Dual Effect of Carbon and Hydrogen on the Segregation of Pd-Ni Alloy in the Course of Trichloroethylene Decomposition | Sciact - CRIS-система Института катализа

Dual Effect of Carbon and Hydrogen on the Segregation of Pd-Ni Alloy in the Course of Trichloroethylene Decomposition Научная публикация

Журнал

Materials Letters
ISSN: 0167-577X , E-ISSN: 1873-4979

Вых. Данные

Год: 2026, Том: 406, Номер статьи : 139865, Страниц : 3 DOI: 10.1016/j.matlet.2025.139865

Ключевые слова

Decomposition of trichloroethylene; Pd-Ni alloy; Carbides; Hydrides; Segregation

Авторы

Potylitsyna Arina R. ¹ , Bauman Yury I. ¹ , Shubin Yury V. ² , Popov Anton A. ² , Shlyapin Dmitry A. ¹ , Mishakov Ilya V. ¹ , Vedyagin Aleksey A. ¹

Организации

1	Boreskov Institute of Catalysis, Ac. Lavrentieva 5, Novosibirsk 630090, Russia
2	Nikolaev Institute of Inorganic Chemistry, Ac. Lavrentieva 3, Novosibirsk 630090, Russia

Информация о финансировании (1)

Российский научный фонд

22-13-00406-П

Pd-Ni alloys were recently found to be effective for the catalytic decomposition of chlorine-substituted organic compounds with the formation of carbon nanofibers. Decomposition of trichloroethylene over a Pd0.80Ni0.20 alloy resulted in the appearance of two types of such nanofibers. It was assumed that at least two kinds of active metal nanoparticles should coexist and catalyze the growth of carbon nanofibers of two types. Therefore, the present research aimed to study the behavior of the initially homogeneous Pd0.80Ni0.20 alloy in the medium containing trichloroethylene and hydrogen. As found, the particles of type I are of 100–300 nm in diameter and enriched with Pd (~90 %). The particles of type II contain ~70 % Ni, and their size is about 10–20 nm. The driving forces of the segregation process appear to be the formation of carbides and hydrides of nickel and palladium, whose stabilities differ.

Potylitsyna A.R. , Bauman Y.I. , Shubin Y.V. , Popov A.A. , Shlyapin D.A. , Mishakov I.V. , Vedyagin A.A.
Dual Effect of Carbon and Hydrogen on the Segregation of Pd-Ni Alloy in the Course of Trichloroethylene Decomposition
Materials Letters. 2026. V.406. 139865 :1-3. DOI: 10.1016/j.matlet.2025.139865

Поступила в редакцию:	3 окт. 2025 г.
Принята к публикации:	24 нояб. 2025 г.
Опубликована online:	25 нояб. 2025 г.
Опубликована в печати:	1 мар. 2026 г.

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