About: Effect of precursor synthesis on catalytic activity of Co3O4 in N2O decomposition

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Series of precursors was prepared by precipitation of cobalt nitrate in aqueous solutions using various precipitation agents (NH3.H2O, NaOH, Na2CO3) and reactions conditions (OH/Co molar ratio, aging time). Powder XRD showed different phase composition of the obtained precursors, in which β-Co(OH)2, CoII-CoIII layered double hydroxide, and basic cobalt carbonate were identified. Only Co3O4 spinel-like oxide was found in products after heating at 500 °C in air but different N2O conversions were observed over the examined oxide catalysts. Especially the catalysts obtained from β-Co(OH)2 precursors showed high catalytic activity in N2O decomposition. The correlation between methods of preparation, phase composition of precursors, catalytic properties of the related oxide catalysts, and the role of the cobalt ions as catalytic active sites is discussed. Series of precursors was prepared by precipitation of cobalt nitrate in aqueous solutions using various precipitation agents (NH3.H2O, NaOH, Na2CO3) and reactions conditions (OH/Co molar ratio, aging time). Powder XRD showed different phase composition of the obtained precursors, in which β-Co(OH)2, CoII-CoIII layered double hydroxide, and basic cobalt carbonate were identified. Only Co3O4 spinel-like oxide was found in products after heating at 500 °C in air but different N2O conversions were observed over the examined oxide catalysts. Especially the catalysts obtained from β-Co(OH)2 precursors showed high catalytic activity in N2O decomposition. The correlation between methods of preparation, phase composition of precursors, catalytic properties of the related oxide catalysts, and the role of the cobalt ions as catalytic active sites is discussed. (en)
Title	Effect of precursor synthesis on catalytic activity of Co3O4 in N2O decomposition Effect of precursor synthesis on catalytic activity of Co3O4 in N2O decomposition (en)
skos:prefLabel	Effect of precursor synthesis on catalytic activity of Co3O4 in N2O decomposition Effect of precursor synthesis on catalytic activity of Co3O4 in N2O decomposition (en)
skos:notation	RIV/61989100:27710/14:86093395!RIV15-MSM-27710___
http://linked.open...avai/riv/aktivita	P S
http://linked.open...avai/riv/aktivity	P(GA14-13750S), P(LO1208), S
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Chromčáková, Žaneta Obalová, Lucie Pacultová, Kateřina
http://linked.open.../riv/druhVysledku	O - Ostatní výsledky nezařaditelné do žádného z výše uvedených druhů výsledku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoká škola báňská - Technická univerzita Ostrava / Institut environmentálních technologií
http://linked.open...dnocenehoVysledku	13457
http://linked.open...ai/riv/idVysledku	RIV/61989100:27710/14:86093395
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Cobalt spinel, Co3O4 catalyst, N2O decomposition, precursor synthesis (en)
http://linked.open.../riv/klicoveSlovo	Co3O4 catalyst Cobalt spinel precursor synthesis N2O decomposition
http://linked.open...ontrolniKodProRIV	[9F8375E94452]
http://linked.open...in/vavai/riv/obor	CI
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	8 (xsd:int)
http://linked.open...vavai/riv/projekt	Teoretické aspekty energetického zpracování odpadů a ochrany prostředí před negativními dopady Structured catalysts with active oxide layer for abatement of gaseous pollutants
http://linked.open...UplatneniVysledku	2014
http://linked.open...iv/tvurceVysledku	Chromčáková, Žaneta Jirátová, Květuše Kovanda, František Obalová, Lucie Kukutschová, Jana Kustrowski, Piotr Michalik, Svatopluk Pacultová, Kateřina
http://localhost/t...ganizacniJednotka	27710

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