A comparative study of TiO2-supported and bulk Co-Mn-Al catalysts for N2O decomposition

Kód výsledku v IS VaVaI

RIV/61989100:27360/12:86083730 - isvavai.cz

Nalezeny alternativní kódy

RIV/67985858:_____/12:00398558

Výsledek na webu

http://dx.doi.org/10.1016/j.cattod.2012.03.046

DOI - Digital Object Identifier

10.1016/j.cattod.2012.03.046

Jazyk výsledku

angličtina

Název v původním jazyce

A comparative study of TiO2-supported and bulk Co-Mn-Al catalysts for N2O decomposition

Popis výsledku v původním jazyce

A series of Co-Mn-Al/TiO2 catalysts with different Co+Mn loading (1?24 wt%) was prepared by impregnation of TiO2 support. Bulk Co-Mn-Al mixed oxides were prepared by different methods. The prepared catalysts were characterized by chemical analysis, surface area measurement, temperature programmed techniques (TPR, TPD) and tested for N2O catalytic decomposition. TiO2 acted only as a catalytic support and did not contribute to the catalytic activity. N2O conversion over TiO2-supported Co-Mn-Al catalysts was increasing with Co+Mn loading, and it was proportional to the amount of easily reducible components. Comparing the catalysts with identical amount of active components, the highest catalytic activity was achieved on the calcined precursors having carbonates in their molecules (layered double hydroxides Co-Mn-Al-HT-ex and Co-Mn-Al-carb), the lowest one on the calcined Co-Mn-Al nitrates due to the lower surface area, less advantageous porous structure and worse reducibility.

Název v anglickém jazyce

A comparative study of TiO2-supported and bulk Co-Mn-Al catalysts for N2O decomposition

Popis výsledku anglicky

A series of Co-Mn-Al/TiO2 catalysts with different Co+Mn loading (1?24 wt%) was prepared by impregnation of TiO2 support. Bulk Co-Mn-Al mixed oxides were prepared by different methods. The prepared catalysts were characterized by chemical analysis, surface area measurement, temperature programmed techniques (TPR, TPD) and tested for N2O catalytic decomposition. TiO2 acted only as a catalytic support and did not contribute to the catalytic activity. N2O conversion over TiO2-supported Co-Mn-Al catalysts was increasing with Co+Mn loading, and it was proportional to the amount of easily reducible components. Comparing the catalysts with identical amount of active components, the highest catalytic activity was achieved on the calcined precursors having carbonates in their molecules (layered double hydroxides Co-Mn-Al-HT-ex and Co-Mn-Al-carb), the lowest one on the calcined Co-Mn-Al nitrates due to the lower surface area, less advantageous porous structure and worse reducibility.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

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Projekt

GA106/09/1664: Nosičové oxidické katalyzátory s nízkým obsahem aktivních složek určené pro rozklad N2O

Návaznosti

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

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Catalysis Today

ISSN

0920-5861

e-ISSN

—

Svazek periodika

191

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

4

Strana od-do

112-115

Kód UT WoS článku

000308675000019

EID výsledku v databázi Scopus

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