Electrocatalysis of CO Tolerance in H2/CO Mixtures by
                                                Carbon Supported PtMo in a Proton Exchange Membrane
                                                Fuel Cell

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.

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Evaluating the impact of enhanced anode CO tolerance on performance of proton-exchange-membrane fuel cell systems fueled by liquid hydrocarbons

Journal of Power Sources ◽

10.1016/j.jpowsour.2009.09.066 ◽

2010 ◽

Vol 195 (7) ◽

pp. 1926-1935 ◽

Cited By ~ 5

Author(s):

Jenny E. Hu ◽

Joshua B. Pearlman ◽

Gregory S. Jackson ◽

Christopher J. Tesluk

Keyword(s):

Fuel Cell ◽

Proton Exchange Membrane ◽

Proton Exchange ◽

Liquid Hydrocarbons ◽

Cell Systems ◽

Co Tolerance ◽

Exchange Membrane ◽

The Impact

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

Electrochimica Acta ◽

10.1016/j.electacta.2014.07.142 ◽

2014 ◽

Vol 142 ◽

pp. 307-316 ◽

Cited By ~ 17

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

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

Journal of Fuel Cell Science and Technology ◽

10.1115/1.2784278 ◽

2008 ◽

Vol 5 (1) ◽

Cited By ~ 13

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.

Download Full-text