New life of a forgotten method: Electrochemical route toward highly efficient Pt/C catalysts for low-temperature fuel cells

Thermal expansion coefficient of carbon‐supported Pt nanoparticles: In‐situ X‐ray diffraction study

“…The investigated samples were prepared using two techniques: dispergation of Pt foil by pulse alternating current in water solutions with different concentration KОН and NaOH and reduction of the metal precursor (hexachloroplatinic acid H 2 PtCl 6 6H 2 O) by ethylene glycol. In the latter case, To prepare the catalysts ethylene glycol aqueous solution was mixed with the 2% H 2 PtCl 6 solution at the different temperature 80–130 °C and colloidal solution was synthesized during 3 h. Then into the reaction system were added the carbon support and the synthesis was continued for 2 h. Temperature‐dependent synchrotron powder diffraction (SPD) measurements were carried out at the Swiss‐Norwegian Beamlines (SNBL) of ESRF (Grenoble, France) in the Debye–Scherrer geometry, using a radiation wavelength λ of 0.69114 Å and a 2‐D Pilatus2M (Dectris) detector.…”

“…All XRD patterns were fitted using the Rietveld method which enabled us to evaluate the average particle size D and unit cell parameter a . The powder diffraction pattern of Pt/C was refined in accordance with the technique described in . One of the XRD powder patterns of Pt/C sample with an average particle size of 10.8 ± 0.1 nm is displayed with the Rietveld refinement results in Fig.…”

Tin Dioxide-Based Electrode Materials for Electrochemical Applications

“…Синтез платиносодержащих катализаторов на ос-нове гибридного носителя SnO 2 -C осуществляли по методике ранее описанной нами в [14]. Содержание диоксида олова в катализаторе составило 30 %, содер-жание платины -25 %.…”

One‐step Simultaneous Synthesis of Graphene and Pt Nanoparticles under the Action of Pulsed Alternating Current and Electrochemical Performance of Pt/Graphene Catalysts

“…Recently, we have reported a simple method for the synthesis of Pt/Vulcan catalysts, which is based on the electrochemical dispersion of Pt foil electrode by pulsed alternating current (EDPAC) ,. In contradistinction to commercial Pt/C catalysts (namely, E‐TEC), the as‐prepared Pt/Vulcan catalysts demonstrated higher catalytic activity toward both the oxygen reduction reaction and ethylene glycol oxidation by factors 2 and 3.5, respectively.…”