Electro oxidation of Ethanol and Acetaldehyde on carbon supportedPtSnO2 for application in passive direct ethanol fuel cell

Direct ethanol fuel cells (DEFCs) are very promising as they are capable of giving high-power density at low and intermediate temperatures. It has concerned a great deal of interest as a power source in plentiful applications because ethanol is a nontoxic, safe, and high density energy carrier,which is commonly available from the reformation of numerous kinds of biomass [1,2]. Several researches have been done on the using of metal oxide to improve Pt catalytic EOR activity.PtSnO2 and PtSn alloy catalyst were synthesized and the investigation of the products demonstrated that the addition of SnO2 improved the total oxidation to CO2. SnO2 is recognized for being potentially able to provide OH-species to oxidize toughly bound intermediates such as CO [3].In the present work, an experimental study on the performance of a passive DEFC isdescribed. The PtSnO2/C (3:1) and Pt/C are used for anode and commercial Pt/C is used for anode material. A maximum power density of 1.78 mW cm-2, was obtained using a Nafion 115 membrane, 4 mg cm-2 of PtSnO2 and 3 mg cm-2 of Pt on the anode and cathode catalyst layer.

کلیدواژه ها:

DEFC ، SnO2