Journal ArticleDOI
Complete Oxidation of Glycerol in an Enzymatic Biofuel Cell
TLDR
With the addition of oxalate oxidase, these glycerol/air biofuel cells have yielded power densities of up to 1.32 mW cm–2, and have the ability to operate at high fuel concentrations.Abstract:
Glycerol has drawn increasing attention as a prospective fuel because it has many desirable qualities and is abundant due to the fact that it is a by-product of biodiesel production Qualities such as nontoxicity, extremely low vapour pressure, low flammability and high energy density make glycerol very appealing as an energy source Previous research has shown that partial oxidation of glycerol can occur at enzymatic bioanodes of biofuel cells utilising PQQ-dependent alcohol dehydrogenase (PQQ-ADH) and PQQ-dependent aldehyde dehydrogenase (PQQ-AldDH) In this paper, we describe the use of glycerol for a fuel in an enzymatic biofuel cell that utilizes a three-enzyme cascade on the anode that can accomplish the complete oxidation of glycerol The bioanode that was developed contained PQQ-ADH, PQQ-AldDH and oxalate oxidase immobilised within a tetrabutylammonium-modified Nafion membrane Our previous research has shown that glycerol is an effective fuel with the PQQ-ADH and PQQ-AldDH but still was unable to be fully oxidised With the addition of oxalate oxidase, these glycerol/air biofuel cells have yielded power densities of up to 132 mW cm–2, and have the ability to operate at high fuel concentrations The oxidation products were confirmed with 13C NMR and comprised mainly 13C-labelled carbonate and glycerateread more
Citations
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Journal ArticleDOI
Anion-exchange membranes in electrochemical energy systems
John R. Varcoe,Plamen Atanassov,Dario R. Dekel,Andrew M. Herring,Michael A. Hickner,Paul A. Kohl,Anthony Kucernak,William E. Mustain,DC Kitty Nijmeijer,Keith Scott,Tongwen Xu,L Lin Zhuang +11 more
TL;DR: In this paper, an up-to-date perspective on the use of anion-exchange membranes in fuel cells, electrolysers, redox flow batteries, reverse electrodialysis cells, and bioelectrochemical systems (e.g. microbial fuel cells).
Journal ArticleDOI
Enzymatic biofuel cells: 30 years of critical advancements.
TL;DR: This review details the advancements in the field of enzymatic biofuel cells over the last 30 years, including strategies for improving operational stability and electrochemical performance, as well as device fabrication for a variety of applications, including implantable bio fuel cells and self-powered sensors.
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Enzymatic fuel cells: Recent progress
TL;DR: A review of recent efforts to improve electron transfer between the enzymes and electrodes, in the presence or absence of mediators, with most attention on implantable or semi-implantable enzymatic fuel cells that harvest the body's own fuel, glucose, coupled to oxygen reduction, to provide power to biomedical devices is presented in this paper.
Journal ArticleDOI
Nanomaterials for bio-functionalized electrodes: recent trends
TL;DR: This review is discussing the interest of both nano-objects and nano-engineered and/or nanostructured materials for the rational design of bio-functionalized electrodes and related (bio)sensing systems.
Journal ArticleDOI
Tackling the Challenges of Enzymatic (Bio)Fuel Cells
Xinxin Xiao,Hong-qi Xia,Ranran Wu,Lu Bai,Lu Yan,Edmond Magner,Serge Cosnier,Elisabeth Lojou,Zhiguang Zhu,Aihua Liu +9 more
TL;DR: A range of strategies for improving the stability of EFCs are evaluated, including the use of different enzyme immobilization approaches, tuning enzyme properties, designing protective matrixes, and using microbial surface displaying enzymes.
References
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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.
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Glucose oxidase anode for biofuel cell based on direct electron transfer
TL;DR: In this paper, a new design concept of a glucose oxidase (GO x ) electrode as an anode for the biofuel cell based on direct electron transfer (DET) between the active site of an enzyme and the multi-walled carbon nanotube (MWNT)-modified electrode surface was presented.
Journal ArticleDOI
Improving the environment for immobilized dehydrogenase enzymes by modifying Nafion with tetraalkylammonium bromides.
TL;DR: The ability to immobilize dehydrogenase enzymes in Nafion that has been modified with quaternary ammonium bromides is examined to determine the activity of the immobilized enzyme and to examine the transport of coenzyme within the membrane.
Journal ArticleDOI
Development of glycerol/O2 biofuel cell
TL;DR: Glycerol is an attractive fuel for a fuel cell, because it is non-toxic, nonvolatile, non-flammable, and is abundant due to the fact that it is a byproduct of biodiesel production.
Journal ArticleDOI
Microchip-based ethanol/oxygen biofuel cell
TL;DR: This research demonstrates the feasibility of a microfabricated biofuel cell device that is powered by the addition of ethanol through a flow channel to a bioanode that has been modified with two layers.