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Showing 1 to 7 of 7 for “"Tafel Analysis"”.
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Electrodeposition and characterization of metals and metal oxides for energy conversion and storage
… to be a more active catalyst than CoOOH based on Tafel analysis. However, when the observed current densities are corrected for the measured electrochemically active surface area, the linear region of the two Tafel plots fell on the same line--suggesting the active species, likely Co(IV), for the …
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Electrochemical Deactivation of Nitrate, Arsenate, and Trichloroethylene
… conditions relevant to groundwater treatment. Tafel analysis and electrochemical impedance spectroscopy were used to probe the surface reactions. Batch experiments were used to study the reaction rate of with freely corroding and cathodically protected iron wires. The removal kinetics for the …
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Fabrication of PtNi and PtV near-surface alloys as improved catalysts for proton exchange membrane hydrogen fuel cells
… to fabricate the NSA structure. Surface profile analysis was carried out using profilometry and light microscopy. These techniques showed that surfaces were not always of a 100% mirror finish and that deposited coatings were not stable and were prone to peeling especially with coatings of greater …
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An Electrochemical Investigation into the Corrosion Protection Properties of Coatings for the Active Metal Copper
… of cyclic voltammetry, polarisation curves, Tafel analysis, open-circuit potential measurements and electrochemical impedance spectroscopy. Polypyrrole films were successfully deposited at copper from a 0.10 mol dm-3 oxalate solution at a pH of 8.0 and a 0.10 mol dm-3 tartrate solution at a …
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Design and fabrication of non-noble-metal electrocatalysts for oxygen reduction reactions.
… with synergistically enhanced activities. Tafel analysis confirms that the good performance was brought from its unique structural advantages. (3) To further enhance the catalytic activity of the above materials with ideal hierarchical structures for ORR, we have introduced high active Fe-N …
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Ammonia Recovery from Digester Centrate with Electrochemical Membrane Systems: Mechanism, Performance, and Application
… achieved under 1.25 mA cm-2. A preliminary cost analysis examined the relationship between acid price and dosage and estimated the operating cost of $0.58~0.83 kg-1N; simultaneously recovered phosphorus would further increase the benefit of this system. This work further studied the kinetics in …
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Study of Faradaic Reactions Occurring At Polycrystalline Platinum Electrode Surfaces in Frozen, Aqueous Acidic Electrolyte
… new results on the comparison of 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 …