Bio-Fuel Cell Air Cathode Based on Direct Electron Transfer

2006 ◽  
Keyword(s):  
Electron Transfer ◽  
Fuel Cell ◽  
Direct Electron Transfer ◽  
Air Cathode

scholarly journals Recent Advances in the Direct Electron Transfer-Enabled Enzymatic Fuel Cells

2021 ◽  
Vol 8 ◽  
Author(s):  
Sooyoun Yu ◽  
Nosang V. Myung
Keyword(s):  
Electron Transfer ◽  
Fuel Cell ◽  
Active Site ◽  
Electrode Surface ◽  
Oxidation Reaction ◽  
Direct Electron Transfer ◽  
Implantable Devices ◽  
Protein Matrix ◽  
Enzyme Active Site ◽  
Enzymatic Fuel Cell

Direct electron transfer (DET), which requires no mediator to shuttle electrons from enzyme active site to the electrode surface, minimizes complexity caused by the mediator and can further enable miniaturization for biocompatible and implantable devices. However, because the redox cofactors are typically deeply embedded in the protein matrix of the enzymes, electrons generated from oxidation reaction cannot easily transfer to the electrode surface. In this review, methods to improve the DET rate for enhancement of enzymatic fuel cell performances are summarized, with a focus on the more recent works (past 10 years). Finally, progress on the application of DET-enabled EFC to some biomedical and implantable devices are reported.

scholarly journals A one-compartment fructose/air biological fuel cell based on direct electron transfer

2009 ◽  
Vol 25 (2) ◽  
pp. 326-331 ◽  
Author(s):  
Xuee Wu ◽  
Feng Zhao ◽  
John R. Varcoe ◽  
Alfred E. Thumser ◽  
Claudio Avignone-Rossa ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Fuel Cell ◽  
Direct Electron Transfer ◽  
Biological Fuel Cell

scholarly journals Comparison of Electrode Reduction Activities of Geobacter sulfurreducens and an Enriched Consortium in an Air-Cathode Microbial Fuel Cell

2008 ◽  
Vol 74 (23) ◽  
pp. 7348-7355 ◽  
Author(s):  
Shun'ichi Ishii ◽  
Kazuya Watanabe ◽  
Soichi Yabuki ◽  
Bruce E. Logan ◽  
Yuji Sekiguchi
Keyword(s):  
Electron Transfer ◽  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Current Density ◽  
Transfer Rate ◽  
Geobacter Sulfurreducens ◽  
Electron Transfer Rate ◽  
Air Cathode ◽  
Anodic Reaction ◽  
Density And Biomass

ABSTRACT An electricity-generating bacterium, Geobacter sulfurreducens PCA, was inoculated into a single-chamber, air-cathode microbial fuel cell (MFC) in order to determine the maximum electron transfer rate from bacteria to the anode. To create anodic reaction-limiting conditions, where electron transfer from bacteria to the anode is the rate-limiting step, anodes with electrogenic biofilms were reduced in size and tests were conducted using anodes of six different sizes. The smallest anode (7 cm2, or 1.5 times larger than the cathode) achieved an anodic reaction-limiting condition as a result of a limited mass of bacteria on the electrode. Under these conditions, the limiting current density reached a maximum of 1,530 mA/m2, and power density reached a maximum of 461 mW/m2. Per-biomass efficiency of the electron transfer rate was constant at 32 fmol cell−1 day−1 (178 μmol g of protein−1 min−1), a rate comparable to that with solid iron as the electron acceptor but lower than rates achieved with fumarate or soluble iron. In comparison, an enriched electricity-generating consortium reached 374 μmol g of protein−1 min−1 under the same conditions, suggesting that the consortium had a much greater capacity for electrode reduction. These results demonstrate that per-biomass electrode reduction rates (calculated by current density and biomass density on the anode) can be used to help make better comparisons of electrogenic activity in MFCs.

scholarly journals Miniature Direct Electron Transfer Based Enzymatic Fuel Cell Operating in Human Sweat and Saliva

Fuel Cells ◽  
2014 ◽  
Vol 14 (6) ◽  
pp. 1050-1056 ◽  
Author(s):  
M. Falk ◽  
D. Pankratov ◽  
L. Lindh ◽  
T. Arnebrant ◽  
S. Shleev
Keyword(s):  
Electron Transfer ◽  
Fuel Cell ◽  
Direct Electron Transfer ◽  
Human Sweat ◽  
Enzymatic Fuel Cell

Enzyme orientation for direct electron transfer in an enzymatic fuel cell with alcohol oxidase and laccase electrodes

2014 ◽  
Vol 61 ◽  
pp. 569-574 ◽  
Author(s):  
Andrés A. Arrocha ◽  
Ulises Cano-Castillo ◽  
Sergio A. Aguila ◽  
Rafael Vazquez-Duhalt
Keyword(s):  
Electron Transfer ◽  
Fuel Cell ◽  
Direct Electron Transfer ◽  
Alcohol Oxidase ◽  
Enzymatic Fuel Cell

A novel wireless glucose sensor employing direct electron transfer principle based enzyme fuel cell

2007 ◽  
Vol 22 (9-10) ◽  
pp. 2250-2255 ◽  
Author(s):  
Noriko Kakehi ◽  
Tomohiko Yamazaki ◽  
Wakako Tsugawa ◽  
Koji Sode
Keyword(s):  
Electron Transfer ◽  
Fuel Cell ◽  
Glucose Sensor ◽  
Direct Electron Transfer ◽  
Transfer Principle
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