Effect of Precursor Synthesis on Catalytic Activity of Co3O4 in N2O Decomposition.

Chromčáková, Ž.; Obalová, L.; Kovanda, F.; Legut, D.; Titov, A.; Ritz, M.; Fridrichová, D.; Michalik, S.; Kustrowski, P.; Jirátová, Květa

doi:https://dx.doi.org/10.1016/j.cattod.2015.03.030

Number of the records: 1

Effect of Precursor Synthesis on Catalytic Activity of Co3O4 in N2O Decomposition.

1.

SYSNO ASEP	0456089
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Effect of Precursor Synthesis on Catalytic Activity of Co3O4 in N2O Decomposition.
Author(s)	Chromčáková, Ž. (CZ) Obalová, L. (CZ) Kovanda, F. (CZ) Legut, D. (CZ) Titov, A. (CZ) Ritz, M. (CZ) Fridrichová, D. (CZ) Michalik, S. (CZ) Kustrowski, P. (PL) Jirátová, Květa (UCHP-M)_{RID, ORCID, SAI}
Source Title	Catalysis Today. - : Elsevier - ISSN 0920-5861 Roč. 257, Part 1 (2015), s. 18-25
Number of pages	8 s.
Action	AWPAC2014 - International Symposium on Air & Water Pollution Abatement Catalysis
Event date	01.09.2014 - 05.09.2014
VEvent location	Krakow
Country	PL - Poland
Event type	EUR
Language	eng - English
Country	NL - Netherlands
Keywords	cobalt spinel ; Co3O4 ; N2O decomposition ; precursor synthesis
Subject RIV	CI - Industrial Chemistry, Chemical Engineering
R&D Projects	GA14-13750S GA ČR - Czech Science Foundation (CSF)
Institutional support	UCHP-M - RVO:67985858
UT WOS	000361249500004
EID SCOPUS	84941315516
DOI	10.1016/j.cattod.2015.03.030
Annotation	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.
Workplace	Institute of Chemical Process Fundamentals
Contact	Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227
Year of Publishing	2016

Number of the records: 1