We demonstrated a simple and environment-friendly method in thepreparation of N-doped carbon/PANI(NCP)composite without binder.The structureand the property of NCP have been characterized by XPS,IR,XRD,SEM,CV,GCD and ...We demonstrated a simple and environment-friendly method in thepreparation of N-doped carbon/PANI(NCP)composite without binder.The structureand the property of NCP have been characterized by XPS,IR,XRD,SEM,CV,GCD and EIS.The results reveal that NCP has high capacitance performance of up to 615 F·g^(-1)at 0.6A·g^(-1).Additionally,the asymmetric NCP_(300)/lcarbon supercapacitor delivers a highcapacitance(111 F·g^(-1)at 1A·g^(-1))and a capacity retention rate of 82%after 1200 cyclesat 2A·g^(-1).The ASC cell could deliver a high energy density of 39.1 W·h·kg^(-1)at a powerdensity of 792.6 W·kg^(-1).展开更多
采用重铬酸钾洗液处理普通碳纸(CP)改性其表面拓扑结构,得到改性碳纸(ACP);并通过电化学沉积法将MnO_2富集在改性碳纸(ACP)表面得到MnO_2/ACP复合碳纸,复合碳纸MnO_2/ACP具有高达746 m F/cm2的分布电容,这个结果主要来源于复合碳纸表面...采用重铬酸钾洗液处理普通碳纸(CP)改性其表面拓扑结构,得到改性碳纸(ACP);并通过电化学沉积法将MnO_2富集在改性碳纸(ACP)表面得到MnO_2/ACP复合碳纸,复合碳纸MnO_2/ACP具有高达746 m F/cm2的分布电容,这个结果主要来源于复合碳纸表面特殊结构:增大的比表面积和改良的电导率。即我们首次报道了一种用于构筑高效超级电容器的新型MnO_2/ACP复合碳纸电极材料。展开更多
基金the Natural Science Foundation of Guangxi Province(2020GXNSFAA159015)the GuangxiKey Laboratory of Optical and Electronic Materials and Devices(20KF-20)+1 种基金the Open Funds of Key Laboratory of New Processing Technology for Nonferrous Metal and Materials of Ministry of Education(19AA-18)the Postgraduate Joint Cultivation Base of the Education Department of Guangxi,and the Opening Project of Guangxi Key Laboratory of Calcium Carbonate Resources Comprehensive Utilization(Hezhou University)(HZXYKFKT201903).
文摘We demonstrated a simple and environment-friendly method in thepreparation of N-doped carbon/PANI(NCP)composite without binder.The structureand the property of NCP have been characterized by XPS,IR,XRD,SEM,CV,GCD and EIS.The results reveal that NCP has high capacitance performance of up to 615 F·g^(-1)at 0.6A·g^(-1).Additionally,the asymmetric NCP_(300)/lcarbon supercapacitor delivers a highcapacitance(111 F·g^(-1)at 1A·g^(-1))and a capacity retention rate of 82%after 1200 cyclesat 2A·g^(-1).The ASC cell could deliver a high energy density of 39.1 W·h·kg^(-1)at a powerdensity of 792.6 W·kg^(-1).
文摘采用重铬酸钾洗液处理普通碳纸(CP)改性其表面拓扑结构,得到改性碳纸(ACP);并通过电化学沉积法将MnO_2富集在改性碳纸(ACP)表面得到MnO_2/ACP复合碳纸,复合碳纸MnO_2/ACP具有高达746 m F/cm2的分布电容,这个结果主要来源于复合碳纸表面特殊结构:增大的比表面积和改良的电导率。即我们首次报道了一种用于构筑高效超级电容器的新型MnO_2/ACP复合碳纸电极材料。