TY - JOUR
T1 - Enhancement of bioelectrochemical dioxygen reduction with oxygen-enriching materials
AU - Xiao, Xinxin
AU - Yan, Xiaomei
AU - Ulstrup, Jens
N1 - Publisher Copyright:
© 2022 The Author(s)
PY - 2022/8
Y1 - 2022/8
N2 - Bioelectrochemical dioxygen reduction reaction (ORR) catalyzed by multi-copper oxidases (MCOs) is a process of paramount importance occurring at the cathode of enzymatic biofuel cells (EBFCs), which is an energy harvester that holds promise of self-sustained implantable and wearable medical devices. The MCO biocathode is, however, frequently the limiting factor of a working EBFC. Besides the operational stability issue, enzymatic biocathodes are largely constrained by the relatively low solubility of dioxygen in aqueous solution. As an emerging topic, we here review the introduction of dioxygen-enriching materials to the cathodic bioelectrode for overcoming the dioxygen supply limitation, leading to improved ORR performance.
AB - Bioelectrochemical dioxygen reduction reaction (ORR) catalyzed by multi-copper oxidases (MCOs) is a process of paramount importance occurring at the cathode of enzymatic biofuel cells (EBFCs), which is an energy harvester that holds promise of self-sustained implantable and wearable medical devices. The MCO biocathode is, however, frequently the limiting factor of a working EBFC. Besides the operational stability issue, enzymatic biocathodes are largely constrained by the relatively low solubility of dioxygen in aqueous solution. As an emerging topic, we here review the introduction of dioxygen-enriching materials to the cathodic bioelectrode for overcoming the dioxygen supply limitation, leading to improved ORR performance.
KW - Bioelectrochemical dioxygen reduction
KW - Bioelectrode
KW - Biofuel cell
KW - Dioxygen-enriching materials
KW - Enzyme immobilization
UR - http://www.scopus.com/inward/record.url?scp=85127148054&partnerID=8YFLogxK
U2 - 10.1016/j.coelec.2022.100966
DO - 10.1016/j.coelec.2022.100966
M3 - Review article
AN - SCOPUS:85127148054
SN - 2451-9103
VL - 34
JO - Current Opinion in Electrochemistry
JF - Current Opinion in Electrochemistry
M1 - 100966
ER -