Giuseppe A Camara

Prof. Giuseppe A Camara

orcid

Research Focus & Metrics

Academic Career Length

27Years (2000-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 May 2005 in Journal of Electroanalytical Chemistry
Verified
Journal Article
Closed access
Giuseppe A CamaraGiuseppe A Camara
Giuseppe A Camara
TIT. Iwasita
T. Iwasita

1 January 2002 in Journal of the Electrochemical Society
Verified
Journal Article
Closed access
PDF file
Giuseppe A CamaraGiuseppe A Camara
Giuseppe A Camara
ETEdson A Ticianelli
Edson A Ticianelli
SMS. Mukerjee
S. Mukerjee
SLS. J. Lee
S. J. Lee
JMJ. McBreen
J. McBreen
The CO tolerance mechanism of the hydrogen oxidation reaction was investigated on several highly dispersed carbon-supported nanocrystalline Pt and binary Pt alloys. For this purpose, current/potential behavior was derived from half-cells under actual proton exchange membrane fuel cell operating conditions and correlated with expressions derived from kinetic models. Kinetic analyses have shown that the CO poisoning effect on Pt/C, PtRu/C, and PtSn/C catalysts occurs through a free Pt site attack mechanism, involving bridge- and linear-bonded adsorbed CO. For all catalysts, the onset of CO oxidation occurs via the bridge-bonded species, but for PtRu/C and PtSn/C, the reaction starts at smaller potentials. Under this condition, the hydrogen oxidation currents are generated on the vacancies of a carbon monoxide adsorbed layer created when some of the bridge-bonded CO molecules are oxidized. The linearly adsorbed CO is oxidized at higher overpotentials, leading to an increase of the holes on the CO layer and thus of the rate of the hydrogen oxidation process. © 2002 The Electrochemical Society. All rights reserved.

1 August 2004 in Electrochemistry Communications
Verified
Journal Article
Closed access
Giuseppe A CamaraGiuseppe A Camara
Giuseppe A Camara
RLR.B de Lima
R.B de Lima
TIT Iwasita
T Iwasita

1 October 2003 in Electrochimica Acta
Verified
Journal Article
Closed access
ESElisabete I. Santiago
Elisabete I. Santiago
Giuseppe A CamaraGiuseppe A Camara
Giuseppe A Camara
ETEdson A Ticianelli
Edson A Ticianelli

1 August 2010 in Electrochemistry Communications
Verified
Journal Article
Open access
DJDéborah Z. Jeffery
Déborah Z. Jeffery
Giuseppe A CamaraGiuseppe A Camara
Giuseppe A Camara

1 November 2005 in Journal of Electroanalytical Chemistry
Verified
Journal Article
Closed access
Giuseppe A CamaraGiuseppe A Camara
Giuseppe A Camara
RLR.B. de Lima
R.B. de Lima
TIT. Iwasita
T. Iwasita