Ceramic cordierite/CeO2 for photocatalytic reduction of CO2

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27710%2F19%3A10242098" target="_blank" >RIV/61989100:27710/19:10242098 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Ceramic cordierite/CeO2 for photocatalytic reduction of CO2

Popis výsledku v původním jazyce

Abstract - vermiculites are commercially available inexpensive clay minerals, but their structural properties significantly affect the properties of cordierite ceramics. In recent years, photocatalytic N2O conversion was studied over cordierite/steatite/CeO2 ceramics prepared from raw talc, kaolin and CeO2 nanoparticles precipitated on vermiculite from the Paraiba region of Brazil. Base on this result the new set of ceramics cordierite/CeO2 was prepared by precipitation of nanoparticles of ceria (CeO2) on vermiculite from the Brazil. The samples were prepared from the mixtures containing talc (from 20 to 40 wt.%), kaolin (about 50 wt.%) and vermiculite/CeO2 nanoparticles (from 13 to 30 wt.%) by sintering at 1300oC. The amount of CeO2 in mixtures was from 4 to 9 wt.%. The photocatalysts properties were characterized by several characterization methods, such as X-ray powder diffraction, N2 physisorption, diffuse reflectance UV-vis spectroscopy and photoelectrochemical measurements.. The photocatalytic activity of ceramics cordierite/CeO2 was investigated for the CO2 photocatalytic reduction. The main reaction products was carbon monoxide moreover, hydrogen was also detected. Correlation between structural, optical and electronic properties and photoactivity have been studied in detail.

Název v anglickém jazyce

Ceramic cordierite/CeO2 for photocatalytic reduction of CO2

Popis výsledku anglicky

Abstract - vermiculites are commercially available inexpensive clay minerals, but their structural properties significantly affect the properties of cordierite ceramics. In recent years, photocatalytic N2O conversion was studied over cordierite/steatite/CeO2 ceramics prepared from raw talc, kaolin and CeO2 nanoparticles precipitated on vermiculite from the Paraiba region of Brazil. Base on this result the new set of ceramics cordierite/CeO2 was prepared by precipitation of nanoparticles of ceria (CeO2) on vermiculite from the Brazil. The samples were prepared from the mixtures containing talc (from 20 to 40 wt.%), kaolin (about 50 wt.%) and vermiculite/CeO2 nanoparticles (from 13 to 30 wt.%) by sintering at 1300oC. The amount of CeO2 in mixtures was from 4 to 9 wt.%. The photocatalysts properties were characterized by several characterization methods, such as X-ray powder diffraction, N2 physisorption, diffuse reflectance UV-vis spectroscopy and photoelectrochemical measurements.. The photocatalytic activity of ceramics cordierite/CeO2 was investigated for the CO2 photocatalytic reduction. The main reaction products was carbon monoxide moreover, hydrogen was also detected. Correlation between structural, optical and electronic properties and photoactivity have been studied in detail.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

20400 - Chemical engineering

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)

Rok uplatnění

2019

Kód důvěrnosti údajů

C - Předmět řešení projektu podléhá obchodnímu tajemství (§ 504 Občanského zákoníku), ale název projektu, cíle projektu a u ukončeného nebo zastaveného projektu zhodnocení výsledku řešení projektu (údaje P03, P04, P15, P19, P29, PN8) dodané do CEP, jsou upraveny tak, aby byly zveřejnitelné.