Several reports have been made recently of the direct formate fuel cell (DFFC) operating at high-temperature and using Pt cathode catalyst. In the present work, we demonstrate a Pt-free DFFC employing ACTA HypermecTM 4020 Fe–Co second-generation cathode catalyst operating at low-temperature. We report a maximum power density (PD) of 45 mW cm−2 at ambient temperature (20 °C), when the fuel stream was 1 M HCOOK and 2 M KOH with oxygen used at the cathode. When air was used at the cathode, the maximum PD was 35 mW cm−2. When hydroxide was removed from the fuel stream and oxygen used at the cathode, the maximum PD at 20 °C was 18 mW cm−2. This low-temperature, KOH-free operation is important to development of a practical DFFC.
Ambient Temperature Operation of a Platinum-Free Direct Formate Fuel Cell
Contributed by the Advanced Energy Systems Division of ASME for publication in the JOURNAL OF FUEL CELL SCIENCE AND TECHNOLOGY. Manuscript received May 23, 2014; final manuscript received October 23, 2014; published online December 2, 2014. Assoc. Editor: Dirk Henkensmeier.
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Nguyen, T. Q., Minami, D., Hua, C., Miller, A., Tran, K., and Haan, J. L. (February 1, 2015). "Ambient Temperature Operation of a Platinum-Free Direct Formate Fuel Cell." ASME. J. Fuel Cell Sci. Technol. February 2015; 12(1): 014501. https://doi.org/10.1115/1.4029072
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