Effect of precursor synthesis on catalytic activity of in decomposition

2015
journal article
article
cris.lastimport.wos2024-04-09T20:30:55Z
dc.abstract.enSeries 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.pl
dc.affiliationWydział Chemii : Zakład Technologii Chemicznejpl
dc.contributor.authorChromčáková, Žanetapl
dc.contributor.authorObalová, Luciepl
dc.contributor.authorKovanda, Františekpl
dc.contributor.authorLegut, Dominikpl
dc.contributor.authorTitov, Andriipl
dc.contributor.authorRitz, Michalpl
dc.contributor.authorFridrichová, Dagmarpl
dc.contributor.authorMichalik, Svatoplukpl
dc.contributor.authorKuśtrowski, Piotr - 129800 pl
dc.contributor.authorJirátová, Květušepl
dc.date.accessioned2015-12-22T10:47:42Z
dc.date.available2015-12-22T10:47:42Z
dc.date.issued2015pl
dc.description.numberPart 1pl
dc.description.physical18-25pl
dc.description.volume257pl
dc.identifier.doi10.1016/j.cattod.2015.03.030pl
dc.identifier.eissn1873-4308pl
dc.identifier.issn0920-5861pl
dc.identifier.urihttp://ruj.uj.edu.pl/xmlui/handle/item/18651
dc.languageengpl
dc.language.containerengpl
dc.rights.licencebez licencji
dc.subject.encobalt spinelpl
dc.subject.enCo3O4 catalystpl
dc.subject.enprecursor synthesispl
dc.subject.enN2O decompositionpl
dc.subtypeArticlepl
dc.titleEffect of precursor synthesis on catalytic activity of $Co_3O_4$ in $N_2O$ decompositionpl
dc.title.journalCatalysis Todaypl
dc.title.volumeAir and water pollution abatement catalysis (AWPAC 2014)pl
dc.typeJournalArticlepl
dspace.entity.typePublication
cris.lastimport.wos
2024-04-09T20:30:55Z
dc.abstract.enpl
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.
dc.affiliationpl
Wydział Chemii : Zakład Technologii Chemicznej
dc.contributor.authorpl
Chromčáková, Žaneta
dc.contributor.authorpl
Obalová, Lucie
dc.contributor.authorpl
Kovanda, František
dc.contributor.authorpl
Legut, Dominik
dc.contributor.authorpl
Titov, Andrii
dc.contributor.authorpl
Ritz, Michal
dc.contributor.authorpl
Fridrichová, Dagmar
dc.contributor.authorpl
Michalik, Svatopluk
dc.contributor.authorpl
Kuśtrowski, Piotr - 129800
dc.contributor.authorpl
Jirátová, Květuše
dc.date.accessioned
2015-12-22T10:47:42Z
dc.date.available
2015-12-22T10:47:42Z
dc.date.issuedpl
2015
dc.description.numberpl
Part 1
dc.description.physicalpl
18-25
dc.description.volumepl
257
dc.identifier.doipl
10.1016/j.cattod.2015.03.030
dc.identifier.eissnpl
1873-4308
dc.identifier.issnpl
0920-5861
dc.identifier.uri
http://ruj.uj.edu.pl/xmlui/handle/item/18651
dc.languagepl
eng
dc.language.containerpl
eng
dc.rights.licence
bez licencji
dc.subject.enpl
cobalt spinel
dc.subject.enpl
Co3O4 catalyst
dc.subject.enpl
precursor synthesis
dc.subject.enpl
N2O decomposition
dc.subtypepl
Article
dc.titlepl
Effect of precursor synthesis on catalytic activity of $Co_3O_4$ in $N_2O$ decomposition
dc.title.journalpl
Catalysis Today
dc.title.volumepl
Air and water pollution abatement catalysis (AWPAC 2014)
dc.typepl
JournalArticle
dspace.entity.type
Publication

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