State of transition metals and their distribution in the surface layers of crystals of high-silica zeolites. II. XPS study of the interaction of Rh-containing zeolites with bicyclo(2. 2. 1)hepta-2,5-diene and hydrogen

Journal Article · Fri Apr 01 00:00:00 EST 1988 · Kinet. Catal. (Engl. Transl.); (United States)

OSTI ID:5776425

Shpiro, E S; Tkachenko, O P; Azbel', B I; Gol'dshleger, N F; Isakov, Ya I; Khidekel', M L; Minachev, Kh M

The authors have shown that the state of rhodium and its surface concentration in NaTsVM zeolites depend on the preparation conditions (ion exchange, soaking) and pretreatment. In cation-exchanged samples, the Rh(III) is uniformly distributed over the zeolite crystal and the Rh(O) formed upon reduction has high dispersion. The reaction of Rh/NaTsVM with H/sub 2/ or norbornadiene (NBD) under mild conditions (130-150/degree/C) lead to stabilization of a significant part of the rhodium in the form of Rh(I), and apparently a complex is formed of the type NBD-Rh(I)-O/sub zeolite/.

• Research Organization: N.D. Zelinskii Institute of Organic Chemistry, Moscow (USSR)
• OSTI ID: 5776425
• Journal Information: Kinet. Catal. (Engl. Transl.); (United States), Vol. 28:5; Other Information: Translated from Kinet. Catal.; 28, No. 5, 1248-1253 (Sep-Oct 1987)
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CATALYSTS
CHEMICAL PREPARATION
RHODIUM COMPOUNDS
X-RAY SPECTRA
ZEOLITES
CATALYTIC EFFECTS
HYDROGEN
ION EXCHANGE
LINE WIDTHS
NORBORNADIENE
OXIDATION
PHOTOELECTRON SPECTROSCOPY
REDUCTION
SPATIAL DISTRIBUTION
VALENCE
ALKENES
CHEMICAL REACTIONS
CYCLOALKENES
DISTRIBUTION
ELECTRON SPECTROSCOPY
ELEMENTS
HYDROCARBONS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
MINERALS
NONMETALS
ORGANIC COMPOUNDS
REFRACTORY METAL COMPOUNDS
SPECTRA
SPECTROSCOPY
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS
400201* - Chemical & Physicochemical Properties