Journal
JOURNAL OF POWER SOURCES
Volume 287, Issue -, Pages 75-80Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2015.04.014
Keywords
Fuel cell; Direct formate fuel cell; Direct formate-peroxide fuel cell; Formate oxidation reaction; Integrated foam electrode; Anion-exchange membrane
Funding
- National Natural Science Foundation of China [U1261112]
- Chinese Ministry of Education [113055A]
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We report the high-performance direct formate-peroxide fuel cells (DFPFCs) that consist of a cation-exchange membrane sandwiched between an alkaline formate anode and an acid peroxide cathode. Much attention has been paid to investigate the effects of different composite parameters and operating parameters, including catalyst loadings at both anode and cathode electrodes, operating temperatures, as well as the concentrations of both formate and electrolyte solutions. It is demonstrated that the optimization of both the electrode composition (anode 2.0 mg(Pd) cm(-2), cathode 2.0 mg(Pt) cm(-2)) and the solution concentration (1.0 M HCOONa-3.0 M NaOH) enables the DFPFC to yield a peak power density as high as 591 mW cm(-2) at 60 degrees C, which is about one times higher than that of state-of-the-art anion-exchange membrane direct formate fuel cells. (C) 2015 Elsevier B.V. All rights reserved.
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