Abstract
The influence of the support nature and electronic state of iron oxide nanoclusters on the catalytic properties of supported systems was studied for dichlorobutene isomerization. A sample with a Fe content of 2.5 wt.% on the activated silica matrix containing FeIII and FeII ions in the paramagnetic state exhibits the highest activity. The activity of iron on silica gel enhances with the appearance of magnetically ordered nanoclusters of γ-iron oxide formed at the iron content on the catalyst as high as 15 wt.%. An increase in the catalyst activity is favored by the formation of two states of iron (FeIII and FeII) that occurs under the synthesis conditions or during the action of a reactant.
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Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 6, pp. 1376–1382, June, 2005.
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Rostovshchikova, T.N., Smirnov, V.V., Tsodikov, M.V. et al. Catalytic conversions of chloroolefins over iron oxide nanoparticles 1. Isomerization of dichlorobutenes in the presence of iron oxide nanopaticles immobilized on silicas with different structures. Russ Chem Bull 54, 1418–1424 (2005). https://doi.org/10.1007/s11172-005-0421-2
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DOI: https://doi.org/10.1007/s11172-005-0421-2