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Recent Advances in Enzymatic Fuel Cells: Experiments and Modeling

TLDR
In this paper, the major research activities concerned with the enzymatic fuel cells (anode and cathode development, system design, modeling) by highlighting the current problems (low cell voltage, low current density, stability) will be presented.
Abstract
Enzymatic fuel cells convert the chemical energy of biofuels into electrical energy. Unlike traditional fuel cell types, which are mainly based on metal catalysts, the enzymatic fuel cells employ enzymes as catalysts. This fuel cell type can be used as an implantable power source for a variety of medical devices used in modern medicine to administer drugs, treat ailments and monitor bodily functions. Some advantages in comparison to conventional fuel cells include a simple fuel cell design and lower cost of the main fuel cell components, however they suffer from severe kinetic limitations mainly due to inefficiency in electron transfer between the enzyme and the electrode surface. In this review article, the major research activities concerned with the enzymatic fuel cells (anode and cathode development, system design, modeling) by highlighting the current problems (low cell voltage, low current density, stability) will be presented.

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Journal ArticleDOI

Nanotechnology-Enabled Energy Harvesting for Self-Powered Micro-/Nanosystems

TL;DR: Various approaches for energy harvesting to meet the future demand for self-powered MNSs are covered.
Journal ArticleDOI

Mediatorless high-power glucose biofuel cells based on compressed carbon nanotube-enzyme electrodes

TL;DR: The efficient wiring of enzymes in a conductive pure carbon nanotube matrix for the fabrication of a glucose biofuel cell (GBFC) that remains stable for 1 month and delivers 1 mW cm−2 power density under physiological conditions and are the best performances obtained for a GBFC.
Journal ArticleDOI

Bioelectrochemical systems (BES) for sustainable energy production and product recovery from organic wastes and industrial wastewaters

TL;DR: Bioelectrochemical systems (BESs) as discussed by the authors are unique systems capable of converting the chemical energy of organic waste including low-strength wastewaters and lignocellulosic biomass into electricity or hydrogen/chemical products in microbial fuel cells or microbial electrolysis cells.
Journal ArticleDOI

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

Electrochemical sensors and biosensors based on redox polymer/carbon nanotube modified electrodes: a review.

TL;DR: It is described here that the specific combination of phenazine/triphenylmethane polymers with CNT leads to an improved performance of the resulting sensing devices, because of their complementary electrical, electrochemical and mechanical properties, and also due to synergistic effects.
References
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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

Glucose oxidase: an ideal enzyme

TL;DR: The properties of glucose oxidase (GOD) are described in relation to the widespread use of this enzyme in biosensors, and the shortcomings of other enzymes that oxidize glucose are indicated.
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

Modeling transport in polymer-electrolyte fuel cells.

TL;DR: This review has highlighted the important effects that should be modeled and shown the vast complexities of transport within polymer-electrolyte fuel cells and the various ways they have been and can be modeled.
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