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Supercapacitor/biofuel cell hybrid device employing biomolecules for energy conversion and charge storage

Shen, Fei; Pankratov, Dmitry; Pankratova, Galina LU ; Toscano, Miguel D.; Zhang, Jingdong; Ulstrup, Jens; Chi, Qijin and Gorton, Lo LU (2019) In Bioelectrochemistry 128. p.94-99
Abstract


We report on a hybrid bioelectrochemical system that integrates an energy converting part, viz. a glucose/oxygen enzymatic fuel cell, with a charge-storing component, in which the redox features of the immobilized redox protein cytochrome c (cyt c) were utilized. Bilirubin oxidase and pyrroloquinoline quinone-dependent glucose dehydrogenase (PQQ-GDH) were employed as the biocatalysts for dioxygen reduction and glucose oxidation, respectively. A bi-protein PQQ-GDH/cyt c signal chain was created that facilitates electron transfer between the enzyme and the electrode surface. The assembled supercapacitor/biofuel cell hybrid biodevice displays a 15 times higher power density... (More)


We report on a hybrid bioelectrochemical system that integrates an energy converting part, viz. a glucose/oxygen enzymatic fuel cell, with a charge-storing component, in which the redox features of the immobilized redox protein cytochrome c (cyt c) were utilized. Bilirubin oxidase and pyrroloquinoline quinone-dependent glucose dehydrogenase (PQQ-GDH) were employed as the biocatalysts for dioxygen reduction and glucose oxidation, respectively. A bi-protein PQQ-GDH/cyt c signal chain was created that facilitates electron transfer between the enzyme and the electrode surface. The assembled supercapacitor/biofuel cell hybrid biodevice displays a 15 times higher power density tested in the pulse mode compared to the performance achieved from the continuously operating regime (4.5 and 0.3 μW cm
−2
, respectively) with an 80% residual activity after 50 charge/discharge pulses. This can be considered as a notable step forward in the field of glucose/oxygen membrane-free, biocompatible hybrid power sources.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Bilirubin oxidase, Cytochrome c, Enzymatic fuel cell, Glucose dehydrogenase, Hybrid bioelectrochemical system
in
Bioelectrochemistry
volume
128
pages
6 pages
publisher
Elsevier
external identifiers
  • scopus:85063800955
ISSN
1567-5394
DOI
10.1016/j.bioelechem.2019.03.009
language
English
LU publication?
yes
id
f7815efe-c92e-455c-a826-94b806b5aeb9
date added to LUP
2019-04-18 11:51:43
date last changed
2019-08-14 04:35:08
@article{f7815efe-c92e-455c-a826-94b806b5aeb9,
  abstract     = {<p><br>
                                                         We report on a hybrid bioelectrochemical system that integrates an energy converting part, viz. a glucose/oxygen enzymatic fuel cell, with a charge-storing component, in which the redox features of the immobilized redox protein cytochrome c (cyt c) were utilized. Bilirubin oxidase and pyrroloquinoline quinone-dependent glucose dehydrogenase (PQQ-GDH) were employed as the biocatalysts for dioxygen reduction and glucose oxidation, respectively. A bi-protein PQQ-GDH/cyt c signal chain was created that facilitates electron transfer between the enzyme and the electrode surface. The assembled supercapacitor/biofuel cell hybrid biodevice displays a 15 times higher power density tested in the pulse mode compared to the performance achieved from the continuously operating regime (4.5 and 0.3 μW cm                             <br>
                            <sup>−2</sup><br>
                                                         , respectively) with an 80% residual activity after 50 charge/discharge pulses. This can be considered as a notable step forward in the field of glucose/oxygen membrane-free, biocompatible hybrid power sources.                         <br>
                        </p>},
  author       = {Shen, Fei and Pankratov, Dmitry and Pankratova, Galina and Toscano, Miguel D. and Zhang, Jingdong and Ulstrup, Jens and Chi, Qijin and Gorton, Lo},
  issn         = {1567-5394},
  keyword      = {Bilirubin oxidase,Cytochrome c,Enzymatic fuel cell,Glucose dehydrogenase,Hybrid bioelectrochemical system},
  language     = {eng},
  pages        = {94--99},
  publisher    = {Elsevier},
  series       = {Bioelectrochemistry},
  title        = {Supercapacitor/biofuel cell hybrid device employing biomolecules for energy conversion and charge storage},
  url          = {http://dx.doi.org/10.1016/j.bioelechem.2019.03.009},
  volume       = {128},
  year         = {2019},
}