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Structural and electrochemical investigation of waste newspaper based electrodes for supercapacitor applications

Materials Science-Poland
Volume 34 (2016): Issue 2 (June 2016)
By:
Open Access
|Jun 2016

Figures & Tables

Fig. 1

X-ray diffraction patterns of (a) PCC, (b) AWNP 600, (c) AWNP 700, (d) AWNP 800 carbons
X-ray diffraction patterns of (a) PCC, (b) AWNP 600, (c) AWNP 700, (d) AWNP 800 carbons

Fig. 2

FT-IR spectra of (a) AWNP 600 (b) AWNP 700 and (c) AWNP 800 carbons.
FT-IR spectra of (a) AWNP 600 (b) AWNP 700 and (c) AWNP 800 carbons.

Fig. 3

Scanning electron micrographs of (a) PCC, (b) AWNP 600, (C) AWNP 700, (d) AWNP 800.
Scanning electron micrographs of (a) PCC, (b) AWNP 600, (C) AWNP 700, (d) AWNP 800.

Fig. 4

Adsorption-desorption isotherms of activated carbons PCC, AWNP 600, AWNP 700, AWNP 800 carbons.
Adsorption-desorption isotherms of activated carbons PCC, AWNP 600, AWNP 700, AWNP 800 carbons.

Fig. 5

Effect of compression pressure treatment on the electrical conductivity of the activated carbon samples.
Effect of compression pressure treatment on the electrical conductivity of the activated carbon samples.

Fig. 6

Cyclic voltammograms of (a) AWNP 600, (b) AWNP 700, (c) AWNP 800 using 1 M H2SO4 as electrolyte at different scan rates.
Cyclic voltammograms of (a) AWNP 600, (b) AWNP 700, (c) AWNP 800 using 1 M H2SO4 as electrolyte at different scan rates.

Fig. 7

Cyclic voltammogram of AWNP 800 at various scan rates ranging from 10 mV/s to 100 mV/s.
Cyclic voltammogram of AWNP 800 at various scan rates ranging from 10 mV/s to 100 mV/s.

Fig. 8

Nyquist plot of the as-prepared AWNP 800.
Nyquist plot of the as-prepared AWNP 800.

Fig. 9

Charge-discharge curves of AWNP 800 at fixed 2 Ag−1.
Charge-discharge curves of AWNP 800 at fixed 2 Ag−1.

Fig. 10

Cycling stability of AWNP 800 electrode.
Cycling stability of AWNP 800 electrode.

Fig. 11

Size and dimensions of the supercapacitor electrode.
Size and dimensions of the supercapacitor electrode.

Fig. 12

Schematic representation of AWNP 800 supercapacitor electrode cell.
Schematic representation of AWNP 800 supercapacitor electrode cell.

Sample code, surface area, pore volume, average pore diameter, and production yield of waste newspaper derived carbon_

Sample

SBeta${\rm{S}}_{{\rm{Bet}}}^{\rm{a}}$

[m2/g]

Smicb${\rm{S}}_{{\rm{mic}}}^{\rm{b}}$

[m2/g]

Smesoc${\rm{S}}_{{\rm{meso}}}^{\rm{c}}$

[m2/g]

VTotald${\rm{V}}_{{\rm{Total}}}^{\rm{d}}$

[cm3/g]

VMicroe${\rm{V}}_{{\rm{Micro}}}^{\rm{e}}$

[cm3/g]

VMesof${\rm{V}}_{{\rm{Meso}}}^{\rm{f}}$

[cm3/g]

VMicro/VTotal

[%]

VMeso/VTotal

[%]

Dpg${\rm{D}}_{\rm{p}}^{\rm{g}}$

[nm]

Production yield of carbon [%]

PCC

333.06

231.01

105.03

0.59

0.54

0.05

91.5

0.85

7.9

63.00

AWNP 600

621.25

371.39

250.07

0.96

0.77

0.19

80.2

19.7

7.8

55.66

AWNP 700

832.37

493.56

339.60

1.11

0.84

0.27

75.6

24.3

6.9

49.79

AWNP 800

1104.8

563.71

503.39

1.30

0.82

0.48

63.0

36.9

4.8

45.89

Characteristics of lab made supercapacitor_

Characteristics

Lab made supercapacitor

operating temperature range

-35 °C to +70 °C

Capacitance

100 F to 380 F

Rated voltage

1200 v to 3000 v(DC current) Protection against overvoltage

Tolerance

±10% to ±15 %

Dissipation factor

+0.5 × 10−3 (measured at 100 Hz and 25 °C)

Life expectancy

10,000 hours at 85 °C (life span of at least 20 years)

Environment friendly

Green product

DOI: https://doi.org/10.1515/msp-2016-0064 | Journal eISSN: 2083-134X | Journal ISSN: 2083-1331
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Language: English
Page range: 302 - 314
Submitted on: Jun 11, 2015
Accepted on: May 13, 2016
Published on: Jun 27, 2016
Published by: Wroclaw University of Science and Technology
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year
Keywords:
waste newspaper,
electrode,
hierarchical porous carbon,
supercapacitor
Related subjects:
Materials sciences,
Materials sciences, other,
Nanomaterials,
Functional and smart materials,
Materials characterization and properties

© 2016 T. Adinaveen, J. Judith Vijaya, R. Sivakumar, L. John Kennedy, published by Wroclaw University of Science and Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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