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Monolithic FeОx/Al2O3 Catalysts for Ammonia Oxidation and Nitrous Oxide Decomposition Full article

Общее Language: Английский, Genre: Full article,
Status: Published, Source type: Translated
Journal Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210
Output data Year: 2017, Volume: 58, Number: 2, Pages: 167-178 Pages count : 12 DOI: 10.1134/S0023158417020100
Tags FeOх/Al2O3 catalysts, N2O decomposition, NH3 oxidation
Authors Pinaeva L.G. 1 , Dovlitova L.S. 1 , Isupova L.A. 1
Affiliations
1 Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia

Funding (1)

1 Federal Agency for Scientific Organizations 0303-2016-0004

Abstract: (1.2–8.3)%FeOх/Al2O3 monolith catalysts have been prepared by impregnating alumina with aqueous solutions of iron(III) nitrate and oxalate and have been tested in NH3 oxidation and in the selective decomposition of N2O in mixtures resulting from ammonia oxidation over a Pt–Rh gauze pack under conditions of nitric acid synthesis (800–900°C). In the case of the support calcined at 1200°C, the catalyst is dominated by bulk Fe2O3 particles localized on the Al2O3 surface. The activity of these samples in both reactions decreases with a decreasing active component content, thus limiting the potential of Fe2(C2O4)3 · 5H2O, an environmentally friendlier but poorly soluble compound, as a substitute for Fe(NO3)3 · 9H2O. Decreasing the support calcination temperature to 1000°C or below leads to the formation of a highly defective Fe–Al–O solid solution in the (1.2–2.7)%FeOх/Al2O3 catalysts. The surface layers of the solid solution are enriched with iron ions or stabilize ultrafine FeOх particles. The catalytic activity of these samples in both reactions is close to the activities measured for ~8%FeOх/Al2O3 samples prepared using iron nitrate.
Cite: Pinaeva L.G. , Dovlitova L.S. , Isupova L.A.
Monolithic FeОx/Al2O3 Catalysts for Ammonia Oxidation and Nitrous Oxide Decomposition
Kinetics and Catalysis. 2017. V.58. N2. P.167-178. DOI: 10.1134/S0023158417020100 publication_identifier_short.wos_identifier_type publication_identifier_short.scopus_identifier_type publication_identifier_short.rinz_identifier_type
ArticleLinkType.TRANSLATED_TO_ORIGINAL: Пинаева Л.Г. , Довлитова Л.С. , Исупова Л.А.
FeOx/Al2O3 блочные катализаторы для окисления аммиака и разложения закиси азота
Кинетика и катализ. 2017. Т.58. №2. С.183-195. DOI: 10.7868/S0453881117020113 publication_identifier_short.rinz_identifier_type
Dates:
Submitted: May 26, 2016
Published print: Mar 1, 2017
Published online: Apr 19, 2017
Identifiers:
publication_identifier.wos_identifier_type WOS:000399710500009
publication_identifier.scopus_identifier_type 2-s2.0-85017595188
publication_identifier.rinz_identifier_type 29493264
publication_identifier.accession_number_identifier_type 2017:615976
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