Abstract
Polyimide derived activated carbon was prepared by carbonization and KOH activation, which was used for electrode material of electric double-layer capacitors.Its pore structure and surface chemical property were studied by DFT and XPS,respectively,and its electrochemical properties were studied by electrochemical methods,such as,charge-discharge of constant current.The results show that both the nitrogen content and the porosity of sample CPI affect its gravimetric capacitance.After activation,the specific areas of sample API reach 1941m~2/g,the micropore formed is all less than 2nm.The effect of nitrogen atom can be ignored.Its gravimetric capacitance reach 300F/g with the discharging current density of 50mA/g,and remain 86.1% of its capacitance when the current density reaches 1000mA/g.The results of impedance also show that sample API has good electric double-layer performance which is novel electrode material for electric double layer capacitor.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
