@article{ART003046639},
author={Guo Ruibin and Fang Mengqi and Chen Qianglong and Wang Nan and Wang Bingjie and Liu Nijuan and Mo Zunli},
title={Self-assembled graphene quantum dots-Co3O4 nanocomposite for highly efficient oxygen evolution reaction electrocatalyst},
journal={Carbon Letters},
issn={1976-4251},
year={2023},
volume={33},
number={6},
pages={1591-1600},
doi={10.1007/s42823-023-00533-z}
TY - JOUR
AU - Guo Ruibin
AU - Fang Mengqi
AU - Chen Qianglong
AU - Wang Nan
AU - Wang Bingjie
AU - Liu Nijuan
AU - Mo Zunli
TI - Self-assembled graphene quantum dots-Co3O4 nanocomposite for highly efficient oxygen evolution reaction electrocatalyst
JO - Carbon Letters
PY - 2023
VL - 33
IS - 6
PB - Korean Carbon Society
SP - 1591
EP - 1600
SN - 1976-4251
AB - A novel kind of self-assembled graphene quantum dots-Co3O4 (GQDs-Co3O4) nanocomposite was successfully manufactured through a hydrothermal approach and used as an extremely effectual oxygen evolution reaction (OER) electrocatalyst. The characterization of morphology with scanning electron microscopy (SEM) and transmission electron microscopy (TEM) showed that Co3O4 nanosheets combined with graphene quantum dots (GQDs) had a new type of hexagonal lamellar self-assembly structure. The GQDs-Co3O4 electrocatalyst showed enhanced electrochemical catalytic properties in an alkaline solution. The start potential of the OER was 0.543 V (vs SCE) in 1 M KOH solution, and 0.577 V (vs SCE) in 0.1 M KOH solution correspondingly. The current density of 10 mA cm−2 had been attained at the overpotential of 321 mV in 1 M KOH solution and 450 mV in 0.1 M KOH solution. Furthermore, the current density can reach 171 mA cm−2 in 1 M KOH solution and 21.4 mA cm−2 in 0.1 M KOH solution at 0.8 V. Moreover, the GQDs-Co3O4 nanocomposite also maintained an ideal constancy in an alkaline solution with only a small deterioration of the activity (7%) compared with the original value after repeating potential cycling for 1000 cycles.
KW - Self-assembly Graphene quantum dots Co3O4 Nanocomposite Electrocatalyst Oxygen evolution reaction
DO - 10.1007/s42823-023-00533-z
ER -
Guo Ruibin, Fang Mengqi, Chen Qianglong, Wang Nan, Wang Bingjie, Liu Nijuan and Mo Zunli. (2023). Self-assembled graphene quantum dots-Co3O4 nanocomposite for highly efficient oxygen evolution reaction electrocatalyst. Carbon Letters, 33(6), 1591-1600.
Guo Ruibin, Fang Mengqi, Chen Qianglong, Wang Nan, Wang Bingjie, Liu Nijuan and Mo Zunli. 2023, "Self-assembled graphene quantum dots-Co3O4 nanocomposite for highly efficient oxygen evolution reaction electrocatalyst", Carbon Letters, vol.33, no.6 pp.1591-1600. Available from: doi:10.1007/s42823-023-00533-z
Guo Ruibin, Fang Mengqi, Chen Qianglong, Wang Nan, Wang Bingjie, Liu Nijuan, Mo Zunli "Self-assembled graphene quantum dots-Co3O4 nanocomposite for highly efficient oxygen evolution reaction electrocatalyst" Carbon Letters 33.6 pp.1591-1600 (2023) : 1591.
Guo Ruibin, Fang Mengqi, Chen Qianglong, Wang Nan, Wang Bingjie, Liu Nijuan, Mo Zunli. Self-assembled graphene quantum dots-Co3O4 nanocomposite for highly efficient oxygen evolution reaction electrocatalyst. 2023; 33(6), 1591-1600. Available from: doi:10.1007/s42823-023-00533-z
Guo Ruibin, Fang Mengqi, Chen Qianglong, Wang Nan, Wang Bingjie, Liu Nijuan and Mo Zunli. "Self-assembled graphene quantum dots-Co3O4 nanocomposite for highly efficient oxygen evolution reaction electrocatalyst" Carbon Letters 33, no.6 (2023) : 1591-1600.doi: 10.1007/s42823-023-00533-z
Guo Ruibin; Fang Mengqi; Chen Qianglong; Wang Nan; Wang Bingjie; Liu Nijuan; Mo Zunli. Self-assembled graphene quantum dots-Co3O4 nanocomposite for highly efficient oxygen evolution reaction electrocatalyst. Carbon Letters, 33(6), 1591-1600. doi: 10.1007/s42823-023-00533-z
Guo Ruibin; Fang Mengqi; Chen Qianglong; Wang Nan; Wang Bingjie; Liu Nijuan; Mo Zunli. Self-assembled graphene quantum dots-Co3O4 nanocomposite for highly efficient oxygen evolution reaction electrocatalyst. Carbon Letters. 2023; 33(6) 1591-1600. doi: 10.1007/s42823-023-00533-z
Guo Ruibin, Fang Mengqi, Chen Qianglong, Wang Nan, Wang Bingjie, Liu Nijuan, Mo Zunli. Self-assembled graphene quantum dots-Co3O4 nanocomposite for highly efficient oxygen evolution reaction electrocatalyst. 2023; 33(6), 1591-1600. Available from: doi:10.1007/s42823-023-00533-z
Guo Ruibin, Fang Mengqi, Chen Qianglong, Wang Nan, Wang Bingjie, Liu Nijuan and Mo Zunli. "Self-assembled graphene quantum dots-Co3O4 nanocomposite for highly efficient oxygen evolution reaction electrocatalyst" Carbon Letters 33, no.6 (2023) : 1591-1600.doi: 10.1007/s42823-023-00533-z
