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典型文献
Walnut septum-derived hierarchical porous carbon for ultra-high-performance supercapacitors
文献摘要:
The conversion of biomass waste into eco-nomical and high-performance energy storage devices receives significant attention.Herein,a facile and green method to prepare porous active carbon from walnut sep-tum is applied to the electrode materials of supercapacitors.The effect of chemical etching reagent(KOH)on the microstructure and specific capacitance of the porous car-bon are explored.The modified BC-2.0,with a KOH/walnut septum mass ratio of 2∶1,exhibits large specific surface area of 1003.9 m2·g-1 with hierarchical micro-mesoporous structures.BC-2.0 reveals a superior specific capacitance of 457 F·g-1 at 1 A·g-1.The flexible sym-metric supercapacitor in gel electrolyte(KOH/PVA)exhi-bits considerable synergetic energy-power output performance.The results indicate that walnut septum is a better precursor to obtain activated carbons relative to other biomass carbon sources.The large mesoporosity after activation effectively boosts the electrochemical properties of supercapacitor.Consequently,the walnut septum has potential to be a superior electrode material for supercapacitors.
文献关键词:
作者姓名:
Meng Zhou;Sheng-Xue Yan;Qing Wang;Ming-Xiu Tan;Deng-Yang Wang;Zi-Qi Yu;Shao-Hua Luo;Ya-Hui Zhang;Xin Liu
作者机构:
School of Materials Science and Engineering,Northeastern University,Shenyang 110819,China;State Key Laboratory of Rolling and Automation,Northeastern University,Shenyang 110819,China;School of Resources and Materials,Northeastern University at Qinhuangdao,Qinhuangdao 066004,China;Hebei Key Laboratory of Dielectric and Electrolyte Functional Material,Qinhuangdao 066004,China;Qinhuangdao Key Laboratory of Advanced Energy Storage and Conversion Technology,Qinhuangdao 066004,China
引用格式:
[1]Meng Zhou;Sheng-Xue Yan;Qing Wang;Ming-Xiu Tan;Deng-Yang Wang;Zi-Qi Yu;Shao-Hua Luo;Ya-Hui Zhang;Xin Liu-.Walnut septum-derived hierarchical porous carbon for ultra-high-performance supercapacitors)[J].稀有金属(英文版),2022(07):2280-2291
A类:
nomical,mesoporosity
B类:
Walnut,septum,derived,hierarchical,ultra,high,performance,supercapacitors,conversion,biomass,waste,into,eco,energy,storage,devices,receives,significant,attention,Herein,facile,green,method,prepare,active,from,walnut,is,applied,electrode,materials,etching,reagent,KOH,microstructure,specific,capacitance,explored,modified,BC,ratio,exhibits,large,surface,area,mesoporous,structures,reveals,superior,flexible,sym,metric,gel,electrolyte,PVA,considerable,synergetic,power,output,results,indicate,that,better,precursor,obtain,activated,carbons,relative,other,sources,after,activation,effectively,boosts,electrochemical,properties,Consequently,has,potential
AB值:
0.532586
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