Effect of Zinc on the Structure and Activity of the Cobalt Oxide Catalysts for NO Decomposition

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27640%2F23%3A10251464" target="_blank" >RIV/61989100:27640/23:10251464 - isvavai.cz</a>

Alternative codes found

RIV/67985858:_____/23:00569340 RIV/61989100:27710/23:10251464

Result on the web

<a href="https://www.mdpi.com/2073-4344/13/1/18" target="_blank" >https://www.mdpi.com/2073-4344/13/1/18</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/catal13010018" target="_blank" >10.3390/catal13010018</a>

Result language

angličtina

Original language name

Effect of Zinc on the Structure and Activity of the Cobalt Oxide Catalysts for NO Decomposition

Original language description

Co4MINUS SIGN iZniMnAlOx mixed oxides (i = 0, 0.5 and 1) were prepared by coprecipitation, subsequently modified with potassium (2 or 4 wt.% K), and investigated for direct catalytic NO decomposition, one of the most attractive and challenging NOx abatement processes. The catalysts were characterised by atomic absorption spectroscopy, powder X-ray diffraction, Raman and infrared spectroscopy, temperature-programmed reduction by hydrogen, the temperature-programmed desorption of CO2 and NO, X-ray photoelectron spectroscopy, scanning electron microscopy, the work function, and N2 physisorption. The partial substitution of cobalt increased the specific surface area, decreased the pore sizes, influenced the surface composition, and obtained acid-base properties as a result of the higher availability of medium and strong basic sites. No visible changes in the morphology, crystallite size, and work function were observed upon the cobalt substitution. The conversion of NO increased after the Co substitution, however, the increase in the amount of zinc did not affect the catalytic activity, whereas a higher amount of potassium caused a decrease in the NO conversion. The results obtained, which were predominantly the acid-base characteristics of the catalyst, are in direct correlation with the proposed NO decomposition reaction mechanisms with NOxMINUS SIGN as the main reaction intermediates.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20400 - Chemical engineering

Project

<a href="/en/project/EF17_049%2F0008419" target="_blank" >EF17_049/0008419: Support of cross-sectoral cooperation in the field of environmental pollutants reduction and waste recovery</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Catalysts

ISSN

2073-4344

e-ISSN

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Volume of the periodical

13

Issue of the periodical within the volume

1

Country of publishing house

CH - SWITZERLAND

Number of pages

22

Pages from-to

1-22

UT code for WoS article

000916909700001

EID of the result in the Scopus database

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