TY - JOUR
T1 - Cellulose graphitic carbon directed iron oxide interfaced polypyrrole electrode materials for high performance supercapacitors
AU - Palem, Ramasubba Reddy
AU - Devendrachari, Mruthyunjayachari Chattanahalli
AU - Shimoga, Ganesh
AU - Bathula, Chinna
AU - Lee, Soo Hong
AU - Siva Kumar, Nadavala
AU - Al-Fatesh, Ahmed S.
AU - Kim, Dae Young
AU - Hwang, Kyojung
AU - Choi, Dong Soo
AU - Kim, Sang Youn
N1 - Publisher Copyright:
© 2023
PY - 2023/12/31
Y1 - 2023/12/31
N2 - The rising demand for green and clean energy urges the enlargement of economical and proficient electrode materials for supercapacitors. Herein, we designed a novel electrode material by porous cellulose graphitic carbon (CC) derived from bio-waste cornhusk via the pyrolysis route, and α-Fe2O3 decorated nanostructure with CC (CCIO) was achieved in situ pyrolysis of corn-husk and Fe(NO3)3·9H2O metal salt followed by a coating of polypyrrole (CCIOP). The CC, CCIO, and CCIOP nanocomposite electrodes were characterized by XRD, Raman, FTIR, FE-SEM/EDX, FE-TEM, XPS, and BET analysis. The CCIOP nanocomposite electrode exhibits an enhanced specific capacitance (Csp) of 290.9 F/g, which is substantial to its pristine CC (128.3 F/g), PPy (140.3 F/g), and CCIO (190.7 F/g). The Csp of CCIOP in a three-electrode system, using 1 M Na2SO4 electrolyte exhibits excellent capacity retention of 79.1 % even at a high current density of 10 A/g. The as-fabricated asymmetric supercapacitor (ASC) delivered a remarkable capacity retention of 88.7 % with a coulombic efficiency of 98.8 % even after 3000 cycles. The study shows successful utilization of cellulose from bio-waste cornhusk into a substantial template applicable in future alternative energy storage devices.
AB - The rising demand for green and clean energy urges the enlargement of economical and proficient electrode materials for supercapacitors. Herein, we designed a novel electrode material by porous cellulose graphitic carbon (CC) derived from bio-waste cornhusk via the pyrolysis route, and α-Fe2O3 decorated nanostructure with CC (CCIO) was achieved in situ pyrolysis of corn-husk and Fe(NO3)3·9H2O metal salt followed by a coating of polypyrrole (CCIOP). The CC, CCIO, and CCIOP nanocomposite electrodes were characterized by XRD, Raman, FTIR, FE-SEM/EDX, FE-TEM, XPS, and BET analysis. The CCIOP nanocomposite electrode exhibits an enhanced specific capacitance (Csp) of 290.9 F/g, which is substantial to its pristine CC (128.3 F/g), PPy (140.3 F/g), and CCIO (190.7 F/g). The Csp of CCIOP in a three-electrode system, using 1 M Na2SO4 electrolyte exhibits excellent capacity retention of 79.1 % even at a high current density of 10 A/g. The as-fabricated asymmetric supercapacitor (ASC) delivered a remarkable capacity retention of 88.7 % with a coulombic efficiency of 98.8 % even after 3000 cycles. The study shows successful utilization of cellulose from bio-waste cornhusk into a substantial template applicable in future alternative energy storage devices.
KW - Cellulose graphitic carbon
KW - Cyclic stability
KW - Electrochemical properties
KW - PPy
KW - α-FeO
UR - http://www.scopus.com/inward/record.url?scp=85173274865&partnerID=8YFLogxK
U2 - 10.1016/j.ijbiomac.2023.127154
DO - 10.1016/j.ijbiomac.2023.127154
M3 - Article
C2 - 37793524
AN - SCOPUS:85173274865
SN - 0141-8130
VL - 253
JO - International Journal of Biological Macromolecules
JF - International Journal of Biological Macromolecules
M1 - 127154
ER -