G. V. Pankina, A. N. Kharlanov, R. Yu. Novotortsev, P. A. Chernavskii
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引用次数: 0
Abstract
Abstract—Deposited Fe/MgAl2O4 catalysts modified with La are prepared by either joint or sequential impregnation of the magnesium-aluminum spinel support. The results obtained using the methods of temperature programmed reduction (TPR) and in situ magnetometry show that the catalyst prepared by promoting spinel with lanthanum is reduced more efficiently than the catalysts synthesized using the other techniques of lanthanum incorporation. The adsorption and reduction properties of these catalysts are compared based on the results of the in situ magnetometry, the low-temperature adsorption of nitrogen, and the IR spectroscopy of adsorbed CO. It is shown that the presence of lanthanum in the catalyst accelerates the reduction of iron oxides to iron.
期刊介绍：
Russian Journal of Physical Chemistry A. Focus on Chemistry (Zhurnal Fizicheskoi Khimii), founded in 1930, offers a comprehensive review of theoretical and experimental research from the Russian Academy of Sciences, leading research and academic centers from Russia and from all over the world.
Articles are devoted to chemical thermodynamics and thermochemistry, biophysical chemistry, photochemistry and magnetochemistry, materials structure, quantum chemistry, physical chemistry of nanomaterials and solutions, surface phenomena and adsorption, and methods and techniques of physicochemical studies.
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