TY - GEN
T1 - Electrochemical characterization of palladium supported in thermally treated carbon for oxygen reduction reaction in acid media
AU - González-Huerta, R. G.
AU - Luna-Martínez, M. L.
AU - Solorza-Feria, O.
PY - 2009
Y1 - 2009
N2 - In proton exchange membrane fuel cell (PEMFC), the low interaction between the electrocatalyst and the support has been subjected of an intensive research in last years. The low interaction arises by a decreased contact between the support and the nano sized catalyst. In this paper the palladium supported in thermally treated carbon (Pd/TTC) was synthesized via the NaBH4 reduction of the PdCl2 precursor at 60°C. The supporting carbon was thermally treated at 200°C, 400°C, 600°C and 800°C. Structural characterization of the TTC was examined by Raman spectroscopy and the Pd/TTC morphology by SEM. Electrocatalyst activity for the oxygen reduction reaction was investigated by cyclic and linear voltammetry in 0.5M H 2SO4 at 25°C. The resulted Pd/TTC at 400°C and 600°C showed significantly higher activity following kinetics of four electrons transfer to water formation. This behavior is attributed to structural properties and superficial conditions of the supporting carbon.
AB - In proton exchange membrane fuel cell (PEMFC), the low interaction between the electrocatalyst and the support has been subjected of an intensive research in last years. The low interaction arises by a decreased contact between the support and the nano sized catalyst. In this paper the palladium supported in thermally treated carbon (Pd/TTC) was synthesized via the NaBH4 reduction of the PdCl2 precursor at 60°C. The supporting carbon was thermally treated at 200°C, 400°C, 600°C and 800°C. Structural characterization of the TTC was examined by Raman spectroscopy and the Pd/TTC morphology by SEM. Electrocatalyst activity for the oxygen reduction reaction was investigated by cyclic and linear voltammetry in 0.5M H 2SO4 at 25°C. The resulted Pd/TTC at 400°C and 600°C showed significantly higher activity following kinetics of four electrons transfer to water formation. This behavior is attributed to structural properties and superficial conditions of the supporting carbon.
UR - http://www.scopus.com/inward/record.url?scp=79955455445&partnerID=8YFLogxK
U2 - 10.1149/1.3268394
DO - 10.1149/1.3268394
M3 - Contribución a la conferencia
AN - SCOPUS:79955455445
SN - 9781607681267
T3 - ECS Transactions
SP - 267
EP - 274
BT - MES 24
PB - Electrochemical Society Inc.
ER -