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Showing 1 to 7 of 7 for “"hydrogen oxidation reaction"”.
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SiC and B₄C as electrocatalyst support materials for low temperature fuel cells
… economically feasible platinum metal loadings in hydrogen polymer electrolyte fuel cells (PEFCs). High surface area carbons are commonly utilised as support materials for platinum due to low cost, large surface areas and high conductivity. However, PEFCs using this technology undergo oxidation of …
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Exploring Electrochemical Properties of Ti-Containing Oxides as Anodes for SOFCs
… evaluation for their catalytic activity towards hydrogen oxidation reaction (HOR). Among the samples investigated, K1.54Mg0.77Ti7.23O16 showed the highest electrical conductivity of 2 S/cm at 800 oC in H2. In order to evaluate catalytic activity towards HOR, symmetrical cells were constructed on …
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Study of Faradaic Reactions Occurring At Polycrystalline Platinum Electrode Surfaces in Frozen, Aqueous Acidic Electrolyte
… different Tafel plot acquisition methods for the hydrogen evolution reaction (HER), oxygen evolution reaction (OER), hydrogen oxidation reaction (HOR), and oxygen reduction reaction (ORR) at polycrystalline Pt (Pt(poly)) in frozen and liquid aqueous H2SO4 electrolyte. The compared methods are: (i) …
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High-throughput synthesis and screening of binary alloys for hydrogen evolution and oxidation reactions
… ºC for 15 minutes) binary metal alloys for the hydrogen evolution reaction (HER) and the hydrogen oxidation reaction (HOR). Results are presented for the Pd-Au, Pd-Bi and Ru-Au alloy systems. Thin films of each alloy system were synthesized on a series of 10x10 array electrodes with a graded …
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Catalyst Layer Design in Polymer Membrane Fuel Cells
… catalysts, particularly for the oxygen reduction reaction (ORR) in proton exchange membrane fuel cells (PEMFCs). The most realistic method of estimating the performance of non-PGM catalysts is testing within membrane electrode assemblies (MEAs). One key issue is that non-PGM catalysts are not as …
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Investigation of contaminant effects and cathode catalysts in microfluidic fuel cells
… H2 fuel is conventionally used due to its fast oxidation kinetics, but alternate liquid or solid fuels (e.g., methanol, ethanol, NaBH4, ethylene glycol) are being studied to achieve higher energy density. Major limitations for fuel cells have included the high cost of Pt catalysts, low power …
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Σύνθεση, φυσικοχημικός και ηλεκτροχημικός χαρακτηρισμός ηλεκτροκαταλυτών για κυψελίδες καυσίμου υψηλής θερμοκρασίας pem
… αναγωγής του οξυγόνου (Oxygen Reduction Reaction, ORR) στην κάθοδο όσο και για την αντίδραση οξείδωσης του Η2 (Hydrogen Oxidation Reaction, HOR) στην άνοδο ενός PEMFC. Εξαιτίας της μεγάλης ποσότητας ακριβού μετάλλου που απαιτείται για την καθοδική αντίδραση (αντίδραση με αργή κινητική), …