Pt modified tungsten carbide as anode electrocatalyst for hydrogen oxidation in proton exchange membrane fuel cell: CO tolerance and stability

2015 ◽  
Vol 165 ◽  
pp. 611-619 ◽  
Author(s):  
Ayaz Hassan ◽  
Valdecir Antonio Paganin ◽  
Edson Antonio Ticianelli
Keyword(s):  
Fuel Cell ◽  
Tungsten Carbide ◽  
Proton Exchange Membrane ◽  
Hydrogen Oxidation ◽  
Proton Exchange ◽  
Co Tolerance ◽  
Exchange Membrane

Improvement of CO Tolerance of Proton Exchange Membrane Fuel Cell (PEMFC) by an Air-Bleeding Technique

2005 ◽  
Author(s):  
Chen-Chung Chung ◽  
Chiun-Hsun Chen ◽  
Hsiang-Hui Lin ◽  
Yi-Yie Yan
Keyword(s):  
Carbon Monoxide ◽  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Cell Voltage ◽  
Significant Loss ◽  
Proton Exchange ◽  
Co Poisoning ◽  
Fuel Gas ◽  
Co Tolerance ◽  
Exchange Membrane

The investigation studies improving PEMFC carbon monoxide by a periodic air dosing. The carbon monoxide in the fuel gas leads to a significant loss in power density due to CO poisoning in the anode. The method involves bleeding air into the anode fuel stream (H2-CO), which contains CO in various concentrations (20, 52.7, 100 ppm). In the transient CO poisoning test, air-bleeding is performed for four different periodic air dosing and cell voltage is fixed at 0.6 V. The result of a dosing of air during 10 sec in intervals of 10 sec is similar to that of continuous air-bleeding except 100 ppm CO. The CO tolerance of the fuel cell and cell performance recovery from poisoning can be improved by air-bleeding.

Molybdenum carbide-based electrocatalysts for CO tolerance in proton exchange membrane fuel cell anodes

2014 ◽  
Vol 142 ◽  
pp. 307-316 ◽  
Author(s):  
Ayaz Hassan ◽  
Valdecir Antonio Paganin ◽  
Alejo Carreras ◽  
Edson Antonio Ticianelli
Keyword(s):  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Molybdenum Carbide ◽  
Proton Exchange ◽  
Co Tolerance ◽  
Fuel Cell Anodes ◽  
Exchange Membrane

Improvement of CO Tolerance of Proton Exchange Membrane Fuel Cell by an Air-Bleeding Technique

2008 ◽  
Vol 5 (1) ◽  
Author(s):  
Chiun-Hsun Chen ◽  
Chen-Chung Chung ◽  
Hsiang-Hui Lin ◽  
Yi-Yie Yan
Keyword(s):  
Carbon Monoxide ◽  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Cell Voltage ◽  
Significant Loss ◽  
Proton Exchange ◽  
Co Poisoning ◽  
Fuel Gas ◽  
Co Tolerance ◽  
Exchange Membrane

This study investigates the improvement of proton exchange membrane fuel cell (PEMFC) carbon monoxide by periodic air dosing. The carbon monoxide in the fuel gas leads to a significant loss in power density due to CO poisoning in the anode. The method involves bleeding air into the anode fuel stream (H2–CO), which contains CO in various concentrations (20ppm, 52.7ppm, and 100ppm). In the transient CO poisoning test, air bleeding is performed for four different periodic air dosing and cell voltage is fixed at 0.6V. The result of a dosing of air for 10s in intervals of 10s is similar to that of continuous air bleeding except for 100ppm CO. The CO tolerance of the fuel cell and cell performance recovery from poisoning can be improved by air bleeding.

scholarly journals Radiolytic Preparation of Electrocatalysts with Pt-Co and Pt-Sn Nanoparticles for a Proton Exchange Membrane Fuel Cell

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Sang Kyum Kim ◽  
Ji Yun Park ◽  
Soon Choel Hwang ◽  
Do Kyun Lee ◽  
Sang Heon Lee ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Photoelectron Spectroscopy ◽  
Proton Exchange Membrane ◽  
Hydrogen Oxidation ◽  
Cell Polarization ◽  
Proton Exchange ◽  
Hydrogen Oxidation Reaction ◽  
X Ray ◽  
Radiation Induced ◽  
Exchange Membrane

Nanosized Pt-Sn/VC and Pt-Co/VC electrocatalysts were prepared by a one-step radiation-induced reduction (30 kGy) process using distilled water as the solvent and Vulcan XC72 as the supporting material. While the Pt-Co/VC electrodes were compared with Pt/VC (40 wt%, HiSpec 4000), in terms of their electrocatalytic activity towards the oxidation of H2, the Pt-Co/VC electrodes were evaluated in terms of their activity towards the hydrogen oxidation reaction (HOR) and compared with Pt/VC (40 wt%, HiSpec 4000), Pt-Co/VC, and Pt-Sn/VC in a single cell. Additionally, the prepared electrocatalyst samples (Pt-Co/VC and Pt-Sn/VC) were characterized by transmission electron microscopy (TEM), scanning electron microscope (SEM), thermogravimetric analysis (TGA), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), electrochemical surface area (ECSA), and fuel cell polarization performance.

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