Fuel cell road traction: an option for a clean global society

Patil, Pandit G.; Zegers, P.

doi:10.1016/0378-7753(93)01810-5

Cited by 9 publications

(3 citation statements)

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“…Solid polymer fuel cells (SPFCs) are promising power sources, especially for the electric vehicle applications, because of their high power densities and rapid cold startup. [1][2][3][4] The direct evaluation of various catalysts for their activity in the gas diffusion electrodes (GDEs) of SPFCs is, however, time consuming and expensive: hence it would be useful to devise a simple half-cell technique which could mimic the complete solid polymer fuel cell. Our group recently carried out a correlative study between a simple rotating disk electrode in sulfuric acid (half-cell) and a complete SPFC for the oxygen reduction reaction on the carbon-supported cobalt catalysts (obtained from pyrolyzed cobalt phthalocyanine).…”

Section: Introductionmentioning

confidence: 99%

Crystallite Size Effects of Carbon‐Supported Platinum on Oxygen Reduction in Liquid Acids

TamizhMani

Dodelet

Guay

1996

J. Electrochem. Soc.

113

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Pt/C catalysts with two different Pt crystallite sizes [as-received (20 weight percent (w/o) Pt/C powder from E-TEK) and heat-treated (900°C in inert atmosphere)] were analyzed for the reduction of oxygen in half-cells using rotating disk electrodes. Measurements in HF (1.17 M) show that the specific activity of the catalysts increases with the Pt crystallite size. In contrast, measurements in H2S04 (1.17 M) indicate that the specific activity is nearly independent of the Pt crystallite size. One of the reasons for the difference in behavior observed between these acids is the difference in specific adsorption of anions on the Pt sites from H2504 (adsorbing) and HF (nonadsorbing) solutions. This study indicates that both the oxygen reduction reaction and anion adsorption on the Pt sites are crystallite-size sensitive in H2504 solution.In solid polymer fuel cells (SPFCs), the anions are anchored on the backbone of the polymer matrix, and hence only a minimal anion adsorption is expected on the Pt sites of gas diffusion electrodes. From results of the present study, it is believed that the Pt/membrane interface in SPFCs could be better mimicked by the Pt/HF interface rather than the Pt/H2S04 interface.

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Section: Introductionmentioning

confidence: 99%

Crystallite Size Effects of Carbon‐Supported Platinum on Oxygen Reduction in Liquid Acids

TamizhMani

Dodelet

Guay

1996

J. Electrochem. Soc.

113

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“…Fuel cells1–4 are systems capable of continuously generating electricity from a fuel, their performance being considerably better than the combustion systems presently in use. Fuel cells are expected to play, both in the short and in the long term, an important part in sustainable energy supply, as they allow for considerable energy savings, as well as for diversifying energy sources.…”

Section: Introductionmentioning

confidence: 99%

Conducting systems based on styrene–butadiene‐block–copolymers: Microstructural characterization

Acosta¹,

González²,

Río³

et al. 2002

J of Applied Polymer Sci

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This work reports on the preparation and structural and electrical characterization of composites consisting of HSBR, polypropylene (PP), and carbon black (CB) blends, comparing the data obtained from more or less rich PP samples. Structural analysis provided evidence of the plasticizing or crosslinked effects on the properties of composites, when CB is present in the initial system, as well as of the excellent conducting properties of CB composites.

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“…Fuel cells1–4 are devices capable of converting the chemical energy stored in a fuel, generally in the form of hydrogen, into electric energy through electrochemical reactions. The performance level achieved by these devices may surpass 50%.…”

Section: Introductionmentioning

confidence: 99%

Elastomeric conducting systems based on ethylene-propylene-norbornene composites

Acosta

González

Río

et al. 2001

J. Appl. Polym. Sci.

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This work reports the preparation and structural and electrical characterizations of composites consisting of ethylene–propylene–norbornene, polypropylene, and carbon black (CB) blends, comparing the data obtained from crosslinked and noncrosslinked samples. Structural analysis provided evidence of the reinforcing effect of CB on the properties when present in the initial system, as well as of the excellent conducting properties of CB composites. This, together with their mechanical properties and their extraordinary processing ease, makes them suited as bipolar plates in fuel cells based on polymeric electrolyte. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 79: 2136–2145, 2001

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Fuel cell road traction: an option for a clean global society

Cited by 9 publications

References 0 publications

Crystallite Size Effects of Carbon‐Supported Platinum on Oxygen Reduction in Liquid Acids

Crystallite Size Effects of Carbon‐Supported Platinum on Oxygen Reduction in Liquid Acids

Conducting systems based on styrene–butadiene‐block–copolymers: Microstructural characterization

Elastomeric conducting systems based on ethylene-propylene-norbornene composites

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