Two-dimensional graphene paper supported flexible enzymatic fuel cells

Research output: Contribution to journalArticle

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Two-dimensional graphene paper supported flexible enzymatic fuel cells. / Shen, Fei; Pankratov, Dmitry; Halder, Arnab; Xiao, Xinxin; Toscano, Miguel D.; Zhang, Jingdong; Ulstrup, Jens; Gorton, Lo; Chi, Qijin.

In: Nanoscale Advances, Vol. 1, No. 7, 2019, p. 2562-2570.

Research output: Contribution to journalArticle

Harvard

Shen, F, Pankratov, D, Halder, A, Xiao, X, Toscano, MD, Zhang, J, Ulstrup, J, Gorton, L & Chi, Q 2019, 'Two-dimensional graphene paper supported flexible enzymatic fuel cells', Nanoscale Advances, vol. 1, no. 7, pp. 2562-2570. https://doi.org/10.1039/c9na00178f

APA

Shen, F., Pankratov, D., Halder, A., Xiao, X., Toscano, M. D., Zhang, J., ... Chi, Q. (2019). Two-dimensional graphene paper supported flexible enzymatic fuel cells. Nanoscale Advances, 1(7), 2562-2570. https://doi.org/10.1039/c9na00178f

CBE

Shen F, Pankratov D, Halder A, Xiao X, Toscano MD, Zhang J, Ulstrup J, Gorton L, Chi Q. 2019. Two-dimensional graphene paper supported flexible enzymatic fuel cells. Nanoscale Advances. 1(7):2562-2570. https://doi.org/10.1039/c9na00178f

MLA

Vancouver

Shen F, Pankratov D, Halder A, Xiao X, Toscano MD, Zhang J et al. Two-dimensional graphene paper supported flexible enzymatic fuel cells. Nanoscale Advances. 2019;1(7):2562-2570. https://doi.org/10.1039/c9na00178f

Author

Shen, Fei ; Pankratov, Dmitry ; Halder, Arnab ; Xiao, Xinxin ; Toscano, Miguel D. ; Zhang, Jingdong ; Ulstrup, Jens ; Gorton, Lo ; Chi, Qijin. / Two-dimensional graphene paper supported flexible enzymatic fuel cells. In: Nanoscale Advances. 2019 ; Vol. 1, No. 7. pp. 2562-2570.

RIS

TY - JOUR

T1 - Two-dimensional graphene paper supported flexible enzymatic fuel cells

AU - Shen, Fei

AU - Pankratov, Dmitry

AU - Halder, Arnab

AU - Xiao, Xinxin

AU - Toscano, Miguel D.

AU - Zhang, Jingdong

AU - Ulstrup, Jens

AU - Gorton, Lo

AU - Chi, Qijin

PY - 2019

Y1 - 2019

N2 - Application of enzymatic biofuel cells (EBFCs) in wearable or implantable biomedical devices requires flexible and biocompatible electrode materials. To this end, freestanding and low-cost graphene paper is emerging among the most promising support materials. In this work, we have exploited the potential of using graphene paper with a two-dimensional active surface (2D-GP) as a carrier for enzyme immobilization to fabricate EBFCs, representing the first case of flexible graphene papers directly used in EBFCs. The 2D-GP electrodes were prepared via the assembly of graphene oxide (GO) nanosheets into a paper-like architecture, followed by reduction to form layered and cross-linked networks with good mechanical strength, high conductivity and little dependence on the degree of mechanical bending. 2D-GP electrodes served as both a current collector and an enzyme loading substrate that can be used directly as a bioanode and biocathode. Pyrroloquinoline quinone dependent glucose dehydrogenase (PQQ-GDH) and bilirubin oxidase (BOx) adsorbed on the 2D-GP electrodes both retain their biocatalytic activities. Electron transfer (ET) at the bioanode required Meldola blue (MB) as an ET mediator to shuttle electrons between PQQ-GDH and the electrode, but direct electron transfer (DET) at the biocathode was achieved. The resulting glucose/oxygen EBFC displayed a notable mechanical flexibility, with a wide open circuit voltage range up to 0.665 V and a maximum power density of approximately 4 μW cm-2 both fully competitive with reported values for related EBFCs, and with mechanical flexibility and facile enzyme immobilization as novel merits.

AB - Application of enzymatic biofuel cells (EBFCs) in wearable or implantable biomedical devices requires flexible and biocompatible electrode materials. To this end, freestanding and low-cost graphene paper is emerging among the most promising support materials. In this work, we have exploited the potential of using graphene paper with a two-dimensional active surface (2D-GP) as a carrier for enzyme immobilization to fabricate EBFCs, representing the first case of flexible graphene papers directly used in EBFCs. The 2D-GP electrodes were prepared via the assembly of graphene oxide (GO) nanosheets into a paper-like architecture, followed by reduction to form layered and cross-linked networks with good mechanical strength, high conductivity and little dependence on the degree of mechanical bending. 2D-GP electrodes served as both a current collector and an enzyme loading substrate that can be used directly as a bioanode and biocathode. Pyrroloquinoline quinone dependent glucose dehydrogenase (PQQ-GDH) and bilirubin oxidase (BOx) adsorbed on the 2D-GP electrodes both retain their biocatalytic activities. Electron transfer (ET) at the bioanode required Meldola blue (MB) as an ET mediator to shuttle electrons between PQQ-GDH and the electrode, but direct electron transfer (DET) at the biocathode was achieved. The resulting glucose/oxygen EBFC displayed a notable mechanical flexibility, with a wide open circuit voltage range up to 0.665 V and a maximum power density of approximately 4 μW cm-2 both fully competitive with reported values for related EBFCs, and with mechanical flexibility and facile enzyme immobilization as novel merits.

U2 - 10.1039/c9na00178f

DO - 10.1039/c9na00178f

M3 - Article

VL - 1

SP - 2562

EP - 2570

JO - Nanoscale Advances

JF - Nanoscale Advances

SN - 2516-0230

IS - 7

ER -