典型文献
Entire onion source-derived redox porous carbon electrodes towards efficient quasi-solid-state solar charged hybrid supercapacitor
文献摘要：
Biomass-derived electrodes inherently containing redox-active species have gained extensive attention re-cently due to their availability,eco-friendliness,sustainability,and low cost.We report novel binder-free faradic surface redox onion-derived carbon positive electrode with nano regime particles by hydrothermal synthesis and Na+and Cl-ions diffused porous carbon negative electrode via a carbonization method.Energy-dispersive X-ray spectroscopy and X-ray photoelectron spectroscopy confirmed the presence of oxidized sulfur and(N-6)pyridinic N-based redox groups inherently present in the as-prepared com-pounds.The electrochemical analysis of the positive electrode revealed its faradic redox type of energy storage mechanism with an excellent specific capacitance of 1805 F g-1 at the current density of 3 A g-1 as well as appreciable long-term cycling stability(76.8％retention after 10000 charge-discharge cycles).Meanwhile,the negative electrode exhibited a maximum specific capacitance of 373 F g-1 at 1 A g-1 with outstanding long-term cycling stability(100.7％retention after 10000 cycles).The fabricated polyvinyl alcohol-potassium hydroxide gel electrolyte-based quasi-solid-state hybrid supercapacitor(QHSC)deliv-ered excellent energy density and power density of 19.94 Wh kg-1 and 374.99 W kg-1,respectively with an ultralong cyclic life(102.3％retention)over 10000 cycles.Furthermore,the QHSC was connected to a solar panel to store renewable energy.Solar charged QHSC effectively powered a speedometer,enlighten-ing its potential application in advanced sustainable energy storage systems.
文献关键词：
中图分类号：
作者姓名：
Edugulla Girija Shankar;Amit Kumar Das;Jae Su Yu
作者机构：
Department of Electronics and Information Convergence Engineering,Institute for Wearable Convergence Electronics,Kyung Hee University,Gyeonggi-do 17104,Republic of Korea
文献出处：
引用格式：
[1]Edugulla Girija Shankar;Amit Kumar Das;Jae Su Yu-.Entire onion source-derived redox porous carbon electrodes towards efficient quasi-solid-state solar charged hybrid supercapacitor)[J].材料科学技术（英文版）,2022(30):118-127
A类：
faradic,QHSC,speedometer
B类：
Entire,onion,source,derived,redox,porous,electrodes,towards,efficient,quasi,solid,state,solar,charged,hybrid,supercapacitor,Biomass,inherently,containing,active,species,have,gained,extensive,attention,cently,due,their,availability,eco,friendliness,sustainability,low,cost,We,report,novel,binder,free,surface,positive,nano,regime,particles,by,hydrothermal,synthesis,Na+and,Cl,ions,diffused,negative,via,carbonization,method,Energy,dispersive,ray,spectroscopy,photoelectron,confirmed,presence,oxidized,sulfur,pyridinic,groups,present,prepared,com,pounds,electrochemical,analysis,revealed,its,type,energy,storage,mechanism,excellent,specific,capacitance,current,density,well,appreciable,term,cycling,stability,retention,after,discharge,cycles,Meanwhile,exhibited,maximum,outstanding,fabricated,polyvinyl,alcohol,potassium,hydroxide,gel,electrolyte,deliv,Wh,respectively,ultralong,cyclic,life,over,Furthermore,was,connected,panel,store,renewable,Solar,effectively,powered,enlighten,potential,application,advanced,sustainable,systems
AB值：
0.606887
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