Residue of Corncob Gasification as Electrode of Supercapacitors: An Experimental and Theoretical Study
Por:
Martinez-Casillas, Diana C., Mascorro-Gutierrez, Ivan, Betancourt-Mendiola, Maria L., Palestino, Gabriela, Quiroga-Gonzalez, Enrique, Pascoe-Sussoni, Jojhar E., Guillen-Lopez, Alfredo, Muniz, Jesus, Cuentas-Gallegos, A. Karina
Publicada:
1 jul 2021
Ahead of Print:
1 sep 2020
Resumen:
In this work, it is proven that a biochar obtained from a commercial
gasifier can be used as electrode material for supercapacitors (SC).
This biochar was produced at 1000 degrees C from corn cob wastes (GAS),
and was compared to an activated biochar obtained in a traditional lab
pyrolysis process (LAB). Both biochars were characterized by different
physicochemical techniques, observing their amorphous nature with
well-developed microporosity dependent of their pretreatment and
production methodology. Furthermore, a computational modeling based on
Molecular Dynamics at the ReaxFF level was also performed to elucidate
the geometry of the resulting microporous structure after simulated
pyrolysis. X-ray structure and pore size distribution are in agreement
with those results obtained via computational simulation. Both carbon
materials were electrochemically evaluated in acidic electrolyte using 3
and 2 electrode systems, obtaining capacitances of 130 F g(-1) (20 mV
s(-1)), and excellent performance compared to commercial activated
carbons, with only about 10% of capacitance loss after 5000 cycles.
However, GAS performance in SC was higher than activated biochar due to
its higher micropore volume. This study provides a novel useful
application to use gasifier residues from agricultural biomass waste for
energy storage devices.
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Filiaciones:
Martinez-Casillas, Diana C.:
Univ Nacl Autonoma Mexico, Inst Energias Renovables, Temixco 62580, Morelos, Mexico
CONACYT, TecNM, ITD, Felipe Pescador 1830 Ote, Durango 34080, Dgo, Mexico
Mascorro-Gutierrez, Ivan:
Univ Nacl Autonoma Mexico, Inst Energias Renovables, Temixco 62580, Morelos, Mexico
Betancourt-Mendiola, Maria L.:
Univ Autonoma San Luis Potosi, Ctr Invest Ciencias Salud & Biomed, Fac Ciencias Quim, San Luis Potosi 78210, San Luis Potosi, Mexico
Palestino, Gabriela:
Univ Autonoma San Luis Potosi, Ctr Invest Ciencias Salud & Biomed, Fac Ciencias Quim, San Luis Potosi 78210, San Luis Potosi, Mexico
Quiroga-Gonzalez, Enrique:
Benemerita Univ Autonoma Puebla, Inst Phys, San Claudio & 18 Sur, Puebla 72570, Mexico
Pascoe-Sussoni, Jojhar E.:
Univ Nacl Autonoma Mexico, Inst Energias Renovables, Temixco 62580, Morelos, Mexico
Guillen-Lopez, Alfredo:
Univ Nacl Autonoma Mexico, Inst Energias Renovables, Temixco 62580, Morelos, Mexico
Muniz, Jesus:
Univ Nacl Autonoma Mexico, Inst Energias Renovables, Temixco 62580, Morelos, Mexico
Cuentas-Gallegos, A. Karina:
Univ Nacl Autonoma Mexico, Inst Energias Renovables, Temixco 62580, Morelos, Mexico
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