TY - JOUR
T1 - Performance improvement of the glucose oxidation reactions using methyl red mediator
AU - Kang, Suhyeon
AU - Chung, Yongjin
AU - Hyun, Kyuhwan
AU - Yoo, Kye Sang
AU - Kwon, Yongchai
N1 - Publisher Copyright:
© 2019 Hydrogen Energy Publications LLC
PY - 2020/2/7
Y1 - 2020/2/7
N2 - A new catalyst promoting an overall anodic oxidation reaction is suggested. In this catalytic structure, glucose oxidase (GOx) is immobilized onto polyethyleneimine (PEI) and carbon nanotube (CNT) (CNT/PEI/GOx) before polymerized methyl red (PMR) mediator coupled with PEI is further entrapped onto the CNT/PEI/GOx to complete CNT/PEI/GOx/[PEI-PMR]. With this, entrapped mediator-based electron transfer is well established. According to the related characterizations, when the glucose is used as reactant, overall oxidation reactions including glucose oxidation reaction are significantly improved by synergetic effect between GOx as a catalyst and PMR as an entrapped mediator. The optimal amount of embedded PMR determines the overall oxidation reaction rate because the amount of PMR that is obtained from the methyl red (MR) concentration of 3 mg mL−1 can maximize the electron shuttling effect between GOx and electrode, followed by the overall oxidation reaction rate. Based on this, it is shown that CNT/PEI/GOx/[PEI-PMR3] is the best catalytic structure for promoting the overall oxidation reaction.
AB - A new catalyst promoting an overall anodic oxidation reaction is suggested. In this catalytic structure, glucose oxidase (GOx) is immobilized onto polyethyleneimine (PEI) and carbon nanotube (CNT) (CNT/PEI/GOx) before polymerized methyl red (PMR) mediator coupled with PEI is further entrapped onto the CNT/PEI/GOx to complete CNT/PEI/GOx/[PEI-PMR]. With this, entrapped mediator-based electron transfer is well established. According to the related characterizations, when the glucose is used as reactant, overall oxidation reactions including glucose oxidation reaction are significantly improved by synergetic effect between GOx as a catalyst and PMR as an entrapped mediator. The optimal amount of embedded PMR determines the overall oxidation reaction rate because the amount of PMR that is obtained from the methyl red (MR) concentration of 3 mg mL−1 can maximize the electron shuttling effect between GOx and electrode, followed by the overall oxidation reaction rate. Based on this, it is shown that CNT/PEI/GOx/[PEI-PMR3] is the best catalytic structure for promoting the overall oxidation reaction.
KW - Electron shuttling effect
KW - Electropolymerization
KW - Entrapped mediator-based electron transfer
KW - Glucose oxidation reaction
KW - Methyl red mediator
UR - http://www.scopus.com/inward/record.url?scp=85077147139&partnerID=8YFLogxK
U2 - 10.1016/j.ijhydene.2019.11.223
DO - 10.1016/j.ijhydene.2019.11.223
M3 - Article
AN - SCOPUS:85077147139
SN - 0360-3199
VL - 45
SP - 4821
EP - 4828
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
IS - 7
ER -
