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Enhancement of direct methanol fuel cell performance through the inclusion of zirconium phosphate

Authors: Ozden, Adnan; Ercelik, Mustafa; Ozdemir, Yagmur; Devrim, Yilser; Colpan, C. Ozgur;

Enhancement of direct methanol fuel cell performance through the inclusion of zirconium phosphate

Abstract

Nafion/zirconium hydrogen phosphate (ZrP) composite membranes containing 2.5 wt.% ZrP (NZ-2.5) or 5 wt. % ZrP (NZ-5) were prepared to improve the performance of a direct methanol fuel cell (DMFC). The influence of ZrP content on the Nafion matrix is assessed through characterization techniques, such as Thermogravimetric Analysis (TGA), X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Electrochemical Impedance Spectroscopy (EIS), and water uptake measurement. Performance testing of the DMFCs based on these composite membranes as well as commercial Nafion® 115 membranes were performed using a computer aided fuel cell test station for different values of cell temperature (40°C, 60°C, 80°C, and 100°C) and methanol concentration (0.75 M, 1.00 M, and 1.50 M). Characterization studies indicated that incorporation of ZrP into polymer matrix enhanced the water uptake and proton conductivity values of Nafion membrane. The results of the performance tests showed that the Membrane Electrode Assembly (MEA) having NZ-2.5 provided the highest performance with the peak power density of 551.52 W/m2 at 100°C and 1.00 M. Then, the performances of the MEAs having the same NZ-2.5 membrane but different cathode catalysts were investigated by fabricating two different MEAs using cathode catalysts made of Pt/C-ZrP and Pt/C (HiSPEC® 9100). According to the results of these experiments, the MEA having NZ-2.5 membrane and Pt/C (HiSPEC® 9100) cathode catalyst containing 10 wt.% of ZrP exhibited the highest performance with the peak power density of 620.88 W/m2 at 100°C and 1.00 M. In addition, short-term stability tests were conducted for all the MEAs. The result of the stability tests revealed that introduction of ZrP to commercial (HiSPEC® 9100) cathode catalyst improves its stability characteristics.   This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No 661579.  Project Name: Development of a High Performance Flowing Electrolyte-Direct Methanol Fuel Cell Stack Through Modeling and Experimental Studies Acronym: FEDMFC Publication date: 2017-01-30

Country
Turkey
Subjects by Vocabulary

Microsoft Academic Graph classification: Thermogravimetric analysis Materials science Membrane electrode assembly Cathode law.invention Dielectric spectroscopy chemistry.chemical_compound Direct methanol fuel cell Membrane Zirconium phosphate chemistry law Nafion Nuclear chemistry

Keywords

Renewable Energy, Sustainability and the Environment, Energy Engineering and Power Technology, Condensed Matter Physics, Fuel Technology

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    32
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Top 10%
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Top 10%
  • citations
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    32
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Top 10%
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Top 10%
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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
32
Top 10%
Average
Top 10%
Funded by
EC| FEDMFC
Project
FEDMFC
DEVELOPMENT OF A HIGH PERFORMANCE FLOWING ELECTROLYTE-DIRECT METHANOL FUEL CELL STACK THROUGH MODELING AND EXPERIMENTAL STUDIES
  • Funder: European Commission (EC)
  • Project Code: 661579
  • Funding stream: H2020 | MSCA-IF-EF-RI
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