The Effect of Composition of the Ruthenium Precursors and Heat Treatment Conditions on the Activity of Ru-Ba/Sibunit Catalysts for Ammonia Synthesis
Full article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Original
|
| Journal |
Molecular Catalysis
ISSN: 2468-8231
|
| Output data |
Year: 2017,
Volume: 433,
Pages: 235-241
Pages count
: 7
DOI:
10.1016/j.mcat.2016.12.015
|
| Tags |
Ammonia synthesis; Supported ruthenium catalysts; Barium promoter; Sibunit |
| Authors |
Smirnova N.S.
3
,
Iost K.N.
1
,
Temerev V.L.
1
,
Gulyaeva T.I.
1
,
Trenikhin M.V.
1
,
Muromtsev I.V.
1
,
Khramov E.V.
2
,
Zubavichus Y.V.
2
,
Shlyapin D.A.
1
,
Tsyrul’nikov P.G.
1
|
| Affiliations |
| 1 |
Institute of Hydrocarbons Processing SB RAS
|
| 2 |
National Research Center “Kurchatov Institute”
|
| 3 |
Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences
|
|
The effect of composition of the chlorine-containing precursors of ruthenium and heat treatment conditions on the preparation of catalysts supported on carbon composite Sibunit for the ammonia synthesis was studied. The activity of Ru-Ba/Sibunit samples was shown to depend on ruthenium dispersion and residual chlorine content in the catalyst. The removal of outer-sphere chloride ions from ammonia complexes of ruthenium via ionic exchange and the replacement of hydrogen reduction of the Ru precursor by calcination in an inert atmosphere prevent sintering and agglomeration of the active component particles, thus enhancing the catalyst activity.