Реферат: The formation, dispersion, state of components, adsorption and catalytic properties of (Pd+Pr)/C catalysts obtained by anchoring (iso-C3H7C5H4)3Pr and C3H5PdC5H5, on the surface of oxidized graphite and diamond have been studied by FTIR, TEM and XPS. According to FTIR evidence, the interaction of (iso-C3H7C5H4)3Pr with the diamond surface proceeds with the participation of carboxyl groups of the support, while subsequently-supported C3H5PdC5H5 coordinates with the anchored Pr ions. As follows from XPS and TEM data, in (Pd + Pr)/C catalysts reduced in H2 at 300 δC, Pr cations are observed together with metallic Pd particles of 20 Å size on graphite and less than 10 Å on diamond. The stability of the metallic particles towards sintering is higher on diamond than on graphite. The presence of Pr ions in (Pd + Pr)/diamond catalyst leads to the appearance of a new absorption band at 1600–1620 cm−1 in the spectrum of adsorbed CO, to an order of magnitude increase in activity in CH3OH synthesis, but a several-fold decrease in activity in benzene hydrogenation. These effects are similar to those observed earlier for (Pd + Pr)/SiO2 and Pd/Pr4O7 catalysts, and are probably due to the formation of hetero-atomic Pd-Pr active sites in these systems.

Библиографическая ссылка: Ryndin Y.A. , Nogin Y.N. , Paukshtis E.A. , Kalinkin A.V. , Chuvilin A.L. , Zverev Y.B.
Influence of Pr Ions on the Properties of Pd Supported on Ultradispersed Diamond and Graphite from Organometallic Precursors
Journal of Molecular Catalysis. 1990. V.62. N1. P.45-56. DOI: 10.1016/0304-5102(90)85238-D WOS Scopus РИНЦ CAPlusCA OpenAlex Sciact

Даты:

Поступила в редакцию:	1 авг. 1989 г.
Опубликована в печати:	15 сент. 1990 г.
Опубликована online:	2 окт. 2001 г.

Идентификаторы БД:

Web of science:	WOS:A1990EC19600005
Scopus:	2-s2.0-0025488316
РИНЦ:	31094595
Chemical Abstracts:	1990:618893
Chemical Abstracts (print):	113:218893
OpenAlex:	W1996623768
Sciact:	12848

Цитирование в БД:

БД	Цитирований
Scopus	8
OpenAlex	10

Альметрики: