A direct 2-propanol polymer electrolyte fuel cell

Cao, Dianxue; Bergens, Steven H.

doi:10.1016/s0378-7753(03)00613-x

Cited by 101 publications

(72 citation statements)

References 18 publications

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“…For primary fuels the OCV of the PtRu catalyst cell is 0.53 V whereas for isopropanol a significantly higher value (0.85 V) is obtained -which has been reported previously [201,202] -and is due to efficient deprotonation of isopropanol to acetone at low potential (observed with FTIR in Publication II and electrochemical experiments in Publication V). Nevertheless, as can be seen in the polarization curve in Publication V isopropanol oxidation declines rapidly at 0.65 V (Figure 37B) because the reaction from isopropanol to acetone is fast and thus diffusion limitations at that potential are faced, however, this behavior can be seen as a constant decrease in chronoamperometric current in Figure 37D.…”

Section: Alcohol Oxidation In Dafcssupporting

confidence: 71%

The correlation of electrochemical and fuel cell results for alcohol oxidation in acidic and alkaline media

Santasalo-Aarnio

Tuomi

Jalkanen

et al. 2013

Electrochimica Acta

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Section: Alcohol Oxidation In Dafcssupporting

confidence: 71%

The correlation of electrochemical and fuel cell results for alcohol oxidation in acidic and alkaline media

Santasalo-Aarnio

Tuomi

Jalkanen

et al. 2013

Electrochimica Acta

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“…Direct 2-propanol fuel cells have attracted a deal of attention as 2-propanol is the smallest secondary alcohol, less toxic than methanol, and its electrochemical oxidation is of interest due to its particular molecular structure [6]. The direct alcohol fuel cells using 2-propanol as fuel show much higher performance than direct methanol fuel cells and a much lower crossover current [7][8][9]. Also, DAFCs are of interest due to their high efficiency, low polluting emissions, a potentially renewable fuel source, and convenient refueling.…”

Section: Introductionmentioning

confidence: 99%

Electrocatalytic Oxidation of 1-Propanol and 2-Propanol on Electro-active Films Derived from NiII-(N,N′-bis(2-Hydroxy, 3-Methoxy Benzaldehyde)-1,2-Propandiimine) Modified Glassy Carbon Electrode

et al. 2011

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Complexes of Ni II -(N,N′-bis(2-hydroxy, 3-methoxy benzaldehyde)-1,2-propandiimine) can be electropolymerized onto GC electrode in an alkaline solution to give an electro-active film strongly adhered on the electrode surface. In alkaline solution, this poly-(Ni II {sal-1,2-pn(3-OMe) 2 })/GC film shows the typical voltammetric response of a surface-immobilized redox couple, as can be anticipated for the Ni 2+ /Ni 3+ transitions into the film. In addition, the film exhibits a potent and persistent electro-catalytic activity towards the oxidation of 1-and 2-propanol. In CV studies, in the presence of these alcohols, poly-(Ni II {sal-1,2-pn(3-OMe) 2 })/GC electrode shows a new oxidation peak for the alcohols at a potential much more positive than the oxidation peak potential of Ni II species. Based on a proposed mechanism, Ni III sites act as active surface for the direct electro-oxidation of alcohols. The corresponding rate laws have been derived, and the kinetic parameters have been obtained. Also, an amperometric procedure has been successfully applied to the determination of the alcohols.

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“…Ethanol is an alternative choice as a fuel due to its non-toxicity and availability from biomass resources [3,9,10]. Also the recent studies have focused on 2-propanol as an alcohol's fuel because it shows a lower overpotential and higher performance than methanol [8,11,12]. Alcohols with more than two carbon atoms have several isomers and special features of non-CO adsorption [12].…”

Section: Introductionmentioning

confidence: 99%

Electro-Oxidation of Ethanol and Propanol at Pt and Ti Modified Nanoparticle Substrates for Direct Alcohol Fuel Cells (DAFCs)

Hassan¹

2009

TOELECJ

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Modified Pt and Ti substrates were prepared by electrodeposition of nanocrystallite Pt and Pt x -Sn y catalysts for electro-oxidation of ethanol, 1-propanol and 2-propanol. The chemical composition, the phase structure and the surface morphology of the Pt and Pt x -Sn y electrodeposits were studied by X-ray diffractometer (XRD), energy dispersive X-ray spectroscopy (EDX) and scanning electron microscope (SEM). Their electro-catalytic activities were studied in 0.5 M H 2 SO 4 by cyclic votlammetry and chronoamperometric techniques. It was found that, the nature of the substrate significantly affects the performance of the prepared catalyst towards electro-oxidation of different alcohols. Accordingly, the modified Pt substrates display enhanced catalytic activity and a higher stability towards alcohols electro-oxidation compared to the modified Ti substrates. Steady state Tafel plots experiments showed smoother and higher rate of alcohols oxidation on the modified Pt substrates than that on the modified Ti. High anodic Tafel slopes >200 for 1-propanol and 2-propanol electro-oxidation were obtained on Ti modified substrates indicating the complexity of the oxidation reaction on such electrodes.

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A direct 2-propanol polymer electrolyte fuel cell

Cited by 101 publications

References 18 publications

The correlation of electrochemical and fuel cell results for alcohol oxidation in acidic and alkaline media

The correlation of electrochemical and fuel cell results for alcohol oxidation in acidic and alkaline media

Electrocatalytic Oxidation of 1-Propanol and 2-Propanol on Electro-active Films Derived from NiII-(N,N′-bis(2-Hydroxy, 3-Methoxy Benzaldehyde)-1,2-Propandiimine) Modified Glassy Carbon Electrode

Electro-Oxidation of Ethanol and Propanol at Pt and Ti Modified Nanoparticle Substrates for Direct Alcohol Fuel Cells (DAFCs)

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