Grigoriev, Sergey A.Bessarabov, Dmitri G.Fateev, Vladimir N.Lutikova, Elena K.Grigoriev, Alexander S.2016-10-112016-10-112016Grigoriev, S.A. et al. 2016. CNF-supported platinum electrocatalysts synthesized using plasma-assisted sputtering in pulse conditions for the application in a high-temperature PEM fuel cell. International journal of electrochemical science, 11(3):2085-2096. [http://www.electrochemsci.org/]1452-3981http://hdl.handle.net/10394/19024http://www.electrochemsci.org/papers/vol11/110302085.pdfNanostructured platinum catalysts for a high-temperature proton-exchange membrane (PEM) fuel cell based on polybenzimidazole (PBI) doped by H3PO4 were synthesized by magnetron-ion sputtering of platinum on carbon nano-fibers (CNF) in an impulse mode. The resulting catalysts were studied by transmission electron microscopy and X-ray diffraction. These catalysts with platinum particles size from 4 to 6 nm uniformly distributed over the CNF surface exhibit high efficiency. The electrodes based on the synthesized electrocatalysts were tested in a liquid electrolyte and as a component of PBI-based fuel cell. The fuel cell had power density ca. 300 mW/cm2. Degradation tests showed that carbon carrier oxidation mainly determined the catalyst stability and stability of CNF was higher in comparison with Vulcan XC-72enPEM fuel cellpolybenzimidazoleelectrocatalysismagnetron-ion sputteringcarbon nano-fibersArticle