1. Date of download: 10/22/2017
Copyright © ASME. All rights reserved.
From: Preparation of Electrocatalysts for Polymer Electrolyte Fuel Cell Cathodes From Au-Pt Core-Shell Nanoparticles Synthesized by Simultaneous Aqueous-Phase Reduction
J. Fuel Cell Sci. Technol. 2013;10(4): doi: /
Figure Legend:
TEM images of Au-Pt bimetallic nanoparticles supported on carbon black (Vulcan XC-72) (a) before thermal treatments, (b) after thermal treatment in air at 170 °C for 144 h, (c) at 200 °C for 2 h, and (d) at 250 °C for 0.5 h

2. Date of download: 10/22/2017
Copyright © ASME. All rights reserved.
From: Preparation of Electrocatalysts for Polymer Electrolyte Fuel Cell Cathodes From Au-Pt Core-Shell Nanoparticles Synthesized by Simultaneous Aqueous-Phase Reduction
J. Fuel Cell Sci. Technol. 2013;10(4): doi: /
Figure Legend:
TG-DTA profiles of Au-Pt bimetallic nanoparticles supported on carbon black (a) before thermal treatment and (b) after the thermal treatment at 170 °C for 144 h, recorded in air at the heating rate of 25 °C/min

3. Date of download: 10/22/2017
Copyright © ASME. All rights reserved.
From: Preparation of Electrocatalysts for Polymer Electrolyte Fuel Cell Cathodes From Au-Pt Core-Shell Nanoparticles Synthesized by Simultaneous Aqueous-Phase Reduction
J. Fuel Cell Sci. Technol. 2013;10(4): doi: /
Figure Legend:
Photographs of stains on filter paper created by aqueous dispersion of Au-Pt catalyst powders (a) before and (b) after the thermal treatment at 170 °C for 144 h

4. Date of download: 10/22/2017
Copyright © ASME. All rights reserved.
From: Preparation of Electrocatalysts for Polymer Electrolyte Fuel Cell Cathodes From Au-Pt Core-Shell Nanoparticles Synthesized by Simultaneous Aqueous-Phase Reduction
J. Fuel Cell Sci. Technol. 2013;10(4): doi: /
Figure Legend:
Cyclic voltammograms in 0.5 M H2SO4 at a scan rate of 90 mV/s for (a) Au nanoparticles, (b) Pt nanoparticles, (c) equivalent mixture of Au and Pt nanoparticles, and (d) Au-Pt bimetallic nanoparticles treated at 170 °C for 144 h, supported on carbon black

5. Date of download: 10/22/2017
Copyright © ASME. All rights reserved.
From: Preparation of Electrocatalysts for Polymer Electrolyte Fuel Cell Cathodes From Au-Pt Core-Shell Nanoparticles Synthesized by Simultaneous Aqueous-Phase Reduction
J. Fuel Cell Sci. Technol. 2013;10(4): doi: /
Figure Legend:
Pt L3-edge XANES spectra of Au-Pt core-shell catalyst, Pt metal foil, and PtO2

6. Date of download: 10/22/2017
Copyright © ASME. All rights reserved.
From: Preparation of Electrocatalysts for Polymer Electrolyte Fuel Cell Cathodes From Au-Pt Core-Shell Nanoparticles Synthesized by Simultaneous Aqueous-Phase Reduction
J. Fuel Cell Sci. Technol. 2013;10(4): doi: /
Figure Legend:
Comparison of cathode catalyst performance in PEFC operations. (a) Cell voltage versus current density and (b) power density versus current density plots for six cathode catalysts using Au-Pt core-shell nanoparticles supported on Vulcan XC72, thermally treated in different conditions. Pt loadings for the cathode are (●) 0.167, (○) 0.189, (▴) 0.189, (△) 0.230, (▪) 0.271, and (□) mgPt/cm2. Pt loadings for the anode are within the range 0.07 to 0.09 mgPt/cm2.

7. Date of download: 10/22/2017
Copyright © ASME. All rights reserved.
From: Preparation of Electrocatalysts for Polymer Electrolyte Fuel Cell Cathodes From Au-Pt Core-Shell Nanoparticles Synthesized by Simultaneous Aqueous-Phase Reduction
J. Fuel Cell Sci. Technol. 2013;10(4): doi: /
Figure Legend:
Tafel plots of cell voltage versus Pt-mass activity (A/mgPt) characteristics, for comparing cathode performances of the Au-Pt core-shell catalyst treated at 170 °C for 144 h and a commercial Pt catalyst (EC-20-PTC, ElectroChem)