Thermal behaviour of Ni-Mn layered double hydroxide and characterization of formed oxides.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F03%3A50033044" target="_blank" >RIV/61388980:_____/03:50033044 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22310/03:00020156

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Thermal behaviour of Ni-Mn layered double hydroxide and characterization of formed oxides.

Popis výsledku v původním jazyce

Thermal behaviour of the Ni-Mn layered double hydroxide (LDH) with Ni/Mn molar ratio equal to 2 prepared by coprecipitation was studied in temperature range 200-1100 degreesC by thermal analysis (TG/DTA/EGA), powder X-ray diffraction (XRD), infrared spectroscopy and voltammetry of microparticles. A loss of interlayer water (dehydration) and sample decomposition accompanied by H2O and CO2 evolution were observed at 175 and 265 degreesC, respectively. Thermal decomposition of Ni-Mn LDH resulted in formation of a predominantly amorphous. mixture of oxides. A relatively high content of amorphous part was observed in samples heated at 200-500 degreesC. The onset of Ni6MnO8 crystallization was detected by XRD in samples heated at 300 degreesC. Together withNi6MnO8, NiMnO3 was detected by XRD in samples heated at 500 degreesC. According to the voltammetry, the further reconstruction of oxides took place above 600 degreesC. NiMnO3 and Ni6MnO8 were converted to spinel (Ni,Mn)(3)O-4 occurring t

Název v anglickém jazyce

Thermal behaviour of Ni-Mn layered double hydroxide and characterization of formed oxides.

Popis výsledku anglicky

Thermal behaviour of the Ni-Mn layered double hydroxide (LDH) with Ni/Mn molar ratio equal to 2 prepared by coprecipitation was studied in temperature range 200-1100 degreesC by thermal analysis (TG/DTA/EGA), powder X-ray diffraction (XRD), infrared spectroscopy and voltammetry of microparticles. A loss of interlayer water (dehydration) and sample decomposition accompanied by H2O and CO2 evolution were observed at 175 and 265 degreesC, respectively. Thermal decomposition of Ni-Mn LDH resulted in formation of a predominantly amorphous. mixture of oxides. A relatively high content of amorphous part was observed in samples heated at 200-500 degreesC. The onset of Ni6MnO8 crystallization was detected by XRD in samples heated at 300 degreesC. Together withNi6MnO8, NiMnO3 was detected by XRD in samples heated at 500 degreesC. According to the voltammetry, the further reconstruction of oxides took place above 600 degreesC. NiMnO3 and Ni6MnO8 were converted to spinel (Ni,Mn)(3)O-4 occurring t

Druh

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

CEP obor

CA - Anorganická chemie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2003

Kód důvěrnosti údajů

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

Název periodika

Solid State Sciences

ISSN

1293-2558

e-ISSN

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Svazek periodika

5

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

1019-1026

Kód UT WoS článku

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EID výsledku v databázi Scopus

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