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Taking cues from nature: Hemoglobin catalysed oxygen reduction

Abstract:
We describe experiments which elucidate the reaction mechanism of electrochemical oxygen reduction reaction (ORR) on a glassy carbon electrode modified with hemoglobin in an aqueous environment but with the hemoglobin physically separated from the electrode by a porous Nafion layer. Catalytic amplification of the current signal from the reduction of oxygen in a first electron transfer step is observed in the presence of hemoglobin immobilized within a Nafion coating. An overall four electron ORR mechanism is inferred and validated.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1016/j.apmt.2017.01.005

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Institution:
University of Oxford
Oxford college:
St John's College
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Chemistry
Sub department:
Physical & Theoretical Chem
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Chemistry
Sub department:
Physical & Theoretical Chem
Role:
Author
Publisher:
Elsevier Publisher's website
Journal:
Applied Materials Today Journal website
Volume:
7
Pages:
82–90
Publication date:
2017-03-08
Acceptance date:
2017-01-20
DOI:
ISSN:
2352-9407
Source identifiers:
673142
Keywords:
Pubs id:
pubs:673142
UUID:
uuid:05f93050-7332-43eb-89c5-d92b7f0ccf42
Local pid:
pubs:673142
Deposit date:
2017-01-26

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