2016
DOI: 10.3390/catal6060083
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Synthesis and Electrochemical Evaluation of Carbon Supported Pt-Co Bimetallic Catalysts Prepared by Electroless Deposition and Modified Charge Enhanced Dry Impregnation

Abstract: Carbon-supported bimetallic Pt-Co cathode catalysts have been previously identified as higher activity alternatives to conventional Pt/C catalysts for fuel cells. In this work, a series of Pt-Co/C catalysts were synthesized using electroless deposition (ED) of Pt on a Co/C catalyst prepared by modified charge enhanced dry impregnation. X-ray diffraction (XRD) and scanning transmission electron microscopy (STEM) characterization of the base catalyst showed highly dispersed particles. A basic ED bath containing … Show more

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Cited by 23 publications
(12 citation statements)
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“…Therefore, efforts are being made in the recent years to reduce this interaction between graphene nanosheets by introducing some other conducting material in order to use the unique properties of graphene. Although a lot of research work was carried out using the above-mentioned support materials for Pt and Pt based bi-metallic or tri-metallic nanomaterials, the research on the use of hybrid materials is limited [122,[132][133][134]. Very recently CuPt alloy nanoparticles assembled on rGO, Vulcan XC-72 (VC) and their hybrid (rGO-VC) were studied by Yilmaz et.…”
Section: Methanol Electro-oxidation Using a Hybrid Of Multiwalled Carbon Nanotubes And Reduced Graphene Oxidementioning
confidence: 99%
“…Therefore, efforts are being made in the recent years to reduce this interaction between graphene nanosheets by introducing some other conducting material in order to use the unique properties of graphene. Although a lot of research work was carried out using the above-mentioned support materials for Pt and Pt based bi-metallic or tri-metallic nanomaterials, the research on the use of hybrid materials is limited [122,[132][133][134]. Very recently CuPt alloy nanoparticles assembled on rGO, Vulcan XC-72 (VC) and their hybrid (rGO-VC) were studied by Yilmaz et.…”
Section: Methanol Electro-oxidation Using a Hybrid Of Multiwalled Carbon Nanotubes And Reduced Graphene Oxidementioning
confidence: 99%
“…Conventional methods for electrochemical data analysis generally tend to focus on a narrow range of the kinetic current domain describing the electrochemical process, such as the Tafel or the linear segments of typical polarization curves. 19 However, in most instances, the polarization curves are distorted by diffusion processes, the reverse reaction, and coupling effects of other reactions. Therefore, to analyze the experimental data from such a system, a full physicsbased model with multiple kinetic reactions is needed.…”
Section: Mathematical Modeling Of Rde Electrode Kineticsmentioning
confidence: 99%
“…Similar to particle size and distribution, the specific surface area of a powder critically determines the activity of a catalytic process . We employed a Brunauer–Emmett–Teller (BET) technique, using a Micromeritics ASAP 2020 surface-area analyzer, for surface-area analysis under N 2 atmosphere with a low relative pressure ( P / P 0 ) range 0.01–0.1 (0.01, 0.03, 0.06, 0.08, 0.10) to obtain the specific surface areas of the synthesized LSCO-1000 powder.…”
Section: Experimental Proceduresmentioning
confidence: 99%
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“…Thus, analyses and performances of materials are based on average bulk compositions instead of true metal ratios at the bimetallic particle scale. To solve this, electroless deposition (ED) has been used to selectively deposit the second metal only on the surface of a pre-existing primary metal by catalytic activation of a reducing agent on the primary metal surface [ 10 , 13 , 15 , 16 , 17 , 18 , 19 , 20 ]. This process ensures that the secondary metal is deposited only on the primary metal and not on the support [ 15 ].…”
Section: Introductionmentioning
confidence: 99%