The catalytic decomposition of nitric oxide by metallic oxides

Winter, E. R. S.

doi:10.1016/0021-9517(71)90182-5

Cited by 180 publications

(78 citation statements)

References 9 publications

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“…Oxygen desorption was thought to occur in the rate-limiting step of the decomposition of nitric (27) and nitrous oxides (25). The heat of desorption was influenced by the oxide stoichiometry (26) where q usually increased with the removal of surface oxygen, except for chromium(111) and iron(II1) oxides.…”

Section: Discussionmentioning

confidence: 99%

Oxidation of 1-butene by nitrous oxide over manganese(III) and related transition metal oxides

Ross¹,

Fairbridge²

1984

Can. J. Chem.

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The oxidation of 1-butene by nitrous oxide over manganese(II1) oxide was studied in a continuous flow system from 573 to 673 K. Kinetic parameters were derived from the exponential relationship: r = ka P::~P:~;, over reactant partial pressure ranges, 0.30 < PN20 < 2.60 kPa and 0.43 < PC,,, < 8.27 kPa. The reaction mechanism proposed involves a complex sequence of steps which include surface radical reactions. On the basis of a comparison of specific reaction rates, the catalytic activity series for the reaction over a number of transition metal oxides was: Introduction The catalytic performance of manganese oxides in several redox reactions involving hydrocarbons with oxygen or nitrogen oxides has been reported recently. The work has included the oxidation of ethane by nitric oxide over unsupported manganese(II1) oxide (1) and the oxidation of 1-butene and ethane by oxygen over manganese(II1) oxide supported on carbon fibres (2). The results of these experiments pointed to complex surface mechanisms with rate-controlling steps most probably associated with the interactions of species within the adsorbed layer.In the present investigation an attempt has been made to evaluate the kinetics of the catalysis of 1-butene by nitrous oxide over manganese(II1) oxide. Measurements of reaction rates were supplemented by structural analysis. A general comparison of the catalytic activities in the reaction of metal oxides of the first transition series has also been carried out.

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Section: Discussionmentioning

confidence: 99%

Oxidation of 1-butene by nitrous oxide over manganese(III) and related transition metal oxides

Ross¹,

Fairbridge²

1984

Can. J. Chem.

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“…Vários materiais que incluem principalmente metais, óxidos metálicos e zeólitas tem sido usados para a decomposição do NO [11][12][13][14][15]. Entretanto, depois que Iwamoto et al [16] descobriram a alta atividade dos catalisadores de cobre suportados em zeólita para a decomposição do NO, o sistema Cu-ZSM-5 tem sido alvo de intensa pesquisa.…”

Section: Introductionunclassified

Síntese da zeólita ZSM-5 e suas propriedades estruturais após troca iônica com cobre

2000

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A zeólita ZSM-5 foi sintetizada utilizando sílica "Aerosil-Degussa -- 380 m²/g" como fonte de silício, em substituição ao trisilicato de sódio, que é normalmente utilizado na síntese dessa zeólita. Subseqüentemente, foi incorporado cobre à ZSM-5 através do método convencional de troca iônica. Técnicas de difração de raios X, microscopia eletrônica de varredura, área superficial e análise elementar por absorção atômica foram utilizadas para verificar a formação da zeólita sintetizada e suas propriedades após troca com cobre. Os resultados mostraram que houve a formação da ZSM-5 nas condições de síntese empregadas e que a amostra modificada pelo processo de troca manteve as propriedades da zeólita original.

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“…Using the infrared results on ruthenium, one is led to the conclusion that for the oxidized form of the catalyst the bonding is through the nitrogen. Winter (129), in investigating the catalytic activity of 40 metallic oxides, postulated that NO adsorption occurred through the oxygen at an anion vacancy in the oxide lattice. Since mechanistically, nitric oxide must adsorb on a site that is already highly oxidized, it seems less reasonable to have it bond via the oxygen than the nitrogen.…”

Section: Au Rumentioning

confidence: 99%

Interaction and reactivity of nitric oxide and carbon monoxide on ruthenium surfaces

Quick

1980

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Quick, Edward Edwards, "The interaction and reactivity of nitric oxide and carbon monoxide on ruthenium surfaces " (1979 INFORMATION TO USERSThis was produced from a copy of a document sent to us for microfilming. While the most advanced technological means to photograph and reproduce this document have been used, the quality is heavily dependent upon the quality of the material submitted.The following explanation of techniques is provided to help you understand markings or notations which may appear on this reproduction. 1. The sign or "target" for pages apparently lacking from the document photographed is "Missing Page(s)". If it was possible to obtain the missing page(s) or section, they are spliced into the film along with adjacent pages. This may have necessitated cutting through an image and duplicating adjacent pages to assure you of complete continuity. When an image on the film is obliterated with a round black mark it is anindication that the film inspector noticed either blurred copy because of movement during exposure, or duplicate copy. Unless we meant to delete copyrighted materials that should not have been filmed, you will find a good image of the page in the adjacent frame,.3. When a map, drawing or chart, etc., is part of the material being photo graphed the photographer has followed a definite method in "sectioning" the material. It is customary to begin filming at the upper left hand comer of a large sheet and to continue from left to right in equal sections with small overlaps. If necessary, sectioning is continued agaun-beginning below the first row and continuing on until complete.

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The catalytic decomposition of nitric oxide by metallic oxides

Cited by 180 publications

References 9 publications

Oxidation of 1-butene by nitrous oxide over manganese(III) and related transition metal oxides

Oxidation of 1-butene by nitrous oxide over manganese(III) and related transition metal oxides

Síntese da zeólita ZSM-5 e suas propriedades estruturais após troca iônica com cobre

Interaction and reactivity of nitric oxide and carbon monoxide on ruthenium surfaces

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