Activated Carbon Bio-xerogels as Electrodes for Super Capacitors Applications

Zulamita Zapata-Benabithe; Giovanna Diossa; Chris D. Castro; Germán Quintana

doi:10.1016/j.proeng.2016.06.470

Activated Carbon Bio-xerogels as Electrodes for Super Capacitors Applications

Zulamita Zapata-Benabithe, Giovanna Diossa, Chris D. Castro, Germán Quintana

Research output: Contribution to journal › Conference and proceedings › peer-review

32 Scopus citations

Abstract

The objectives of this work are to evaluate the use of the lignin as precursor of carbon xerogels and to determinate the effect of porosity and surface functionalities on the electrochemical capacitance of the activated carbon bio-xerogels. Lignin replaced the resorcinol at a mass fraction between 0 and 0.086 (wt%). The organic carbon xerogels are H₃PO₄-activated at H₃PO₄/carbon ratio of 1/1 at 450°C to increase pore volume and surface area. Gravimetric capacitance values at 0.125 A/g, in a three-cell configuration, ranged from 138 to 234 F/g. Sample with a 0.086 content of lignin showed the best electrochemical behavior, which was associated with the high BET surface area (1243 m²/g), high volume (W₀(N₂)= 0.518 cm³/g) and width micropores (L₀(N₂)= 1.43 nm) and to the presence of pseudo faradic effects.

Original language	English
Pages (from-to)	18-24
Number of pages	7
Journal	Procedia Engineering
Volume	148
DOIs	https://doi.org/10.1016/j.proeng.2016.06.470
State	Published - 2016
Event	4th International Conference on Process Engineering and Advanced Materials, ICPEAM 2016 - Kuala Lumpur, Malaysia Duration: 15 Aug 2016 → 17 Aug 2016

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Publisher Copyright:
© 2016 The Authors. Published by Elsevier Ltd.

Keywords

Activated carbon xerogels
Lignin
Supercapacitors

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10.1016/j.proeng.2016.06.470

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title = "Activated Carbon Bio-xerogels as Electrodes for Super Capacitors Applications",

abstract = "The objectives of this work are to evaluate the use of the lignin as precursor of carbon xerogels and to determinate the effect of porosity and surface functionalities on the electrochemical capacitance of the activated carbon bio-xerogels. Lignin replaced the resorcinol at a mass fraction between 0 and 0.086 (wt%). The organic carbon xerogels are H3PO4-activated at H3PO4/carbon ratio of 1/1 at 450°C to increase pore volume and surface area. Gravimetric capacitance values at 0.125 A/g, in a three-cell configuration, ranged from 138 to 234 F/g. Sample with a 0.086 content of lignin showed the best electrochemical behavior, which was associated with the high BET surface area (1243 m2/g), high volume (W0(N2)= 0.518 cm3/g) and width micropores (L0(N2)= 1.43 nm) and to the presence of pseudo faradic effects.",

keywords = "Activated carbon xerogels, Lignin, Supercapacitors",

author = "Zulamita Zapata-Benabithe and Giovanna Diossa and Castro, {Chris D.} and Germ{\'a}n Quintana",

note = "Publisher Copyright: {\textcopyright} 2016 The Authors. Published by Elsevier Ltd.; 4th International Conference on Process Engineering and Advanced Materials, ICPEAM 2016 ; Conference date: 15-08-2016 Through 17-08-2016",

year = "2016",

doi = "10.1016/j.proeng.2016.06.470",

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T1 - Activated Carbon Bio-xerogels as Electrodes for Super Capacitors Applications

AU - Zapata-Benabithe, Zulamita

AU - Diossa, Giovanna

AU - Castro, Chris D.

AU - Quintana, Germán

PY - 2016

Y1 - 2016

N2 - The objectives of this work are to evaluate the use of the lignin as precursor of carbon xerogels and to determinate the effect of porosity and surface functionalities on the electrochemical capacitance of the activated carbon bio-xerogels. Lignin replaced the resorcinol at a mass fraction between 0 and 0.086 (wt%). The organic carbon xerogels are H3PO4-activated at H3PO4/carbon ratio of 1/1 at 450°C to increase pore volume and surface area. Gravimetric capacitance values at 0.125 A/g, in a three-cell configuration, ranged from 138 to 234 F/g. Sample with a 0.086 content of lignin showed the best electrochemical behavior, which was associated with the high BET surface area (1243 m2/g), high volume (W0(N2)= 0.518 cm3/g) and width micropores (L0(N2)= 1.43 nm) and to the presence of pseudo faradic effects.

AB - The objectives of this work are to evaluate the use of the lignin as precursor of carbon xerogels and to determinate the effect of porosity and surface functionalities on the electrochemical capacitance of the activated carbon bio-xerogels. Lignin replaced the resorcinol at a mass fraction between 0 and 0.086 (wt%). The organic carbon xerogels are H3PO4-activated at H3PO4/carbon ratio of 1/1 at 450°C to increase pore volume and surface area. Gravimetric capacitance values at 0.125 A/g, in a three-cell configuration, ranged from 138 to 234 F/g. Sample with a 0.086 content of lignin showed the best electrochemical behavior, which was associated with the high BET surface area (1243 m2/g), high volume (W0(N2)= 0.518 cm3/g) and width micropores (L0(N2)= 1.43 nm) and to the presence of pseudo faradic effects.

KW - Activated carbon xerogels

KW - Lignin

KW - Supercapacitors

UR - http://www.scopus.com/inward/record.url?scp=85013965616&partnerID=8YFLogxK

U2 - 10.1016/j.proeng.2016.06.470

DO - 10.1016/j.proeng.2016.06.470

M3 - Ponencia publicada en las memorias del evento con ISSN

AN - SCOPUS:85013965616

SN - 1877-7058

VL - 148

SP - 18

EP - 24

JO - Procedia Engineering

JF - Procedia Engineering

T2 - 4th International Conference on Process Engineering and Advanced Materials, ICPEAM 2016

Y2 - 15 August 2016 through 17 August 2016

ER -

Activated Carbon Bio-xerogels as Electrodes for Super Capacitors Applications

Abstract

Bibliographical note

Keywords

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