Effect of Mechanochemical Activation on the Catalytic Properties of Ferrites with the Spinel Structure
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: 2003,
Volume: 44,
Number: 6,
Pages: 788-792
Pages count
: 5
DOI:
10.1023/B:KICA.0000009055.02997.9c
|
| Authors |
Molchanov V.V.
1
,
Buyanov R.A.
1
,
Pavlyukhin Y.T.
2
|
| Affiliations |
| 1 |
Boreskov Institute of Catalysis, Siberian Division, Russian Academy of Sciences, Novosibirsk, 630090 Russia
|
| 2 |
Institute of Solid-State Chemistry and Mechanochemistry, Siberian Division, Russian Academy of Sciences, Novosibirsk, Russia
|
|
Funding (2)
|
1
|
Council for Grants of the President of the Russian Federation
|
НШ-2120.2003.3
|
|
2
|
Russian Foundation for Basic Research
|
00-15-97440
|
It was found experimentally that stacking defects formed in the mechanochemical activation of zinc ferrite enhanced the specific catalytic activity in the reaction of CO oxidation. The specific rate of CO oxidation was a linear function of defect concentration, which was determined using Mössbauer spectroscopy and X-ray diffraction. A conclusion was drawn that the same centers are responsible for an increase in the catalytic activity, the sorption capacity for hydrogen sulfide, and the reactivity of zinc ferrite in the interaction with hydrochloric acid. It was assumed that analogous factors caused an increase in the catalytic activity and reactivity of magnesium ferrite.