title: Elastic and hierarchical porous carbon nanofibrous membranes incorporated with NiFe2O4 nanocrystals for highly efficient capacitive energy storage.
abstract: Flexible membranes created from porous carbon nanofibers (CNFs) hold great promise in the next generation wearable energy storage devices, but challenges still remain due to the poor mechanical properties of porous carbon nanofibers. Here, we report a facile strategy to fabricate elastic and hierarchical porous CNF membranes with NiFe2O4 nanocrystals embedded via multicomponent electrospinning and nano-doping methods. Benefiting from the scattering effect of NiFe2O4 nanocrystals and graphitized carbon layers for the condensed stress, the resultant CNF membranes exhibit an enhanced elasticity with a bending radius <12 μm, rapid recovery from the deformations, and a superior softness. Quantitative pore size distribution and fractal analysis reveal that the CNFs possessed tunable porous structures with a high surface area of 493 m(2) g(-1) and a pore volume of 0.31 cm(3) g(-1). Benefiting from the robust mechanical stability, hierarchical porous structures and good electrochemical properties, the NiFe2O4 doped CNF membranes demonstrate a high electrical capacitance of 343 F g(-1), and good reversibility with a cycling efficiency of 97.4% even after 10,000 cycles. The successful synthesis of elastic porous CNF membranes also provided a versatile platform for the design and development of functional CNF based materials for various applications.
authors.affiliation: Key Laboratory of High Performance Fibers & Products, Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China. binding@dhu.edu.cn yujy@dhu.edu.cn.
authors.forename: Jianlong
authors.initials: J
authors.lastname: Ge
authors.affiliation: Key Laboratory of High Performance Fibers & Products, Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China. binding@dhu.edu.cn yujy@dhu.edu.cn.
authors.forename: Gang
authors.initials: G
authors.lastname: Fan
authors.affiliation: Key Laboratory of High Performance Fibers & Products, Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China. binding@dhu.edu.cn yujy@dhu.edu.cn.
authors.forename: Yang
authors.initials: Y
authors.lastname: Si
authors.affiliation: College of Textiles, Zhongyuan University of Technology, Zhengzhou, 450007, China.
authors.forename: Jianxin
authors.initials: J
authors.lastname: He
authors.affiliation: Department of BIN Fusion Technology, Chonbuk National University, Jeonju 561-756, Republic of Korea.
authors.forename: Hak-Yong
authors.initials: HY
authors.lastname: Kim
authors.affiliation: Key Laboratory of High Performance Fibers & Products, Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China. binding@dhu.edu.cn yujy@dhu.edu.cn and College of Textiles, Zhongyuan University of Technology, Zhengzhou, 450007, China.
authors.forename: Bin
authors.initials: B
authors.lastname: Ding
authors.affiliation: Petrochemical Research Chair, Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia. ssdeyab@ksu.edu.sa.
authors.forename: Salem S
authors.initials: SS
authors.lastname: Al-Deyab
authors.affiliation: Petrochemical Research Chair, Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia. ssdeyab@ksu.edu.sa and Department of Chemistry, Faculty of Science, Tanta University, Tanta 31527, Egypt.
authors.forename: Mohamed
authors.initials: M
authors.lastname: El-Newehy
authors.affiliation: Key Laboratory of High Performance Fibers & Products, Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China. binding@dhu.edu.cn yujy@dhu.edu.cn.
authors.forename: Jianyong
authors.initials: J
authors.lastname: Yu