Fabrication of nano-platinum alloy electrocatalysts and their performance in a micro-direct methanol fuel cell

被引：0
作者：
Mehdi Mehrpooya
Farzad Valizadeh
Reza Askarimoghadam
Sadegh Sadeghi
Fathollah Pourfayaz
Seyed Ali Mousavi
机构：
[1] University of Tehran,Department of Renewable Energies and Environment, Faculty of New Sciences and Technologies
[2] Tarbiat Modares University,Department of Chemistry, Faculty of Science
来源：
The European Physical Journal Plus | / 135卷
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摘要：
The main target of this investigation is to propose an effective anodic electrocatalyst for micro-direct methanol fuel cell. For this purpose, five nanostructured metal alloy electrocatalysts including platinum (Pt), ruthenium (Ru) and iron (Fe) are synthesized. The single-walled and multi-walled carbon nanotubes (SW-CNT and MW-CNT) and graphene (Gr) are employed as the carbon (C) base. First, PtRuFe/SW-CNT, PtRuFe/MW-CNT, PtRuFe/Gr and PtRuFe/C catalysts with a 1:4:5 atomic ratio for Pt, Ru and Fe, respectively, and PtRu/C catalyst with a 1:1 atomic ratio for Pt and Ru, correspondingly, are prepared by the process of improved alcohol recovery. In continuation, the morphology and activity of synthesized nano-electrocatalysts are confirmed and assessed by applying the physical and electrochemical tests. According to the obtained results, PtRuFe/SW-CNT is the most suitable catalyst for methanol oxidation reaction. The outcomes of electrochemical measurements show that PtRuFe/SW-CNT electrocatalyst has the highest activity, mass activity, mass transfer and electrochemical active surface area with respect to methanol oxidation in comparison with the commercial Pt/C and the rest of the synthesized catalysts. Next, two-electrode membrane assembly is fabricated with PtRuFe/SW-CNT and commercial Pt/C electrocatalysts to evaluate the performance of them in micro-direct methanol fuel cell. Based on the obtained polarization curves, by using PtRuFe/SW-CNT instead of commercial Pt/C, the current density in zero-voltage and maximum power density enhance by 48% and 92.3%, respectively.
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  • [1] Marefati M(2019)Introducing an integrated SOFC, linear Fresnel solar field, Stirling engine and steam turbine combined cooling, heating and power process Int. J. Hydrog Energy 44 30256-30279
  • [2] Mehrpooya M(2018)Integrated power generation cycle (Kalina cycle) with auxiliary heater and PCM energy storage Energy Convers. Manag. 177 453-467
  • [3] Mousavi SA(2013)Application of solid oxide fuel cell technology for power generation—A review Renew. Sustain. Energy Rev. 20 430-442
  • [4] Mehrpooya M(2019)Evaluation of an optimal integrated design multi-fuel multi-product electrical power plant by energy and exergy analyses Energy 169 61-78
  • [5] Ghorbani B(2016)New approaches towards novel composite and multilayer membranes for intermediate temperature-polymer electrolyte fuel cells and direct methanol fuel cells J. Power Sour. 316 139-159
  • [6] Mousavi SA(2015)Highly active nitrogen-doped nanocarbon electrocatalysts for alkaline direct methanol fuel cell J. Power Sour. 281 94-102
  • [7] Choudhury A(2015)Embedding Pt nanocrystals in N-doped porous carbon/carbon nanotubes toward highly stable electrocatalysts for the oxygen reduction reaction ACS Catal. 5 2903-2909
  • [8] Chandra H(2006)A review of anode catalysis in the direct methanol fuel cell J. Power Sour. 155 95-110
  • [9] Arora A(2014)Highly active Pt-on-Au catalysts for methanol oxidation in alkaline media involving a synergistic interaction between Pt and Au Electrochim. Acta 123 309-316
  • [10] Mehrpooya M(1992)Development of alloy electrocatalysts for phosphoric acid fuel cells (PAFC) J Appl. Electrochem. 22 995-1001
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