A study of the direct dimethyl ether fuel cell using alkaline anolyte |
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Authors: | Kan Xu Hai Ying Qin Zhou Peng Li |
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Affiliation: | a Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, PR China b Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, PR China |
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Abstract: | The electrooxidation behavior of dimethyl ether (DME) dissolved in acidic, neutral or alkaline anolyte has been studied. The cyclic voltammetry measurements reveal that DME in alkaline anolyte demonstrates higher electrooxidation reactivity than that in acidic or neutral anolyte. With increasing the NaOH concentration in the anolyte, the electrooxidation reactivity of DME can be further improved. Direct dimethyl ether fuel cells (DDFCs) are assembled by using Nafion membrane as the electrolyte, Pt/C as the cathode catalyst, and Pt-Ru/C as the anode catalyst. It is found that the use of alkaline anolyte can significantly improve the performance of DDFCs. A maximum power density of 60 mW cm−2 has been achieved when operating the DDFC at 80 °C under ambient pressure. |
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Keywords: | Direct dimethyl ether fuel cell Dimethyl ether Anolyte Electrooxidation Cell performance |
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