Electrochemical characterization of the surface and methanol electrooxidation on Pt–Rh–Pd ternary alloys

Soszko, Michał; Łukaszewski, M.; Mianowska, Z.; Czerwiński, A.

doi:10.1016/j.jpowsour.2010.12.046

Cited by 27 publications

(14 citation statements)

References 51 publications

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“…The first article illustrating such a device was published at the end of the 1830s [1], and the interest in this field has been growing since the 1950s [2]. Among various types of the low-temperature fuel cells, proton exchange membrane fuel cells (PEMFCs) are attractive power sources for portable, automotive and stationary applications due to their high energy density, high efficiency and low operating temperature.…”

Section: Introductionmentioning

confidence: 99%

Recent Development of Pd-Based Electrocatalysts for Proton Exchange Membrane Fuel Cells

2015

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This review selectively summarizes the latest developments in the Pd-based cataysts for low temperature proton exchange membrane fuel cells, especially in the application of formic acid oxidation, alcohol oxidation and oxygen reduction reaction. The advantages and shortcomings of the Pd-based catalysts for electrocatalysis are analyzed. The influence of the structure and morphology of the Pd materials on the performance of the Pd-based catalysts were described. Finally, the perspectives of future trends on Pd-based catalysts for different applications were considered.

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Section: Introductionmentioning

confidence: 99%

Recent Development of Pd-Based Electrocatalysts for Proton Exchange Membrane Fuel Cells

2015

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“…Many organic compounds have been used as fuels for polymer electrolyte membrane fuel cells, but usually methanol [3,4] and, more recently, ethanol are considered [5][6][7][8][9][10]. In the latter case, the complete oxidation of ethanol produces as many as 12 electrons, but relative to methanol, the oxidation process is a fairly complex reaction because it requires dissociation of the C-C bond.…”

Section: Introductionmentioning

confidence: 99%

“…Previous studies indicate that the presence of a second transition metal such as Ru, Rh, Ir, Sn, Pd, Zr, Mo, W, or Pb [4,9,10,[16][17][18][19][20][21][22] into Pt led to the electrooxidation of ethanol at lower potentials than on pure platinum. The sizeable enhancement was observed in the case of carbon-supported or intentionally decorated Pt-Sn catalysts [9,10,[23][24][25], but in all cases, the main products formed were still acetic acid and acetaldehyde [26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Enhancement of activity of PtRh nanoparticles towards oxidation of ethanol through modification with molybdenum oxide or tungsten oxide

Miecznikowski

2012

J Solid State Electrochem

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Electrocatalytic systems utilizing carbon (Vulcan)-supported PtRh nanoparticles (PtRh/Vulcan) admixed with either molybdenum oxide or tungsten oxide were tested and compared during electrooxidation of ethanol. The systems' performance was diagnosed using electrochemical techniques such as voltammetry and chronoamperometry. The proposed electrocatalytic materials were also characterized with X-ray diffraction (XRD), transmission and scanning electron microscopies (TEM and SEM), as well as SEM-coupled energy dispersive X-ray spectroscopy (SEM-EDX). For both systems containing molybdenum and tungsten oxides, enhancements in catalytic activities (relative to the behavior observed at bare PtRh/Vulcan nanoparticles) were found during ethanol electrooxidation at room temperature (22°C). Further, it was from chronoamperometric current (density)-time responses that anodic electrocatalytic currents measured at 0.3 V (vs. RHE) were more than 20% higher in the case of the MoO 3 -containing PtRh/Vulcan system relative to that utilizing WO 3 . The diagnostic "CO-stripping" experiments were consistent with the view that addition of molybdenum oxide or tungsten oxide to PtRh/Vulcan tended to shift potential for the oxidation of inhibiting CO-adsorbate ca. 80 or 40 mV towards less negative values in comparison to the analogous but oxide-free system. The fact that carbon (Vulcan)-supported PtRu nanoparticles exhibited higher electrocatalytic reactivity observed phenomena may be attributed to specific interactions between noble metal centers and the oxides in addition to chemical reactivity of metal oxo groups in the vicinity of PtRh/ Vulcan at the electrocatalytic interface.

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“…At the end of 1830s, first article about FC device was illustrated and growing up since 1950s. 14,15 The common fuel of FC is hydrogen whilst alcohol, such as methanol and ethanol, can be an alternative. FC technology is an attractive issue to increase the hydrogen production, thus hydrogen and alcohol economics will grow up rapidly.…”

Section: Introductionmentioning

confidence: 99%

Recent advances on Zeolite modification for direct alcohol fuel cells (DAFCs)

Makertihartha¹,

Zunita²,

Rizki³

et al. 2017

AIP Conference Proceedings

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Abstract. The increase of energy demand and global warming issues has driven studies of alternative energy sources. The polymer electrolyte membrane fuel cell (PEMFC) can be an alternative energy source by (partially) replacing the use of fossil fuel which is in line with the green technology concept. However, the usage of hydrogen as a fuel has several disadvantages mainly transportation and storage related to its safety aspects. Recently, alcohol has gained attention as an energy source for fuel cell application, namely direct alcohol fuel cell (DAFC). Among alcohols, high-mass energy density methanol and ethanol are widely used as direct methanol fuel cell (DMFC) and direct ethanol fuel cell (DEFC), respectively. Currently, the performance of DMFC is still rudimentary. Furthermore, the use of ethanol gives some additional privileges such as non-toxic property, renewable, ease of production in great quantity by the fermentation of sugar-containing raw materials. Direct alcohol fuel cell (DAFC) still has weakness in the low proton conductivity and high alcohol crossover. Therefore, to increase the performance of DAFC, modification using zeolite has been performed to improve proton conductivity and decrease alcohol crossover. Zeolite also has high thermal resistance properties, thereby increasing DAFC performance. This paper will discuss briefly about modification of catalyst and membrane for DAFC using zeolite. Zeolite modification effect on fuel cell performance especially proton conductivity and alcohol crossover will be presented in detail.

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Electrochemical characterization of the surface and methanol electrooxidation on Pt–Rh–Pd ternary alloys

Cited by 27 publications

References 51 publications

Recent Development of Pd-Based Electrocatalysts for Proton Exchange Membrane Fuel Cells

Recent Development of Pd-Based Electrocatalysts for Proton Exchange Membrane Fuel Cells

Enhancement of activity of PtRh nanoparticles towards oxidation of ethanol through modification with molybdenum oxide or tungsten oxide

Recent advances on Zeolite modification for direct alcohol fuel cells (DAFCs)

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