title: Electrophoretically deposited graphene oxide and carbon nanotube composite for electrochemical capacitors.
abstract: We report a scalable one-step electrode fabrication approach for synthesizing composite carbon-based supercapacitors with synergistic outcomes. Multi-walled carbon nanotubes (MWCNTs) were successfully integrated into our modified electrophoretic deposition process to directly form composite MWCNT-GO electrochemical capacitor electrodes (where GO is graphene oxide) with superior performance to solely GO electrodes. The measured capacitance improved threefold, reaching a maximum specific capacitance of 231 F g(-1). Upon thermal reduction, MWCNT-GO electrode sheet resistance decreased by a factor of 8, significantly greater than the 2× decrease of those without MWCNTs.
authors.affiliation: Department of Mechanical Engineering, Columbia University, New York, NY 10027, USA.
authors.forename: Obafunso A
authors.initials: OA
authors.lastname: Ajayi
authors.forename: Daniel H
authors.initials: DH
authors.lastname: Guitierrez
authors.forename: David
authors.initials: D
authors.lastname: Peaslee
authors.forename: Arthur
authors.initials: A
authors.lastname: Cheng
authors.forename: Theodore
authors.initials: T
authors.lastname: Gao
authors.forename: Chee Wei
authors.initials: CW
authors.lastname: Wong
authors.forename: Bin
authors.initials: B
authors.lastname: Chen