典型文献
Recovery and reuse of floc sludge for high-performance capacitors
文献摘要：
In this paper,floc sludge was transformed into porous carbon matrix composites by acidification and KOH activation at high temperature and used as an electrode material for application in capacitors.The effects of different treatment processes on the electrochemical properties of sludge materials were compared.The results of electrochemical tests showed that the sludge electrode exhibited excellent energy storage performance after HNO3 acidification and KOH activation with a mass ratio of 3∶1(KOH/C).The specific capacitance of the sludge electrode reached 287 F/g at a current density of 1 A/g.In addition,the sludge electrode material showed excellent cycle stability(specific capacity retained at 93.4％after 5000 cycles at 5 A/g).Based on XRD,FTIR,SEM,TEM,and BET surface analysis,the morphology of sludge electrode materials can be effectively regulated by chemical pretreatment.The best-performing material showed a 3D porous morphology with a large specific surface area(2588 m2/g)and optimal pore size distribution,improving ion channels and charge conductivity.According to the life cycle assessment of floc sludge utilization,it reduced the resource consumption and toxicity risk by more than 90％compared with ordinary sludge disposal processes.This work provided a cost-effective and eco-friendly sludge reuse method and demonstrated the application potential of sludge-based materials in high-performance supercapacitors.
文献关键词：
中图分类号：
作者姓名：
Di Zhang;Rong Hou;Wenbo Wang;He Zhao
作者机构：
Beijing Engineering Research Center of Process Pollution Control,CAS Key Laboratory of Green Process and Engineering,Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100190,China;University of Chinese Academy of Sciences,Beijing 100049,China
文献出处：
引用格式：
[1]Di Zhang;Rong Hou;Wenbo Wang;He Zhao-.Recovery and reuse of floc sludge for high-performance capacitors)[J].环境科学与工程前沿,2022(06):133-144
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B类：
Recovery,reuse,floc,sludge,high,performance,In,this,paper,was,transformed,into,porous,carbon,matrix,composites,by,acidification,KOH,activation,temperature,used,electrode,application,effects,different,processes,electrochemical,properties,materials,were,compared,results,tests,showed,that,exhibited,excellent,energy,storage,after,HNO3,mass,ratio,specific,capacitance,reached,current,density,addition,stability,capacity,retained,cycles,Based,FTIR,TEM,BET,surface,analysis,morphology,can,effectively,regulated,pretreatment,best,performing,large,area,optimal,pore,size,distribution,improving,channels,charge,conductivity,According,life,assessment,utilization,reduced,resource,consumption,toxicity,risk,more,than,ordinary,disposal,This,work,provided,cost,friendly,method,demonstrated,potential,supercapacitors
AB值：
0.5197
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