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Effect of oxidative heat-treatment on electrochemical properties and oxygen reduction reaction (ORR) activity of Pd-Co alloy catalysts

DSpace at IIT Bombay

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Title Effect of oxidative heat-treatment on electrochemical properties and oxygen reduction reaction (ORR) activity of Pd-Co alloy catalysts
 
Creator RAHUL, R
SINGH, RK
NEERGAT, M
 
Subject Heat-treatment
Pd oxide-based catalysts
Oxide reduction
ORR
ESA
FUEL-CELLS
PALLADIUM ELECTRODE
ALKALINE-SOLUTIONS
ELECTROCATALYSTS
NANOPARTICLES
ACID
ELECTROREDUCTION
PLATINUM
DURABILITY
SIZE
 
Description Pd-Co catalysts of various compositions are subjected to heat-treatment in an oxygen-containing atmosphere (5% oxygen and 95% argon by volume) and the catalysts are found to form oxides. On exposure to electrochemical conditions, the oxides get reduced in the potential range of 0.05-0.4 V of the voltammogram and the voltammetric features of the heat-treated catalyst are comparable to that of the corresponding as-prepared catalyst of same composition. The trends in electrochemical surface area (ESA), current due to formation of adsorbed-oxygenated species and activity towards oxygen reduction reaction (ORR) with catalyst composition are similar and they are in the order of Pd
 
Publisher ELSEVIER SCIENCE SA
 
Date 2014-12-28T16:39:21Z
2014-12-28T16:39:21Z
2014
 
Type Article
 
Identifier JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 712223-229
1572-6657
1873-2569
http://dx.doi.org/10.1016/j.jelechem.2013.11.011
http://dspace.library.iitb.ac.in/jspui/handle/100/16906
 
Language English