Graphene, Mechanical Engineering, chemistry.chemical_element, 02 engineering and technology, Electrolyte, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, law.invention, Chemical engineering, chemistry, Mechanics of Materials, law, Specific surface area, Gravimetric analysis, General Materials Science, 0210 nano-technology, Porosity, Carbon, Pyrolysis |
| الوصف: | Hierarchical porous carbons with localized graphene structure, high specific surface area and large pore volume are simply synthesized by the means of short-time pyrolysis at moderate temperatures and acid-washing. Citric acid and cobalt acetate were used as carbon source and template precursor, the effect of mass ratio of citric acid/cobalt acetate on the microstructures of the hierarchical porous carbon, including morphology, crystal structure, porosity, specific surface area and surface chemistry, have been investigated. The resultant hierarchical porous carbons possess high specific surface area of 1411 m2/g, a large pore volume of 2.34 cm3/g. Both three-electrode and two-electrode test were conducted to evaluate capacitive performance of the hierarchical porous carbon. The test of three-electrode system with 6 M KOH aqueous solution as electrolyte, the hierarchical porous carbon shows superior specific capacitance up to 239 F/g at 0.1 A/g. In 1 M Na2SO4 aqueous electrolyte. Moreover, the hierarchical porous carbon based two-electrode supercapacitors presents gravimetric energy density of 11.6 Wh/kg and power density of 250 W/kg. This work developed a facile way for high surface areas and large pore volume electrode materials for energy storage devices. |
| تدمد: | 1573-4854 1380-2224 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::d269289732879af275eefb14ce77f74d https://doi.org/10.1007/s10934-019-00833-8 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........d269289732879af275eefb14ce77f74d |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 15734854 13802224 |
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