Interaction between carbon oxides, hydrogen and Fe2O3 and An + 1FenO3n + 1 (A = Gd, Sr, n = 1, 2, …, ∞)


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The interaction between carbon oxides and hydrogen and surfaces of iron(III) oxide and An + 1FenO3n + 1 (where A = Gd, Sr, and n = 1, 2, …, ∞ is the number of perovskite layers) complex oxides is studied for the first time by means of thermal programmed desorption. It is shown that carbon oxides are adsorbed in molecular form with the formation of carbonate–carboxylate complexes, and in dissociative form. The ratios of the adsorption forms of both oxides are determined by the structure of ferrites, the number of perovskite layers, and the valence state and coordinative saturation of iron. The presence of weakly and strongly bonded hydrogen forms is established, and it is suggested that hydrogen dissolves in the bulk of a perovskite.

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T. Sheshko

People’s Friendship University of Russia

编辑信件的主要联系方式.
Email: sheshko_tf@pfur.ru
俄罗斯联邦, Moscow, 117198

Yu. Serov

People’s Friendship University of Russia

Email: sheshko_tf@pfur.ru
俄罗斯联邦, Moscow, 117198

T. Kryuchkova

People’s Friendship University of Russia

Email: sheshko_tf@pfur.ru
俄罗斯联邦, Moscow, 117198

I. Khairullina

People’s Friendship University of Russia

Email: sheshko_tf@pfur.ru
俄罗斯联邦, Moscow, 117198

I. Chislova

St. Petersburg State University

Email: sheshko_tf@pfur.ru
俄罗斯联邦, St. Petersburg, 119034

I. Zvereva

St. Petersburg State University

Email: sheshko_tf@pfur.ru
俄罗斯联邦, St. Petersburg, 119034

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