Journal ArticleDOI
Bioelectrocatalysis-based dihydrogen/dioxygen fuel cell operating at physiological pH
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TLDR
In this article, a biochemical fuel cell was constructed using H2 as fuel to produce H2O in the reaction with O2 at neutral pH and moderate ambient temperature, using carbon felt as an electrode material for both the anode and the cathode and an anion exchange membrane as a separator.Abstract:
A biochemical fuel cell was constructed using H2 as fuel to produce H2O in the reaction with O2 at neutral pH and
ambient temperature. The cell uses carbon felt as an electrode material for both the anode and the
cathode and an anion exchange membrane as a separator. The anodic oxidation of H2 was accelerated by methyl viologen-mediated electrocatalysis with bacterial cells Desulfoibrio ulgaris (Hildenborough) as catalysts, and
the cathodic reduction of O2 was accelerated by 2,2′-azinobis(3-ethylbenzothiazoline-6-sulfonate)-mediated electrocatalysis
with bilirubin oxidase as a catalyst. The bioelectrocatalytic systems allowed the cell to operate
at 1.0 V with current 0.9 mA at an electrode of size 1.5 × 1.5 × 0.1 cm3. The cell voltage attained 1.17 V at
open circuit, which is close to the standard electromotive force 1.23 V. The cell voltage–current behavior is interpretable
by linear sweep voltammetry using the same electrode system. On
this basis, the
electrochemistry behind
the performance of the biochemical fuel cell is discussed.read more
Citations
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Journal ArticleDOI
Enzymatic biofuel cells for implantable and microscale devices.
TL;DR: This review paper summarizes the current state of enzymatic biofuel cell research in the context of foreseeable applications and assesses the future prospects of the technology.
Journal ArticleDOI
Biofuel cells and their development
TL;DR: While considerable chemical development of enzyme electrodes has occurred, relatively little progress has been made towards the engineering development of biofuel cells.
Journal ArticleDOI
Enzymes as working or inspirational electrocatalysts for fuel cells and electrolysis.
TL;DR: Fuel cells vary greatly in their power output, ranging from large-scale building-integrated systems, known as “combined heat and power” systems, to those that provide just enough power to operate electronics in special circumstances, such as an implanted device for sensing and controlling glucose levels in the body.
Journal ArticleDOI
Biofuel cells—Recent advances and applications
Frank Davis,Séamus P.J. Higson +1 more
TL;DR: This review is intended to largely concentrate on and give an overview of the advances made in recent years in this area together with a discussion surrounding the practical application of biofuel cells.
Journal ArticleDOI
Direct electron transfer between copper-containing proteins and electrodes
Sergey Shleev,Jan Tkac,Jan Tkac,Andreas Christenson,Tautgirdas Ruzgas,Alexander I. Yaropolov,James W. Whittaker,Lo Gorton +7 more
TL;DR: It is shown that long-range electron transfer between these enzymes and electrodes can be established, and the mechanistic schemes of the DET processes are proposed.
References
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Journal ArticleDOI
A study of a series of recombinant fungal laccases and bilirubin oxidase that exhibit significant differences in redox potential, substrate specificity, and stability
Feng Xu,Woonsup Shin,Stephen H. Brown,Jill Angela Wahleithner,Uma M. Sundaram,Edward I. Solomon +5 more
TL;DR: It is speculated that structural differences in the substrate-activation site (a 'blue', type 1 copper center) control the redox potential range as well as substrate specificity, and the cystine content contributes to stability.
Journal ArticleDOI
A non-compartmentalized glucose ∣ O2 biofuel cell by bioengineered electrode surfaces
TL;DR: In this paper, a novel glucose ∣ O2 biofuel cell element was assembled by the engineering of layered bioelectrocatalytic electrodes, where the anode consists of a surface reconstituted glucose oxidase monolayer, whereas the cathode is presented by the reconstitiuted cytochrome c/cytochrome oxidase couple.
Journal ArticleDOI
A methanol/dioxygen biofuel cell that uses NAD+-dependent dehydrogenases as catalysts: application of an electro-enzymatic method to regenerate nicotinamide adenine dinucleotide at low overpotentials
TL;DR: Results reflect the low overpotential at which NADH is oxidized and demonstrate a new approach to lowering voltage losses in biofuel cells due to activation overpotentials.
Journal ArticleDOI
Electro-enzymatic reduction of dioxygen to water in the cathode compartment of a biofuel cell
TL;DR: In this article, the redox mediator 2,2′-azinobis (3-ethylbenzothiazoline-6-sulfonate) was used to reduce dioxygen to water using the fungal enzyme, laccase, as the catalyst for homogeneous electron transfer and the results obtained when this chemistry was used in the cathode compartment of a biofuel cell.
Journal ArticleDOI
Bioelectrocatalytic reduction of dioxygen to water at neutral pH using bilirubin oxidase as an enzyme and 2,2′-azinobis (3-ethylbenzothiazolin-6-sulfonate) as an electron transfer mediator
TL;DR: In this article, a bioelectrocatalytic system using a carbon felt electrode has been examined and discussed in view of the cathode reaction in a bio-fuel cell.