If you are experiencing problems downloading PDF or HTML fulltext, our helpdesk recommend clearing your browser cache and trying again. If you need help in clearing your cache, please click here . Still need help? Email help@ingentaconnect.com

Multi-Walled Carbon Nanotube-Based Glucose/O2 Biofuel Cell with Glucose Oxidase and Laccase as Biocatalysts

$113.00 plus tax (Refund Policy)

Buy Article:

Abstract:

This study describes a multi-walled carbon nanotube-based glucose/O2 biofuel cell with glucose oxidase and laccase as the anodic and cathodic biocatalysts, respectively. Upon being functionalized with L-α-phosphatidylcholine, one kind of lipid, multi-walled carbon nanotubes can serve as a support for glucose oxidase to form a three-dimensional, conducting and uniform bioanode that possesses a good bioelectrocatalytic activity toward the oxidation of glucose biofuel with solution-phased ferrocene monocarboxylic acid as the mediator to shuttle the electron transfer between glucose oxidase and multi-walled carbon nanotubes. In a similar way, the lipid-functionalized multiwalled carbon nanotubes can also be used to support the cathodic biocatalyst, i.e., laccase, and, more remarkably, to facilitate the direct electron transfer of laccase. As a result, the prepared biocathode is very active toward the reduction of oxygen without using any electron-transfer mediators. The biofuel cell has a 0.45 V open circuit potential and 34 A/cm2 short circuit current density in phosphate buffer (pH 6.0) separated with Nafion-117 membrane with anodic compartment containing 15 mM glucose and 2 mM ferrocene monocarboxylic acid and with cathodic compartment being saturated with O2 at room temperature. A maximum power density of 3.2 W/cm2 is obtained with ca. 0.2 V potential output.

Keywords: BIOELECTROCATALYSIS; BIOELECTROCHEMISTRY; ENZYMATIC BIOFUEL CELL; MULTI-WALLED CARBON NANOTUBES

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2007.346

Publication date: April 1, 2007

More about this publication?
  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
  • Editorial Board
  • Information for Authors
  • Subscribe to this Title
  • Terms & Conditions
  • ingentaconnect is not responsible for the content or availability of external websites
Related content

Tools

Favourites

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more