Реферат: The kinetics of iron(II) sulfate oxidation with molecular oxygen on the 2% Pt/Sibunit catalyst was studied by a volumetric method at atmospheric pressure, T = 303 K, pH 0.33–2.4, [FeSO4] = 0.06−0.48 mol/l, and [Fe2(SO4)3] = 0−0.36 mol/l in the absence of diffusion limitations. Relationships were established between the reaction rate and the concentrations of Fe2+, Fe3+, H+, and Cl− ions in the reaction solution. The kinetic isotope effect caused by the replacement of H2O with D2O and of H+ with D+ was measured. The dependence of Fe2+ and Fe3+ adsorption on the catalyst pretreatment conditions was studied. A reaction scheme is suggested, which includes oxygen adsorption, the formation of a Fe(II) complex with surface oxygen, and the one-electron reduction of oxygen. The last step can proceed via two pathways, namely, electron transfer with H+ addition and hydrogen atom transfer from the coordination sphere of the iron(II) aqua complex. A kinetic equation providing a satisfactory fit to experimental data is set up. Numerical values are determined for the rate constants of the individual steps of the scheme suggested.

Библиографическая ссылка: Okhlopkova L.B. , Kuznetsova N.I.
Iron(II) Sulfate Oxidation with Oxygen on a Pt/C Catalyst: A Kinetic Study
Kinetics and Catalysis. 2008. V.49. N1. P.34-42. DOI: 10.1134/S0023158408010059 WOS Scopus РИНЦ CAPlusCA OpenAlex

Оригинальная: Охлопкова Л.Б. , Кузнецова Н.И.
Окисление сульфата железа(II) кислородом на катализаторе Pt/C. Кинетическое исследование
Кинетика и катализ. 2008. Т.49. №1. С.38-47. РИНЦ

Даты:

Поступила в редакцию:	7 сент. 2006 г.
Опубликована в печати:	1 янв. 2008 г.
Опубликована online:	19 янв. 2011 г.

Идентификаторы БД:

Web of science:	WOS:000253546400005
Scopus:	2-s2.0-41049108312
РИНЦ:	13575093
Chemical Abstracts:	2008:342616
Chemical Abstracts (print):	148:569871
OpenAlex:	W2082458372

Цитирование в БД:

БД	Цитирований
Web of science	3
Scopus	3
РИНЦ	3
OpenAlex	3

Альметрики: