Hydrothermal Co-doping of Boron and Phosphorus on Porous Carbons and their Electrochemical Properties
Hydrothermal co-doping of boron and phosphorus was used to modify the structure of coconut based porous carbon (PC).XRD,FT-IR and nitrogen adsorption were used to characterize the changes on PCs caused by doping.Galvanostatic charge-discharge,cyclic voltammetry and electrochemical impedance spectrometry analyses were used to investigate the electrochemical properties of PCs.The results showed that the structure and composition of PCs were changed and their electrochemical performances were greatly improved through hydrothermal co-doping of boron and phosphorus.The speufic capacitance of the PC modified with 15(wt)％ boron oxide reached 108F/g,which is 92％ higher than that of urtreated PC.While as for 25(wt)％ boric acid modified PC,the highest spcific capacitance of 98F/g was obtained,83％ higher than that of originel PC.
Porous carbonHydrothermal co-doping of boron and phosphorusElectrochemical property
NETL
NSTL
万方数据
维普
