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Technical Brief

Ambient Temperature Operation of a Platinum-Free Direct Formate Fuel Cell

[+] Author and Article Information
Tien Q. Nguyen, Daniel Minami, Chau Hua, Austin Miller, Kevin Tran

Department of Chemistry and Biochemistry,
California State University–Fullerton,
800 N. State College Blvd.,
Fullerton, CA 92831

John L. Haan

Department of Chemistry and Biochemistry,
California State University–Fullerton,
800 N. State College Blvd.,
Fullerton, CA 92831
e-mail: jhaan@fullerton.edu

1Corresponding author.

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.

J. Fuel Cell Sci. Technol 12(1), 014501 (Feb 01, 2015) (4 pages) Paper No: FC-14-1066; doi: 10.1115/1.4029072 History: Received May 23, 2014; Revised October 23, 2014; Online December 02, 2014

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.

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Figures

Grahic Jump Location
Fig. 4

Constant current experiment at 20 °C (ambient temperature) for the DFFC using 0.5 ml min−1 HCOOK and 2 M KOH as the anode fuel and 100 sccm humidified air as the cathode oxidant

Grahic Jump Location
Fig. 3

VI and PD plots for the DFFC demonstrating (a) current and (b) power densities at various temperatures using 1 ml min−1 1 M HCOOK (with no added hydroxide) as the anode fuel and 100 sccm humidified oxygen as the cathode oxidant

Grahic Jump Location
Fig. 2

VI and PD plots for the DFFC demonstrating (a) current and (b) power densities at various temperatures using 1 ml min−1 1 M HCOOK and 2 M KOH as the anode fuel and 400 sccm humidified air as the cathode oxidant

Grahic Jump Location
Fig. 1

VI and PD plots for the DFFC demonstrating (a) current and (b) power densities at various temperatures using 1 ml min−1 1 M HCOOK and 2 M KOH as the anode fuel and 100 sccm humidified oxygen as the cathode oxidant

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