Emanation thermal analysis study of the preparation of ruthenia-titania-based finely dispersed powders.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F02%3A50023055" target="_blank" >RIV/61388980:_____/02:50023055 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/46356088:_____/02:10401046

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Emanation thermal analysis study of the preparation of ruthenia-titania-based finely dispersed powders.

Popis výsledku v původním jazyce

Emanation thermal analysis (ETA), thermogravimetry (TG), differential thermal analysis (DTA), X-ray diffraction analysis (XRD), and transmission electron microscopy (TEM) were used for the characterization of thermal behavior of hydrous oxides (RuO2)(x)-(TiO2)(1-x) (.) nH(2)O and dehydrated oxides (RuO2)(x)-(TiO2)(1-x), respectively (x =1, 0.9, and 0.7) on heating in argon and argon + 10% hydrogen, respectively. The samples were heated in the range 20-600degreesC at the constant heating rate 6 K/min. From the TG and DTA results the temperature intervals of dehydration and/or reduction of ruthenium dioxide into Ru metal were determined. ETA (based on the measurement of radon previously incorporated into the sample) brought about the information about surface area development and microstructure changes in the near surface layers up to 80 mm under in situ conditions of the heating. The temperature intervals of the annealing of near surface and structure defects serving as diffusion paths

Název v anglickém jazyce

Emanation thermal analysis study of the preparation of ruthenia-titania-based finely dispersed powders.

Popis výsledku anglicky

Emanation thermal analysis (ETA), thermogravimetry (TG), differential thermal analysis (DTA), X-ray diffraction analysis (XRD), and transmission electron microscopy (TEM) were used for the characterization of thermal behavior of hydrous oxides (RuO2)(x)-(TiO2)(1-x) (.) nH(2)O and dehydrated oxides (RuO2)(x)-(TiO2)(1-x), respectively (x =1, 0.9, and 0.7) on heating in argon and argon + 10% hydrogen, respectively. The samples were heated in the range 20-600degreesC at the constant heating rate 6 K/min. From the TG and DTA results the temperature intervals of dehydration and/or reduction of ruthenium dioxide into Ru metal were determined. ETA (based on the measurement of radon previously incorporated into the sample) brought about the information about surface area development and microstructure changes in the near surface layers up to 80 mm under in situ conditions of the heating. The temperature intervals of the annealing of near surface and structure defects serving as diffusion paths

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

<a href="/cs/project/GA104%2F00%2F1046" target="_blank" >GA104/00/1046: Vývoj mikrostruktury a tvorba nových fází v systému RuO2-TiO2 během ohřevu v různých plynných mediích</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2002

Kód důvěrnosti údajů

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

Název periodika

Journal of Colloid and Interface Science

ISSN

0021-9797

e-ISSN

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Svazek periodika

248

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

47-53

Kód UT WoS článku

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EID výsledku v databázi Scopus

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