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

Scheduled maintenance work on Wednesday 27th March 2019 from 11:00 AM to 1:00 PM (GMT).

During this time our website performance may be temporarily affected. We apologise for any inconvenience this might cause and thank you for your patience.


Issue 50, 2016, Issue in Progress
Previous Article Next Article

Electrocatalysis by H2–O2 membrane-free fuel cell enzymes in aqueous microenvironments confined by an ionic liquid

Author affiliations

Abstract

An O2-tolerant [NiFe] hydrogenase and a blue Cu oxidase exhibit excellent catalytic electrochemistry under almost dry conditions – inspiring the concept of a new type of miniature fuel cell able to provide a potential difference close to one volt. Each enzyme is immobilized on a carbon electrode that contacts an aqueous microvolume (1 μL) surrounded by an immiscible, aprotic ionic liquid. Separately, the enzymes display excellent electrocatalytic activity: brought together at a synaptic junction, an anode and cathode modified with each enzyme constitute a membrane-less fuel cell that produces over 0.8 V when equilibrated with a 96% H2–4% O2 mixture. The results show there is considerable scope for using ionic liquids to miniaturize selective enzyme fuel cells.

Graphical abstract: Electrocatalysis by H2–O2 membrane-free fuel cell enzymes in aqueous microenvironments confined by an ionic liquid

Back to tab navigation

Publication details

The article was received on 11 Mar 2016, accepted on 20 Apr 2016 and first published on 25 Apr 2016


Article type: Paper
DOI: 10.1039/C6RA06548A
Author version
available:
Download author version (PDF)
Citation: RSC Adv., 2016,6, 44129-44134

  •   Request permissions

    Electrocatalysis by H2–O2 membrane-free fuel cell enzymes in aqueous microenvironments confined by an ionic liquid

    Y. Wang, T. F. Esterle and F. A. Armstrong, RSC Adv., 2016, 6, 44129
    DOI: 10.1039/C6RA06548A

Search articles by author

Spotlight

Advertisements