TY - JOUR
T1 - Pt-Au nanoparticles on graphene for oxygen reduction reaction
T2 - Stability and performance on proton exchange membrane fuel cell
AU - Beltrán-Gastélum, M.
AU - Salazar-Gastélum, M. I.
AU - Flores-Hernández, J. R.
AU - Botte, G. G.
AU - Pérez-Sicairos, S.
AU - Romero-Castañon, T.
AU - Reynoso-Soto, E.
AU - Félix-Navarro, R. M.
N1 - Funding Information:
We would like to take this opportunity to thank Tecnológico Nacional de México (TecNM) under grant 5873.16-P for supporting this research project. Mara Beltrán-Gastélum acknowledges the doctoral fellowship from Consejo Nacional de Ciencia y Tecnología (CONACyT). We would like to thank to the Center for Electrochemical Engineering Research (CEER) at Ohio University (OU), and the National Science Foundation through the Major Research Instrumentation Grant # CBET-1126350 for the Transmission Electron Microscopy images and measurements. Our acknowledgements to L. I. Albarrán-Sánchez, for the MEAs fabrication. Additionaly, M. Beltrán-Gastélum would like to thank to Consejo Nacional de Ciencia y Tecnología for her Ph. D. fellowship.
Publisher Copyright:
© 2019 Elsevier Ltd
PY - 2019/8/15
Y1 - 2019/8/15
N2 - Pt and Pt-Au nanoparticles supported on reduced graphene oxide (rGO) were synthesized by reverse microemulsion method with metal loading of 20 wt% and 10: 10 wt%, respectively. The nanomaterials were characterized by Raman, X-ray diffraction, thermogravimetric analysis and transmission electronic microscope. The obtained materials were evaluated as electrocatalysts for Oxygen Reduction Reaction (ORR), obtaining the highest catalytic activity with Pt-Au/rGO compared to Pt/rGO; besides, the stability of the catalyst is determined until 50,000 cycles. Pt-Au/rGO was used to prepare membrane electrode assembly (MEA), in order to study the performance of this nanomaterial in the proton exchange membrane fuel cell (PEMFC). The maximum power density is 20 mW cm−2 and 70 mW cm−2 for Pt/rGO and Pt-Au/rGO, respectively, those values increased up to 365 mW cm−2, when Pt-Au nanoparticles supported on multiwall carbon nanotubes (CNT) was used as spacer.
AB - Pt and Pt-Au nanoparticles supported on reduced graphene oxide (rGO) were synthesized by reverse microemulsion method with metal loading of 20 wt% and 10: 10 wt%, respectively. The nanomaterials were characterized by Raman, X-ray diffraction, thermogravimetric analysis and transmission electronic microscope. The obtained materials were evaluated as electrocatalysts for Oxygen Reduction Reaction (ORR), obtaining the highest catalytic activity with Pt-Au/rGO compared to Pt/rGO; besides, the stability of the catalyst is determined until 50,000 cycles. Pt-Au/rGO was used to prepare membrane electrode assembly (MEA), in order to study the performance of this nanomaterial in the proton exchange membrane fuel cell (PEMFC). The maximum power density is 20 mW cm−2 and 70 mW cm−2 for Pt/rGO and Pt-Au/rGO, respectively, those values increased up to 365 mW cm−2, when Pt-Au nanoparticles supported on multiwall carbon nanotubes (CNT) was used as spacer.
KW - Graphene
KW - Hydrogen fuel cell
KW - Nanomaterial
KW - Oxygen reduction reaction
KW - Stability
UR - http://www.scopus.com/inward/record.url?scp=85067256672&partnerID=8YFLogxK
U2 - 10.1016/j.energy.2019.06.033
DO - 10.1016/j.energy.2019.06.033
M3 - Article
AN - SCOPUS:85067256672
VL - 181
SP - 1225
EP - 1234
JO - Energy
JF - Energy
SN - 0360-5442
ER -