Development of glycerol based carbon having enhanced surface area and capacitance obtained by KOH induced thermochemical activation
作者： Apurva A. Narvekar , J.B. Fernandes , S.P. Naik , S.G. Tilve
DOI: 10.1016/J.MATCHEMPHYS.2021.124238
关键词: Chemical engineering 、 Glycerol 、 Activated carbon 、 BET theory 、 Materials science 、 Infrared spectroscopy 、 Surface modification 、 Capacitance 、 Carbon 、 Volume (thermodynamics)
摘要: Abstract The investigation describes surface modification of a glycerol-based carbon for enhanced capacitance. Glycerol was reacted with sulphuric acid, and the resulting (GBC-120) impregnated known amount KOH. mixture heated at 800 °C in N2 atmosphere to obtain thermochemically activated GBCK. For comparison, GBC-120 also absence KOH prepare GBC-800. infrared spectra display bands 1625 1073 cm−1, respectively due C SO3H functionality. BET analysis revealed that thermochemical activation resulted evolution pores structure relatively large pore volume 1.76 cm3 g−1 area 1653 m2 g−1 GBCK comparison very low (0.06 & 0.08 cm3 g−1) (21 425 m2 g−1) samples GBC-800 respectively. showed significantly higher specific capacitance 219 mF cm−2 as compared commercial CNT.
sci-hub.st 参考文章(53)
F.-Z. Azar, M. A. Lillo-Ródenas, M. C. Román-Martínez, Cellulose hydrolysis catalysed by mesoporous activated carbons functionalized under mild conditions SN Applied Sciences. ,vol. 1, pp. 1- 11 ,(2019) , 10.1007/S42452-019-1776-6
Dan Wu, Xiubo Xie, Yuping Zhang, Dongmei Zhang, Wei Du, Xiaoyu Zhang, Bing Wang, MnO2/Carbon Composites for Supercapacitor: Synthesis and Electrochemical Performance Frontiers in Materials. ,vol. 7, pp. 2- ,(2020) , 10.3389/FMATS.2020.00002
M. Karnan, A. G. Karthick Raj, K. Subramani, S. Santhoshkumar, M. Sathish, The fascinating supercapacitive performance of activated carbon electrodes with enhanced energy density in multifarious electrolytes Sustainable Energy and Fuels. ,vol. 4, pp. 3029- 3041 ,(2020) , 10.1039/C9SE01298B
R Haller, Dyeing as a scientific problem. Chimia. ,vol. 1, pp. 77- 80 ,(1947)
Jean Rouquerol, Françoise Rouquerol, Philip Llewellyn, Guillaume Maurin, Kenneth Sing, Adsorption by Powders and Porous Solids: Principles, Methodology and Applications ,(1998)
P. Ragupathy, H. N. Vasan, N. Munichandraiah, Synthesis and Characterization of Nano- MnO2 for Electrochemical Supercapacitor Studies Journal of The Electrochemical Society. ,vol. 155, ,(2008) , 10.1149/1.2800163
Stefano Mezzavilla, Caterina Zanella, Parakkulam Ramaswamy Aravind, Claudio Della Volpe, Gian Domenico Sorarù, Carbon xerogels as electrodes for supercapacitors. The influence of the catalyst concentration on the microstructure and on the electrochemical properties Journal of Materials Science. ,vol. 47, pp. 7175- 7180 ,(2012) , 10.1007/S10853-012-6662-1
R Saliger, U Fischer, C Herta, J Fricke, High surface area carbon aerogels for supercapacitors Journal of Non-crystalline Solids. ,vol. 225, pp. 81- 85 ,(1998) , 10.1016/S0022-3093(98)00104-5
Yue-feng SU, Feng WU, Li-ying BAO, Zhao-hui YANG, RuO2/activated carbon composites as a positive electrode in an alkaline electrochemical capacitor New Carbon Materials. ,vol. 22, pp. 53- 57 ,(2007) , 10.1016/S1872-5805(07)60007-9
J. M. Miller, B. Dunn, T. D. Tran, R. W. Pekala, Deposition of Ruthenium Nanoparticles on Carbon Aerogels for High Energy Density Supercapacitor Electrodes Journal of The Electrochemical Society. ,vol. 144, ,(1997) , 10.1149/1.1838142