title: Porous Functionalized Self-Standing Carbon Fiber Paper Electrodes for High-Performance Capacitive Energy Storage.
abstract: A facile and cost-efficient approach to functionalize raw carbon fiber paper (CFP) used for a self-standing capacitive electrode has been proposed here. Benefiting from the improved specific surface area and surface functional groups, the functionalized CFP (F-CFP) showed much enhanced capacitive performance, 3 orders of magnitude higher than that of the raw CFP. It delivered the areal capacitance of 1275 mF cm-2at 5 mA cm-2with a rather wide voltage window of 1.4 V (-0.4 to 1 V vs Ag/AgCl) in 0.5 M H2SO4. However, in a neutral 1 M Na2SO4aqueous solution, although the areal capacitance of 1115 mF cm-2at 3 mA cm-2is slightly smaller, the potential window is much wider (2 V, -1 to 1 V vs Ag/AgCl), indicating a high overpotential of hydrogen evolution. The areal capacitance was still as high as 722 mF cm-2at a very fast charge-discharge current density of 50 mA cm-2, and about 66% of the initial capacitance (at 3 mA cm-2) was remained in Na2SO4, indicating considerable rate capability.
authors.affiliation: Guanzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology , Guangzhou 510006, China.
authors.forename: Yuanyuan
authors.initials: Y
authors.lastname: Zhu
authors.affiliation: Guanzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology , Guangzhou 510006, China.
authors.forename: Shuang
authors.identifier: http://orcid.org/0000-0001-6301-175X
authors.initials: S
authors.lastname: Cheng
authors.affiliation: Guanzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology , Guangzhou 510006, China.
authors.forename: Weijia
authors.identifier: http://orcid.org/0000-0003-4339-0435
authors.initials: W
authors.lastname: Zhou
authors.affiliation: Guanzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology , Guangzhou 510006, China.
authors.forename: Jin
authors.initials: J
authors.lastname: Jia
authors.affiliation: Guanzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology , Guangzhou 510006, China.
authors.forename: Lufeng
authors.initials: L
authors.lastname: Yang
authors.affiliation: Guanzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology , Guangzhou 510006, China.
authors.forename: Minghai
authors.initials: M
authors.lastname: Yao
authors.affiliation: Guanzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology , Guangzhou 510006, China.
authors.forename: Mengkun
authors.initials: M
authors.lastname: Wang
authors.affiliation: Guanzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology , Guangzhou 510006, China.
authors.forename: Peng
authors.initials: P
authors.lastname: Wu
authors.affiliation: Guanzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology , Guangzhou 510006, China.
authors.forename: Haowei
authors.initials: H
authors.lastname: Luo
authors.affiliation: Guanzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology , Guangzhou 510006, China.|School of Materials Science and Engineering, Georgia Institute of Technology , Atlanta, Georgia 30332-0245, United States.
authors.forename: Meilin
authors.identifier: http://orcid.org/0000-0002-6188-2372
authors.initials: M
authors.lastname: Liu
keywords: carbon fiber paper; functionalize; supercapacitors; wide potential window, high capacity