TY - JOUR
T1 - Nanostructured Pt/WOx-C solids as electrocatalyst for PEMFC
AU - Hernández-Pichardo, M. L.
AU - González-Huerta, R. G.
AU - Del Angel, P.
AU - Palacios-González, E.
AU - Paredes-Carrera, S. P.
PY - 2012
Y1 - 2012
N2 - Platinum nanoparticles supported on high surface area carbon black (e.g., Vulcan XC-72) are the most commonly used catalysts for both cathode and anode in proton exchange membrane fuel cells (PEMFCs), however, some other catalysts such as Pt/MoOxand Pt/WOx are also considered promising, due to their higher activity, stability and enhanced CO tolerance. This work is focused on the synthesis and characterization of nanostructured Pt/WO x-C as both cathode and anode electrocatalysts for PEMFCs. The Pt deposit on the surface of the support is a crucial step in the synthesis of the catalytic materials. Because of this, different synthesis methods were probed in order to find the conditions for the higher dispersion and accessibility of Platinum over the WOx-C support and to improve the PEMFC cathode stability. The catalysts were prepared by UV and ultrasound assisted approaches, and characterized by Transmission Electron Microscopy as well as lineal and cyclic voltammetry.
AB - Platinum nanoparticles supported on high surface area carbon black (e.g., Vulcan XC-72) are the most commonly used catalysts for both cathode and anode in proton exchange membrane fuel cells (PEMFCs), however, some other catalysts such as Pt/MoOxand Pt/WOx are also considered promising, due to their higher activity, stability and enhanced CO tolerance. This work is focused on the synthesis and characterization of nanostructured Pt/WO x-C as both cathode and anode electrocatalysts for PEMFCs. The Pt deposit on the surface of the support is a crucial step in the synthesis of the catalytic materials. Because of this, different synthesis methods were probed in order to find the conditions for the higher dispersion and accessibility of Platinum over the WOx-C support and to improve the PEMFC cathode stability. The catalysts were prepared by UV and ultrasound assisted approaches, and characterized by Transmission Electron Microscopy as well as lineal and cyclic voltammetry.
KW - Electrocatalyst
KW - Platinum
KW - Polymer electrolyte fuel cell
UR - http://www.scopus.com/inward/record.url?scp=84862675222&partnerID=8YFLogxK
U2 - 10.14447/jnmes.v15i3.61
DO - 10.14447/jnmes.v15i3.61
M3 - Artículo
SN - 1480-2422
VL - 15
SP - 165
EP - 170
JO - Journal of New Materials for Electrochemical Systems
JF - Journal of New Materials for Electrochemical Systems
IS - 3
ER -