Сибирский федеральный университет

Тип публикации: статья из журнала

Год издания: 2014

Идентификатор DOI: 10.1134/S0036024414100069

Ключевые слова: nanopowders, platinum group metals, enlargement, differential scanning calorimetry, Iridium alloys, Platinum, Powder metals, Argon atmospheres, Chemisorbed oxygen, Exothermal effect, Mechanical mixtures, Nano powders, Platinum and palladiums

Аннотация: The behavior of palladium, rhodium, iridium, and platinum powders during their heating in an argon atmosphere was studied by differential scanning calorimetry (DSC). The DSC curves showed the exothermal peaks corresponding to the enlargement of the platinum group metal powders under study. Electron microscopy and XRD studies revealed that the particle size of highly disperse powders changed during the heating. Chemisorbed oxygen was removed from the powder surface above 800 K. During the heating of the mechanical mixture of highly disperse platinum and palladium powders, a solid solution formed with an exothermal effect.

Журнал: RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A

Выпуск журнала: Vol. 88, Is. 10

Номера страниц: 1732-1738

ISSN журнала: 00360244

Место издания: NEW YORK

Издатель: MAIK NAUKA/INTERPERIODICA/SPRINGER

• Borisov R.V. (Institute of Chemistry and Chemical Technology, Siberian Branch, Russian Academy of Sciences)
• Belousov O.V. (Institute of Chemistry and Chemical Technology, Siberian Branch, Russian Academy of Sciences)
• Irtyugo L.A. (Siberian Federal University)

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