Formation of Platinum Sites on Layered Double Hydroxide Type Basic Supports: III. Effect of the Mechanism of [PtCl6]2- Complex Binding to Aluminum-Magnesium Layered Double Hydroxides on the Properties of Supported Platinum in Pt/MgAlOx Catalysts
Full article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Translated
|
| Journal |
Kinetics and Catalysis
ISSN: 0023-1584
, E-ISSN: 1608-3210
|
| Output data |
Year: 2014,
Volume: 55,
Number: 6,
Pages: 786-792
Pages count
: 7
DOI:
10.1134/S0023158414060020
|
| Tags |
PROPANE DEHYDROGENATION; ALKANE DEHYDROGENATION; PT/MG(AL)O CATALYSTS; HYDROTALCITE-TYPE; INTERLAYER ANION; MIXED OXIDES; PT/MG(GA)(AL)O; HYDROGENATION; SPECTROSCOPY; STEPS |
| Authors |
Belskaya O. B.
1,2
,
Gulyaeva T. I.
1
,
Talsi V. P.
1
,
Kazakov M. O.
3
,
Nizovskii A. I.
2,3
,
Kalinkin A. V.
3
,
Bukhtiyarov V. I.
3
,
Likholobov V. A.
1,2
|
| Affiliations |
| 1 |
Institute of Hydrocarbons Processing, Siberian Branch, Russian Academy of Sciences, Omsk, 644040 Russia
|
| 2 |
Omsk State Technical University, Omsk, 644050 Russia
|
| 3 |
Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Science, Novosibirsk, 630090 Russia
|
|
Funding (1)
|
1
|
Council for Grants of the President of the Russian Federation
|
НШ-3631.2014.3
|
While synthesizing platinum catalysts supported on aluminum-magnesium oxides (Pt/MgAlO x ), we established that, in the binding of the Pt(IV) chloro complex to aluminum-magnesium layered double hydroxides (LDHs), the mechanism of the metal complex-support interaction depends on the nature of the interlayer anion of the LDH. The synthesis may yield chemically identical Pt/MgAlO x samples differing in the particle size and electronic structure of supported platinum. The higher dehydrogenating activity of the catalyst obtained by binding the [PtCl6]2− complex in the interlayer space of LDH via exchange with interlayer OH− anions is possibly due to the larger proportion of metallic platinum (Pt0) in this catalyst. In the catalyst prepared from hydrolyzed platinum complex species using LDH with CO 3 2− interlayer anions, platinum is mainly in an oxidized state similar to Pt2+.