scholarly journals Initial conditioning of Polymer Eelectrolyte Membrane fuel cell by temperature and potential cycling

2015 ◽  
Vol 62 (1) ◽  
Author(s):  
Dario Bezmalinović ◽  
Jagoda Radošević ◽  
Frano Barbir
Keyword(s):  
Fuel Cell ◽  
Potential Cycling

Platinum Dissolution and Redeposition from Pt/C Fuel Cell Electrocatalyst at Potential Cycling

2018 ◽  
Vol 165 (6) ◽  
pp. F3161-F3165 ◽  
Author(s):  
Andraž Pavlišič ◽  
Primož Jovanovič ◽  
Vid Simon Šelih ◽  
Martin Šala ◽  
Nejc Hodnik ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Potential Cycling ◽  
Platinum Dissolution ◽  
Fuel Cell Electrocatalyst

scholarly journals In situ Liquid TEM Study for Degradation Mechanisms of Fuel Cell Catalysts during Potential Cycling Test

2015 ◽  
Vol 21 (S3) ◽  
pp. 1295-1296 ◽  
Author(s):  
Shinya Nagashima ◽  
Kenta Yoshida ◽  
Tomoki Hiroyama ◽  
Kun Liu ◽  
Yipu Kang ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Degradation Mechanisms ◽  
Potential Cycling ◽  
Cycling Test ◽  
Fuel Cell Catalysts

Surface oxidation of carbon supports due to potential cycling under PEM fuel cell conditions

2010 ◽  
Vol 55 (16) ◽  
pp. 4765-4771 ◽  
Author(s):  
Bharat Avasarala ◽  
Richard Moore ◽  
Pradeep Haldar
Keyword(s):  
Fuel Cell ◽  
Surface Oxidation ◽  
Pem Fuel Cell ◽  
Potential Cycling ◽  
Carbon Supports

The Effect of Potential Cycling on High Temperature PEM Fuel Cell with Different Flow Field Designs

Fuel Cells ◽  
2019 ◽  
Vol 19 (3) ◽  
pp. 231-243 ◽  
Author(s):  
V. Bandlamudi ◽  
P. Bujlo ◽  
V. Linkov ◽  
S. Pasupathi
Keyword(s):  
High Temperature ◽  
Fuel Cell ◽  
Flow Field ◽  
Pem Fuel Cell ◽  
Potential Cycling ◽  
High Temperature Pem

scholarly journals Comparison of Single-Walled and Multiwalled Carbon Nanotubes Durability as Pt Support in Gas Diffusion Electrodes

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Mehdi Asgari ◽  
Elaheh Lohrasbi
Keyword(s):  
Carbon Nanotubes ◽  
Fuel Cell ◽  
Surface Area ◽  
Multiwalled Carbon Nanotubes ◽  
Gas Diffusion ◽  
Support Surface ◽  
Gas Diffusion Electrodes ◽  
Potential Cycling ◽  
Multiwalled Carbon ◽  
Area Loss

Durability of single-walled (SWCNT) and multiwalled carbon nanotubes (MWCNT) as Pt supports was studied using two accelerated durability tests (ADTs), potential cycling and potentiostatic treatment. ADT of gas diffusion electrodes (GDEs) was once studied during the potential cycling. Pt surface area loss with increasing the potential cycling numbers for GDE using SWCNT was shown to be higher than that for GDE using MWCNT. In addition, equilibrium concentrations of dissolved Pt species from GDEs in 1.0 M H2SO4 were found to be increased with increasing the potential cycling numbers. Both findings suggest that Pt detachment from support surface plays an important role in Pt surface loss in proton exchange membrane fuel cell electrodes. ADT of GDEs was also studied following the potentiostatic treatments up to 24 h under the following conditions: argon purged, 1.0 M H2SO4, 60°C, and a constant potential of 0.9 V. The subsequent electrochemical characterization suggests that GDE that uses MWCNT/Pt is electrochemically more stable than other GDE using SWCNT/Pt. As a result of high corrosion resistance, GDE that uses MWCNT/Pt shows lower loss of Pt surface area and oxygen reduction reaction activity when used as fuel cell catalyst. The results also showed that potential cycling accelerates the rate of surface area loss.

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