Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 11, Issue 9, Pages 1760-1763Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2009.07.010
Keywords
Platinum electrodes; Nitrate reduction; Electrocatalysis; Bi modified surfaces; Adatoms
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Funding
- European Commission [214936-2]
- MICINN [CTQ2006-04071/BQU]
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This work presents the effect of Bi modification of Pt(1 1 1) electrodes on the electroreduction of nitrate anions by using voltammetric and FTIR experiments. On Pt(1 1 1) nitrate consumption occurs at potentials lower than 0.35 V, but with Pt(1 1 1)/Bi this process is shifted to significantly higher potentials (0.6-0.7 V). In the latter surface N2O was observed as the main product in solution. Different forms of adsorbed NO were detected on the adatom covered surfaces as well as on clean Pt(1 1 1). (C) 2009 Elsevier B.V. All rights reserved.
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