 |
Study of the Catalytic Activity of Calcined Ni/Mg/Al (Mn) Hydrotalcites for N2O Decomposition
Obalová, L., Valášková, M., Kovanda, F., Lacný, Z. and Kolinová, K. Study of the Catalytic Activity of Calcined Ni/Mg/Al (Mn) Hydrotalcites for N2O Decomposition Chemical Papers, Vol.58, No. 1, 2004, 33-40
|
|
|
Document type:
|
Článok z časopisu / Journal Article |
|
Collection:
|
Chemical papers
|
| |
| Attached Files |
| Name |
Description |
MIMEType |
Size |
Downloads |
n581a33.pdf
|
581a33.pdf |
application/pdf |
432.15KB |
0 |
| Author(s) |
Obalová, L.
Valášková, M.
Kovanda, F.
Lacný, Z.
Kolinová, K.
|
| Title |
Study of the Catalytic Activity of Calcined Ni/Mg/Al (Mn) Hydrotalcites for N2O Decomposition
|
| Journal name |
Chemical Papers
|
| Publication date |
2004
|
| Year available |
2004
|
| Volume number |
58
|
| Issue number |
1
|
| ISSN |
0366-6352
|
| Start page |
33
|
| End page |
40
|
| Place of publication |
Poland
|
| Publisher |
Versita
|
| Collection year |
2004
|
| Language |
english
|
| Subject |
250000 Chemical Sciences
250100 Physical Chemistry (incl. Structural)
|
| Abstract/Summary |
Mixed oxide-based catalysts prepared by thermal decomposition of Ni-(Mg)-M(III) hydrotalcite-like compounds (M(III) = Al, Mn) were used in catalytic decomposition of nitrous oxide in order to describe the catalytic activity of multicomponent catalysts and to study the effect of Mg2+ presence in the catalysts structure. Although the catalytic activity of prepared Ni-Al and Mg-Mn calcined hydrotalcites was high, the simultaneous presence of both transition metal cations Ni2+ and Mn3+ in the catalyst structure caused a decrease of N2O conversion and specific surface area. The N2O conversions decrease with increasing content of Mg in the Ni-Al system and increase in the Ni-Mn system. The rise of Mg content in the catalysts resulted in larger surface area and higher thermal stability of both Ni-(Mg)-Al and Ni-(Mg)-Mn samples. The prepared hydrotalcites as well as calcined products were characterized by the thermal analysis (TG/DTA), powder X-ray diraction (XRD), and BET surface area measurements.
|
|
|
|
