Supporting Information Asymmetric Supercapacitor Based on Porous N-doped Carbon Derived from Pomelo Peel and NiO Arrays

Transcription

1 Supporting Information Asymmetric Supercapacitor Based on Porous N-doped Carbon Derived from Pomelo Peel and NiO Arrays Gan Qu, ᵻ Shuangfeng Jia, ᵻ Hai Wang, Fan Cao, ᵻ Lei Li, ᵻ Chen Qing, Daming Sun, Bixiao Wang, Yiwen Tang,* and Jianbo Wang* ᵻ ᵻ School of Physics and Technology, Center for Electron Microscopy and MOE Key Laboratory of Artificial Micro- and Nano-structures, Wuhan University, Wuhan, Hubei Province , China Institute of Nano-Science & Technology, Department of Physics and Technology, Central China Normal University, Wuhan, Hubei Province , China Corresponding Authors: * (J. Wang) wang@whu.edu.cn. * (Y. Tang) ywtang@phy.ccnu.edu.cn. S-1

2 Figure S1. TEM (a) and HR-TEM (b) images of PFNC Table S1 Comparison of electrochemical performance of carbon based supercapacitor Materials Specific capacitance P(W/kg) E(Wh/kg) Reference PFNC 260 F g-1 at 1 A g This work N-carbon fiber 202 F g-1 at 1 A g Activated carbon 286 F g-1 at 0.25 A g D porous carbon 204 F g-1 at 0.5 A g N-carbon 245 F g-1 at 0.5 A g Hierarchical carbon 294 F g-1 at 2 mv s Porous nanosheet 268 F g-1 at 1 A g Bamboo-carbon 301 F g-1 at 0.1 A g Porous carbon 208 F g-1 at 0.5 A g Mesoporous carbon 188 F g-1 at 0.5 A g Carbon nanoflake 170 F g-1 at 0.1 A g S-2

3 Soybean-carbon 261 F g -1 at 0.2 A g Biomass carbon 146 F g -1 at 1 mv s (a) (b) lg(f/hz) lg(f/hz) lg(z/ohm) -Phase/degree lg(z/ohm) -Phase/degree Figure S2. Bode plots of PFC and PFNC based supercapacitor S-3

4 Figure S3. TEM images and SAED patterns of PFN (a, c) and IFN (b, d) (a) (b) PFN PFN IFN Potential/V Intensity/a.u NiO Ni IFN θ/degree Time/s Figure S4. XRD patterns of PFN and IFN (a); GCD curves of PFN and IFN at a current density of 1 A g-1 (b) S-4

5 Figure S5. Photographs of PFN//PFNC device powering two commercial red LEDs at different stages References (1) Chen, L. F.; Zhang, X. D.; Liang, H. W.; Kong, M. G.; Guan, Q. F.; Chen, P.; Wu, Z. Y.; Yu, S. H. Synthesis of Nitrogen-Doped Porous Carbon Nanofibers as an Efficient Electrode Material for Supercapacitors. ACS nano 2012, 6, (2) Zhao, Z. H.; Hao, S. M.; Hao, P.; Sang, Y. H.; Manivannan, A.; Wu, N. Q.; Liu, H. Lignosulphonate-Cellulose Derived Porous Activated Carbon for Supercapacitor Electrode. J. Mater. Chem. A 2015, 3, (3) Miao, F. J.; Shao, C. L.; Li, X. H.; Wang, K. X.; Lu, N.; Liu, Y. C. Three-Dimensional Freestanding Hierarchically Porous Carbon Materials as Binder-Free Electrodes for Supercapacitors: High Capacitive Property and Long-Term Cycling Stability. J. Mater. Chem. A 2016, 4, (4) Peng, H.; Ma, G. F.; Sun, K. J.; Zhang, Z. G.; Yang, Q.; Lei, Z. Q. Nitrogen-Doped Interconnected Carbon Nanosheets from Pomelo Mesocarps for High Performance Supercapacitors. Electrochim. Acta 2016, 190, S-5

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