Papers by Author: Lj.M. Gajić-Krstajić

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Authors: T.Lj. Trišović, Lj.M. Gajić-Krstajić, N. Krstajić
Authors: Lj.M. Gajić-Krstajić, T.Lj. Trišović, B. Babić, Lj.M. Vračar
Abstract: The kinetics of oxygen reduction (ORR) on carbon cryogel supported Pt nanoparticles (Pt / C) in acid solution was studied using the rotating disk electrode technique. This electrocatalyst was prepared by a modified polyol synthesis method and characterized by transmission electron microscopies. The kinetics of ORR shows a significant enhancement at Pt nanoparticle surfaces as compared with the same reaction on polycrystalline Pt surface. The four-electron reduction, with a first-charge transfer-rate determining step, has been found to be operative. However, the specific activity of the Pt / C is similar to that of the polycrystalline Pt electrocatalyst.
Authors: Lj.M. Gajić-Krstajić, T.Lj. Trišović, B. Jović, N. Krstajić
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