The Attractiveness of the Ternary Rh-Pd-Pt Alloys for CO Oxidation Process | Sciact - CRIS-система Института катализа

The Attractiveness of the Ternary Rh-Pd-Pt Alloys for CO Oxidation Process Научная публикация

Журнал

Processes
ISSN: 2227-9717

Вых. Данные

Год: 2020, Том: 8, Номер: 8, Номер статьи : 928, Страниц : 20 DOI: 10.3390/pr8080928

Ключевые слова

ternary alloys; synthesis; single precursor; thermolysis; phase diagram; catalytic activity

Авторы

Vedyagin Aleksey A. ¹ , Shubin Yury V. ² , Kenzhin Roman M. ¹ , Plyusnin Pavel E. ² , Stoyanovskii Vladimir O. ¹

Организации

1	Boreskov Institute of Catalysis SB RAS, Department of Materials Science and Functional Materials
2	Nikolaev Institute of Inorganic Chemistry SB RAS, Department of Chemistry of Coordination, Cluster and Supramolecular Compounds

Информация о финансировании (1)

Российский научный фонд

16-13-10192

Ternary alloys of platinum group metals attract a growing interest due to their unique catalytic properties. The present research is aimed to synthesize a series of Rh-Pd-Pt alloys with varied ratios of metals using a single-source precursor approach. Rhodium and palladium are partly miscible metals, while each of these metals is unlimitedly miscible with platinum. Thermolysis of complex salts used as a precursor results in the formation of metastable systems. The 3D nanostructure alloys are being formed after the complete decomposition of the single-source precursor. High-resolution transmission electron microscopic studies have shown that the nanoalloys are composed of interconnected polycrystalline ligaments with a mean diameter of 50 nm. The single-phase composition is confirmed by an X-ray diffraction analysis. The ratio of metals plays an important role in determining the catalytic activity of alumina-supported alloys and their thermal stability. According to UV-vis spectroscopy data, the higher palladium portion corresponds to worse dispersion of initially prepared, fresh catalysts. Treatment of the catalysts under prompt thermal aging conditions (up to 800 °C) causes redispersion of palladium-rich alloyed nanoparticles, thus leading to improved catalytic activity and thermal stability.

Vedyagin A.A. , Shubin Y.V. , Kenzhin R.M. , Plyusnin P.E. , Stoyanovskii V.O.
The Attractiveness of the Ternary Rh-Pd-Pt Alloys for CO Oxidation Process

Processes. 2020. V.8. N8. 928 :1-20. DOI: 10.3390/pr8080928 WOS Scopus РИНЦ CAPlus OpenAlex

Полный текст от издателя

Поступила в редакцию:	8 июл. 2020 г.
Принята к публикации:	30 июл. 2020 г.
Опубликована в печати:	2 авг. 2020 г.
Опубликована online:	2 авг. 2020 г.

Web of science:	WOS:000564773200001
Scopus:	2-s2.0-85089776108
РИНЦ:	45342147
Chemical Abstracts:	2020:2554692
OpenAlex:	W3046596161

БД	Цитирований
Scopus	12
Web of science	12
РИНЦ	14
OpenAlex	12