[PDF] Top 20 Preparation of PtRu/C Electrocatalysts by Borohydride Reduction for Methanol Oxidation in Acidic and Alkaline Medium

... in methanol fuel cell showed that the power density values obtained for PtRu/C were similar in both ...and alkaline ionomers is strongly encouraged by the promising results from ... See full document

... PtAuBi/C electrocatalysts with Pt:Au:Bi atomic ratios of 50:40:10, 50:30:20 and 50:10:40 were prepared in water/2-propanol using electron beam ...of methanol and ethanol were studied by cyclic ... See full document

... PdAuBi/C electrocatalysts attributed to dissolution and redeposition processes of Bi may also have an important influence in the ...the C–C bond leading to an improvement of the ...in ... See full document

... ethanol oxidation in acidic medium, however it is a good electrocatalyst for ethanol oxidation in alkaline medium, because the final current value in alkaline ... See full document

... in C–C bond breaking and the formation of CO intermediates that poison the platinum anode catalysts ...of methanol or ...of PtRu/C electrocatalysts is strongly dependent on the ... See full document

... Recently, the use of ionic liquid (IL) thin films as reactivity-modifying coatings has received much attention, both in heterogeneous catalysis [17–22] and in electrocatalysis [23–25]. The properties of ionic liquid ... See full document

... mg -1 Au, respectively. Therefore, the peak values of the ECSA current densities for the AuNi/C300, AuNi/C400, AuNi/C500 and AuNi/C600 catalysts are 0.4、0.48、0.46 and 0.47 mA cm -2 Au, respectively. Compared to the ... See full document

... acid oxidation in comparison with pure Pt [11]. Among the electrocatalysts prepared, the PtBi was recognized as one of the most active bimetallic systems for formic acid oxidation [11-12], where ... See full document

... ments machined from PTFE, (c) PTFE gaskets, (d) turbulence promoters, (e) PTFE plates of 1 cm thickness and (f) stain- less steel plates of 1 cm thickness to hold the electrodes, plates and gaskets. The PTEF ... See full document

... Region A in the potential range from − 0.8 to − 0.5 V can be assigned solely to adsorption and desorption of the H + ion on electrocatalyst surface area. However, the adsorption and desorption peaks cannot be clearly ... See full document

... The morphologies and microstructures of the prepared products were characterized by field emission scanning electron microscopy (FE-SEM, JSM-6330F). All electrochemical measurements were carried out in a three-electrode ... See full document

... in the anode and Pt/C Basf was used in the cathode. The electrocatalyst was painted over carbon cloth in the form of a homogeneous dispersion prepared using Nafion ® solution (5 wt.%, Aldrich). After the ... See full document

... in methanol electro-oxidation reaction ...in methanol electro-oxidation, ...MWNTs-supported PtRu nanocatalyst shows the highest activity and the lowest onset potential in MOR at Ce to ... See full document

... The PtRu nanoparticles showed a good dispersion on the support and the average particle size was in range of ...for PtRu/C prepared at 2h ...catalysts, PtRu/C2 showed higher electrocatalytic ... See full document

... were taken in reaction vessel and thermostated at 35°C for thermal equilibrium. A measured volume of chloramine-T solution, which was also maintained separately at the same temperature, was rapidly poured into the ... See full document

... with respect to the bromate and zeroth order with respect to the substrate (sugars). The reaction exhibits first order dependence on the catalyst ruthenium(III) and there is inverse order on the rate of reaction. ... See full document

... obvious oxidation peak arises in the first scan, which corresponds to CO ...CO oxidation peak vanishes due to the complete oxidation of adsorbed ...CO oxidation are 0.40 V for PtRuNi networks ... See full document

... Preparation of Methanol Oxidation Electrocatalysts: Ruthenium Deposition on Carbon-Supported Platinum Nanoparticles F.. Ekctmchem., 2003,33, (l), 1-8.[r] ... See full document

... ethanol oxidation in linear sweep voltammetry experiments at room temperature is greatly enhanced, mainly at low potentials on Pt-Sn 3:1 electrocatalysts prepared by the formic acid method, however at the ... See full document

... mosphere at 200 ˚C. The alloying of Pt with Ag for each PtAg/CB was confirmed by XRD and EDX spectrome- try. The heat-treatment did not change the crystal structure of the PtAg alloys and increased their particle ... See full document