TY - JOUR
T1 - Optimization of RuxSey electrocatalyst loading for oxygen reduction in a PEMFC
AU - González-Huerta, R. G.
AU - Guzman-Guzman, A.
AU - Solorza-Feria, O.
N1 - Funding Information:
This research project was financially supported by the Consejo Nacional de Ciencia y Tecnología , CONACYT (Ref. 46094 ), Instituto de Ciencia y Tecnología del Distrito Federal , ICYTDF (Ref. OCF-OSF y PICSO8-37 ) and by the grant IPN-SIP (Ref. 20090433 y 20100530 ).
PY - 2010/11
Y1 - 2010/11
N2 - The synthesis, characterization and optimization of RuxSe y catalyst loading as a cathode electrode for a single polymer electrolyte membrane fuel cell, PEMFC were investigated. RuxSe y catalyst was synthesized via a decarbonylation of Ru 3(CO)12 and elemental selenium in 1,6-hexanediol under refluxing conditions for 2 h. The powder electrocatalyst was characterized by scanning electron microscopy (SEM), atomic force microscopy (AFM), and examined for the oxygen reduction reaction (ORR) in 0.5M H2SO4 by rotating disk electrode (RDE) and in membrane-electrode assemblies, MEAs for a single PEMFC. Results indicate the formation of agglomerates of crystalline particles with nanometric size embedded in an amorphous phase. The catalyst exhibited high current density and lower overpotential for the ORR compared to that of Rux cluster catalyst. Dispersed RuxSey catalyst loading on Vulcan carbon was optimized as a cathode electrode by performance testing in a single H2-O2 fuel cell.
AB - The synthesis, characterization and optimization of RuxSe y catalyst loading as a cathode electrode for a single polymer electrolyte membrane fuel cell, PEMFC were investigated. RuxSe y catalyst was synthesized via a decarbonylation of Ru 3(CO)12 and elemental selenium in 1,6-hexanediol under refluxing conditions for 2 h. The powder electrocatalyst was characterized by scanning electron microscopy (SEM), atomic force microscopy (AFM), and examined for the oxygen reduction reaction (ORR) in 0.5M H2SO4 by rotating disk electrode (RDE) and in membrane-electrode assemblies, MEAs for a single PEMFC. Results indicate the formation of agglomerates of crystalline particles with nanometric size embedded in an amorphous phase. The catalyst exhibited high current density and lower overpotential for the ORR compared to that of Rux cluster catalyst. Dispersed RuxSey catalyst loading on Vulcan carbon was optimized as a cathode electrode by performance testing in a single H2-O2 fuel cell.
KW - Membrane-electrode assembly
KW - Oxygen reduction reaction
KW - PEMFC
KW - Ruthenium catalyst
UR - http://www.scopus.com/inward/record.url?scp=77957706114&partnerID=8YFLogxK
U2 - 10.1016/j.ijhydene.2010.08.051
DO - 10.1016/j.ijhydene.2010.08.051
M3 - Artículo
SN - 0360-3199
VL - 35
SP - 12115
EP - 12119
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
IS - 21
ER -