Performance of 2-propanol in direct-oxidation fuel cells

Qi, Zhigang; Kaufman, Arthur

doi:10.1016/s0378-7753(02)00357-9

Cited by 68 publications

(60 citation statements)

References 9 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: 69%

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: 69%

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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“…Qi and Kaufman reported [127] high performance at temperatures below 80°C, particularly at low current densities, with the use of propanol, compared to methanol, was also reported when a Nafion ® PEM was used [128].…”

Section: Feasibility Of Alternative Fuels Coupled With the Applicatiomentioning

confidence: 84%

Prospects for Alkaline Anion‐Exchange Membranes in Low Temperature Fuel Cells

Varcoe¹,

2005

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This article introduces the radical approach of applying alkaline anion-exchange membranes (AAEMs) to meet the current challenges with regards to direct methanol fuel cells (DMFCs).A review of the literature is presented with regards to the testing of fuel cells with alkaline membranes (fuelled with hydrogen or methanol) and also to candidate alkaline anionexchange membranes for such an application. A brief review of the directly related patent literature is also included. Current and future research challenges are identified along with potential strategies to overcome them. Finally, the advantages and challenges with the direct electrochemical oxidation of alternative fuels are discussed, along with how the application of alkaline membranes in such fuel cells may assist in improving performance and fuel efficiency. KeywordsLow temperature, Alkaline anion-exchange membrane, Direct methanol fuel cell, Polymer electrolyte fuel cell.

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“…where ρ dry is the dry membrane density (2.075 g/cm 3 , for dry proton-form Nafion ® membrane), ρ sol is the aqueous solution density and W wet and W dry are the wet membrane density and the dry membrane density, respectively. As Fig.…”

Section: Resultsmentioning

confidence: 99%

“…For air-breathing micro DMFCs, this problem becomes more serious due to the strong adsorption of the reaction intermediates such as carbon monoxide adsorbed onto the metal nanoparticles for room-temperature fuel cells. In the exploration for methanol substitutes, some fuels have been found to show a smaller cross-over rate or a less serious effect on the cathode performance [3][4][5][6]. Among these fuels, ethanol is the most promising due to its higher energy density, nontoxicity, and availability from renewable energy sources.…”

Section: Introductionmentioning

confidence: 99%