Supporting Information For Tubular graphitic-c 3 N 4 : A Prospective material for energy storage and green photocatalyst
Figure S1. SEM imageof tubular g-c 3 N 4.
Figure S2. HRTEM image of tubular g-c 3 N 4.
Figure S3. Nitrogen- adsorption curves of g-c 3 N 4 and tubular g-c 3 N 4 for BET surface area.
Figure S4. 1 st, 500 th and 1000 th charging - discharging curves of g-c 3 N 4 within a potential window of -0.2 0.8 V for current density 0.5 A/g.
Figure S5. C-V curve of tubular g-c 3 N 4 within a potential window of -0.2 1.0V using a three-electrode cell at a scan rate of 5mV/s.
Figure S6. C-V curve of tubular g-c 3 N 4 within a potential window of -0.2 1.0V using a threeelectrode cell at a scan rate of 20mV/s.
Table S1. Specific capacitance comparison of the best-performing nitrogen-doped carbon materials in the literature. Materials Electrolyte[L -1 ] Capacitance [Fg -1 ] Current Density (Ag -1 ) Reference N-Enriched Nanocarbons 1M H 2 SO 4 210 0.1 1 N-enriched carbon 1 M H 2 SO 4 201 0.5 2 MWCNTs 4 M H 2 SO 4 62 0.2 3 CNTs 6 M KOH 198 0.05 4 N-enriched carbon 1 M H 2 SO 4 201 0.5 5 N-enriched carbon 1 M TEABF 4 52 1mA /cm 2 6 O-rich carbons 1 MH 2 SO 4 198 1 7 N-carbon 5 M H 2 SO 4 211 1 8 CNTs/ N-carbon 1 M H 2 SO 4 100 0.2 9 N-Doped Graphene 6 M KOH 246 1 10 N-doped 6 M KOH 248 1 11 carbonnanocage N-Doped Carbon 6 M KOH 202 1 12 Porous 3D 1M TEABF 4 231 1 13 graphene Acrylonitrile propylene 1M H 2 SO 4 340 0.2 14 Melamine 6 M KOH 280 14 Ethylene diamine carbon tetrachloride 6 M KOH 318 14 14 Urea brown coal 6 M KOH 341 14 Tubular g-c 3 N 4 6 M KOH 233 0.2 Our work
T a b l e S 2. F i r s t o r d e r r a t e c o n s t a n t c o m p a r i s o n b e t w e e n d i f f e r e n t r e p o r t e d r e s u l t s. Dye Photocatalysts k(min -1 ) Reference Our Work MO Born doped g-c 3 N 4 0.004 15 0.0067 g-c 3 N 4 at 600 0 C 0.003 15 g-c 3 N 4 at 580 0 C 0.004 15 g-c 3 N 4 0.005 16 MB TiO 2 nanotubes 0.024 17 0.021 TiO 2 0.0012 18 g-c 3 N 4 nanoplates 0.0016 19 g-c 3 N 4 nanorods 0.002 19
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