Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance upgrade on Thursday 4th of May 2017 from 8.00am to 9.00am (BST).

During this time our websites will be offline temporarily. If you have any questions please use the feedback button on this page. We apologise for any inconvenience this might cause and thank you for your patience.


Issue 4, 2012
Previous Article Next Article

Order-of-magnitude enhancement of an enzymatic hydrogen-air fuel cell based on pyrenyl carbon nanostructures

Author affiliations

Abstract

A fuel cell featuring two enzymes as electrocatalysts on specially modified electrodes—an O2-tolerant hydrogenase for the anode and bilirubin oxidase for the cathode—produces more than 0.1 mW cm−2 (electrode) at 1 V from a non-explosive hydrogen-air (80/20) mixture. The anode and cathode are prepared by covalently attaching the respective enzymes, via 1-pyrenebutyric acid functionalities, to multiwalled carbon nanotubes pre-coated on graphite. The fuel cell performance, which is limited by the reduction of O2 (4%), represents an order-of-magnitude improvement over analogous cells in which the enzymes are conventionally adsorbed on graphite. These results bring forward realization of what is possible for niche devices able to generate small power outputs from gas mixtures under ambient conditions.

Graphical abstract: Order-of-magnitude enhancement of an enzymatic hydrogen-air fuel cell based on pyrenyl carbon nanostructures

Back to tab navigation
Please wait while Download options loads

Supplementary files

Publication details

The article was received on 22 Dec 2011, accepted on 08 Feb 2012 and first published on 09 Feb 2012


Article type: Edge Article
DOI: 10.1039/C2SC01103D
Citation: Chem. Sci., 2012,3, 1015-1023
  •   Request permissions

    Order-of-magnitude enhancement of an enzymatic hydrogen-air fuel cell based on pyrenyl carbon nanostructures

    S. Krishnan and F. A. Armstrong, Chem. Sci., 2012, 3, 1015
    DOI: 10.1039/C2SC01103D

Search articles by author