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Enhancement of anode performance for alkaline-acid direct glycerol fuel cells

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  • Sangkheaw, Ponkarnan
  • Therdthianwong, Supaporn
  • Therdthianwong, Apichai
  • Wongyao, Nutthapon
  • Yongprapat, Sarayut

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.

Suggested Citation

  • Sangkheaw, Ponkarnan & Therdthianwong, Supaporn & Therdthianwong, Apichai & Wongyao, Nutthapon & Yongprapat, Sarayut, 2020. "Enhancement of anode performance for alkaline-acid direct glycerol fuel cells," Renewable Energy, Elsevier, vol. 161(C), pages 395-407.
    • Handle: RePEc:eee:renene:v:161:y:2020:i:c:p:395-407
    DOI: 10.1016/j.renene.2020.07.069
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    References listed on IDEAS

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    1. Alipour Najmi, Ali & Rowshanzamir, Soosan & Parnian, Mohammad Javad, 2016. "Investigation of NaOH concentration effect in injected fuel on the performance of passive direct methanol alkaline fuel cell with modified cation exchange membrane," Energy, Elsevier, vol. 94(C), pages 589-599.
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    Cited by:

    1. Zhang, Xin & Rahman, Ehsanur, 2022. "Thermodynamic analysis and optimization of a hybrid power system using thermoradiative device to efficiently recover waste heat from alkaline fuel cell," Renewable Energy, Elsevier, vol. 200(C), pages 1240-1250.

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