Effect of biogas-slurry pyrolysis temperature on specific capacitance

1st Africa Energy Materials Conference, 28-31 March 2017

Talam Kibona Enock, Cecil K. King'ondu, Alexander Pogrebnoi

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The purpose of this is study was to investigate the effect of carbonization temperature of biogas slurry on specific capacitance. The biogas derived mesoporous carbon materials were synthesized through carbonization of biogas slurry at 450, 550, and 650 °C followed by activation using KOH at 700 °C for 1 h. The physical characterization done by nitrogen adsorption and desorption, scanning electron microscope, transmission electron microscope and X-ray diffraction shows that pyrolysis temperature has influence on the textural and structural properties of the biogas slurry derived carbon. BET specific surface area of 567, 521 and 499 m2 g-1 were obtained for samples carbonized at 450, 550, and 650 °C, respectively. The electrochemical performance of the samples in 6 M KOH electrolyte exhibited high gravimetric capacitance of 262, 272, and 238 F g-1 for samples carbonized at 450, 550 and 650 °C, correspondingly at scan rate of 5 mV s-1. Moderate carbonization temperature of 550 °C therefore afforded the highest capacitance.
Original languageEnglish
Pages (from-to)10611-10620
Number of pages10
JournalMaterials Today: Proceedings
Volume5
Issue number4, Part 2
DOIs
Publication statusPublished - 2018

Fingerprint

Biofuels
Biogas
Carbonization
Pyrolysis
Capacitance
Electron microscopes
Carbon
Temperature
Specific surface area
Electrolytes
Structural properties
Desorption
Nitrogen
Chemical activation
Scanning
Adsorption
X ray diffraction

Cite this

@article{2dd7f99ff3ca41e8b65412b15bf02bac,
title = "Effect of biogas-slurry pyrolysis temperature on specific capacitance: 1st Africa Energy Materials Conference, 28-31 March 2017",
abstract = "The purpose of this is study was to investigate the effect of carbonization temperature of biogas slurry on specific capacitance. The biogas derived mesoporous carbon materials were synthesized through carbonization of biogas slurry at 450, 550, and 650 °C followed by activation using KOH at 700 °C for 1 h. The physical characterization done by nitrogen adsorption and desorption, scanning electron microscope, transmission electron microscope and X-ray diffraction shows that pyrolysis temperature has influence on the textural and structural properties of the biogas slurry derived carbon. BET specific surface area of 567, 521 and 499 m2 g-1 were obtained for samples carbonized at 450, 550, and 650 °C, respectively. The electrochemical performance of the samples in 6 M KOH electrolyte exhibited high gravimetric capacitance of 262, 272, and 238 F g-1 for samples carbonized at 450, 550 and 650 °C, correspondingly at scan rate of 5 mV s-1. Moderate carbonization temperature of 550 °C therefore afforded the highest capacitance.",
author = "{Kibona Enock}, Talam and King'ondu, {Cecil K.} and Alexander Pogrebnoi",
year = "2018",
doi = "10.1016/j.matpr.2017.12.394",
language = "English",
volume = "5",
pages = "10611--10620",
journal = "Materials Today: Proceedings",
issn = "2214-7853",
publisher = "Elsevier Limited",
number = "4, Part 2",

}

Effect of biogas-slurry pyrolysis temperature on specific capacitance : 1st Africa Energy Materials Conference, 28-31 March 2017. / Kibona Enock, Talam; King'ondu, Cecil K.; Pogrebnoi, Alexander.

In: Materials Today: Proceedings, Vol. 5, No. 4, Part 2, 2018, p. 10611-10620.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Effect of biogas-slurry pyrolysis temperature on specific capacitance

T2 - 1st Africa Energy Materials Conference, 28-31 March 2017

AU - Kibona Enock, Talam

AU - King'ondu, Cecil K.

AU - Pogrebnoi, Alexander

PY - 2018

Y1 - 2018

N2 - The purpose of this is study was to investigate the effect of carbonization temperature of biogas slurry on specific capacitance. The biogas derived mesoporous carbon materials were synthesized through carbonization of biogas slurry at 450, 550, and 650 °C followed by activation using KOH at 700 °C for 1 h. The physical characterization done by nitrogen adsorption and desorption, scanning electron microscope, transmission electron microscope and X-ray diffraction shows that pyrolysis temperature has influence on the textural and structural properties of the biogas slurry derived carbon. BET specific surface area of 567, 521 and 499 m2 g-1 were obtained for samples carbonized at 450, 550, and 650 °C, respectively. The electrochemical performance of the samples in 6 M KOH electrolyte exhibited high gravimetric capacitance of 262, 272, and 238 F g-1 for samples carbonized at 450, 550 and 650 °C, correspondingly at scan rate of 5 mV s-1. Moderate carbonization temperature of 550 °C therefore afforded the highest capacitance.

AB - The purpose of this is study was to investigate the effect of carbonization temperature of biogas slurry on specific capacitance. The biogas derived mesoporous carbon materials were synthesized through carbonization of biogas slurry at 450, 550, and 650 °C followed by activation using KOH at 700 °C for 1 h. The physical characterization done by nitrogen adsorption and desorption, scanning electron microscope, transmission electron microscope and X-ray diffraction shows that pyrolysis temperature has influence on the textural and structural properties of the biogas slurry derived carbon. BET specific surface area of 567, 521 and 499 m2 g-1 were obtained for samples carbonized at 450, 550, and 650 °C, respectively. The electrochemical performance of the samples in 6 M KOH electrolyte exhibited high gravimetric capacitance of 262, 272, and 238 F g-1 for samples carbonized at 450, 550 and 650 °C, correspondingly at scan rate of 5 mV s-1. Moderate carbonization temperature of 550 °C therefore afforded the highest capacitance.

U2 - 10.1016/j.matpr.2017.12.394

DO - 10.1016/j.matpr.2017.12.394

M3 - Article

VL - 5

SP - 10611

EP - 10620

JO - Materials Today: Proceedings

JF - Materials Today: Proceedings

SN - 2214-7853

IS - 4, Part 2

ER -