danДоклады Национальной академии наук БеларусиDoklady of the National Academy of Sciences of Belarus1561-83232524-2431The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"dan-410Research ArticleТЕХНИЧЕСКИЕ НАУКИTECHNICAL SCIENCESСОСТАВ И СВОЙСТВА ПОВЕРХНОСТНЫХ СЛОЕВ, ФОРМИРУЕМЫХ ИОННО-АССИСТИРУЕМЫМ ОСАЖДЕНИЕМ КАТАЛИТИЧЕСКИХ МЕТАЛЛОВ ИЗ ПЛАЗМЫ ВАКУУМНОГО ДУГОВОГО РАЗРЯДА НА УГЛЕРОДНЫЕ ПОДЛОЖКИCOMPOSITION AND PROPERTIES OF SURFACE LAYERS PREPARED BY ION BEAM-ASSISTED DEPOSITION OF CATALYTIC METALS FROM VACUUM ARC-DISCHARGE PLASMA ON CARBON SUBSTRATESПоплавскийВ. В.PoplavskyV. V.

канд. физ.-мат. наук, доцент

Ph. D. (Physics and Mathematics), Assistant Professor

v.poplavsky@belstu.byКомаровФ. Ф.KomarovF. F.

член-корреспондент, д-р физ.-мат. наук, профессор, заведующий кафедрой

Corresponding Member, D. Sc. (Physics and Mathematics), Professor, Head of the Department

komarovF@bsu.byМатысВ. Г.MatysV. G.

канд. хим. наук, доцент

Ph. D. (Chemistry), Assistant Professor

vmatys@belstu.byБелорусский государственный технологический университет, МинскBelarusian State Technological University, MinskБелорусский государственный университет, МинскBelarusian State University, Minsk2017290420176128491Copyright © Поплавский В.В., Комаров Ф.Ф., Матыс В.Г., 20172017Поплавский В.В., Комаров Ф.Ф., Матыс В.Г.Poplavsky V.V., Komarov F.F., Matys V.G.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://doklady.belnauka.by/jour/article/view/410

Поверхностные слои сформированы ионноассистируемым осаждением (IBAD) платины и редкоземельных металлов (Ce, Yb) на носитель Toray Carbon Fiber Paper TGP-H-060 Т с целью получения электрокатализаторов для топливных элементов прямого окисления метанола и этанола с полимерным мембранным электролитом. Формирование слоев проведено в режиме IBAD, при котором осаждение металла и перемешивание осаждаемого слоя с атомами поверхности подложки ускоренными (U = 10 кВ) ионами того же металла осуществляются соответственно из нейтральной фракции пара и плазмы вакуумного дугового разряда импульсного электродугового ионного источника. Исследование морфологии и состава слоев проведено методами сканирующей электронной микроскопии и электронно-зондового микроанализа, рентгеновского флуоресцентного анализа и спектрометрии резерфордовского обратного рассеяния. Свойства электрокатализаторов исследовались методом циклической вольтамперометрии. Получаемые электрокатализаторы проявляют активность в процессах окисления метанола и этанола.

 

Surface layers were prepared by ion beam-assisted deposition (IBAD) of platinum and rare earth metals (Ce, Yb) on the carbon-based Toray Carbon Fiber Paper TGP-H-060 T catalyst support in effort to produce electrocatalysts for direct methanol and ethanol oxidation fuel cells (DMFC, DEFC) with polymer electrolyte membrane. The layer formation in the IBAD mode, by means of the metal deposition and the mixing of a precipitating layer with the substrate by accelerated (U = 10 kV) ions of the same metal, was carried out. In this process, a neutral fraction of metal vapor and ionized plasma of vacuum pulsed electric arc was used. The study of morphology and composition of the layers was performed by scanning electron microscopy and electron probe microanalysis, X-ray fluorescence analysis and Rutherford backscattering spectrometry. Properties of the prepared electrocatalysts were investigated by cyclic voltammetry. It was established that the prepared electrocatalysts show their activity in the processes of electrochemical methanol and ethanol oxidation.

 

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The authors declare that there are no conflicts of interest present.