 Enhancement of anode performance for alkaline-acid direct glycerol fuel cellsPonkarnan Sangkheaw, Supaporn Therdthianwong, Apichai Therdthianwong, Nutthapon Wongyao and Sarayut Yongprapat Renewable Energy, 2020, vol. 161, issue C, 395-407 Abstract: An alkaline-acid direct glycerol fuel cell (AA-DGFC) was proposed for a portable power generating device that requires high power density. A good design of cell components and optimum cell operating conditions are the key factors to yield high performance of fuel cells. In this work, AA-DGFC with Pt/C anode catalyst showed outstanding performance with open-circuit voltage as high as 1.72V and the peak power density of 330 mWcm−2 which is about 2.7 times higher than the performance of a typical anion exchange membrane direct glycerol fuel cell (AEDGFC). The operating conditions providing the best performance were at glycerol to NaOH mole ratio of 1:5, 1.0M glycerol concentration, an anolyte volumetric flow rate of 1mLmin-1 and cell temperature of 80 °C. For the design of the cell component, the optimum Nafion ionomer content in the anode microporous layer was 20 wt%. Among the Au-based catalysts at the anode studied Au/C, Au–Ni/C and Au–Ag/C, the Au–Ni/C outperformed the others with the power density of 142 mWcm−2. Keywords: Alkaline-acid direct glycerol fuel cell (AA-DGFC); NaOH; Anolyte flowrate; Anode catalysts; Cell performance; OCV (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:161:y:2020:i:c:p:395-407 DOI: 10.1016/j.renene.2020.07.069 Access Statistics for this article Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides More articles in Renewable Energy from Elsevier |
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