Počet záznamů: 1
Preparation of LaNiO3 perovskite by oxalate and carbonate precursor method for utilization as catalyst for high-temperature decomposition of N2O
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SYSNO ASEP 0511953 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Preparation of LaNiO3 perovskite by oxalate and carbonate precursor method for utilization as catalyst for high-temperature decomposition of N2O Tvůrce(i) Bělina, P. (CZ)
Sádovská, Galina (UFCH-W) RID, ORCID
Krejčíková, V. (CZ)
Dohnalová, Ž. (CZ)
Šulcová, P. (CZ)Zdroj.dok. Journal of Thermal Analysis and Calorimetry. - : Akadémiai Kiadó - ISSN 1388-6150
Roč. 138, č. 6 (2019), s. 4197-4202Poč.str. 6 s. Jazyk dok. eng - angličtina Země vyd. HU - Maďarsko Klíč. slova Carbonate precursor method ; LaNiO 3 ; Mixed metal oxides ; N O decomposition 2 ; Oxalate precursor method ; Perovskite ; Thermal decomposition Vědní obor RIV CF - Fyzikální chemie a teoretická chemie Obor OECD Physical chemistry CEP LM2015073 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy EF16_013/0001821 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Způsob publikování Omezený přístup Institucionální podpora UFCH-W - RVO:61388955 UT WOS 000501308800030 EID SCOPUS 85069919063 DOI 10.1007/s10973-019-08596-9 Anotace The mixed oxide LaNiO3 with perovskite structure was prepared by two relatively new and unconventional methods including preparation and thermal decomposition of mixed metal oxalate or carbonate precursors. The intermediates were prepared by reaction in a highly concentrated suspension (paste). The thermal decomposition conditions of these intermediates were described, and the final calcination temperatures were determined, which were done using thermal analysis methods and X-ray diffraction. During the decomposition of mixed carbonates, one-phase LaNiO3 is produced directly, and in case of decomposition of oxalates, a mixture of LaNiO3 and La2O3 is produced due to the formation of La2O2CO3 during the heating. Catalytic decomposition of nitrous oxide at high temperature (650-930 degrees C) and high loading (GHSV = 350,000 h(-1)) has shown high LaNiO3 activity, even at lower temperatures. The results were compared with the same compound obtained by co-precipitation and by solid-state reaction. Methods of preparation based on decomposition of oxalate and carbonate intermediates lead to the preparation of materials with appropriate composition, morphology, specific surface and high catalytic activity. Pracoviště Ústav fyzikální chemie J.Heyrovského Kontakt Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Rok sběru 2020 Elektronická adresa http://hdl.handle.net/11104/0302186
Počet záznamů: 1