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Description
| - Dichloromethane (DCM) belongs among three most commonly used chlorinated solvents in Europe and it is emitted into air mostly as a part of emissions from various industrial processes (e.g. production of pharmaceutics). It acts as a skin and eye irritating agent, repeated or long-term exposure may cause damage to the blood, heart, liver and kidney and it is reasonably supposed to be possibly carcinogenic to humans. For that reasons more stringent regulations of chlorinated volatile organic compounds (CVOCs) emissions by EU are required and more efforts are needed to reduce these dangerous emissions. However, CVOCs abatement from emissions is much more difficult to carry out than VOCs abatement - in general, higher temperatures (above 450°C) are required for total CVOCs oxidation in industrial oxidation units. Catalytic oxidation represents the cost-efficient and environmentally acceptable way how to reduce CVOCs emissions. However, since emissions limits are increasingly stringent, the development of highly-efficient (i.e. more selective, active as well as durable) catalysts for the CVOCs abatement is still a matter of keen scientific research. Noble metals (i.e. Pt, Pd, Rh) supported metal oxide catalysts have been preferred in oxidation of low molecular weight CVOCs due to their stability and high activity. On the other hand, metal oxides (vanadia-, magnesia-, chromia- and copper(II) oxide based catalysts) are cheaper and should be more resistant against Cl-poisoning. In this study Pt and Pd supported TiO2-ZrO2 catalysts with various Ti:Zr molar ratios were synthesized, characterized and investigated in the total oxidation of dichloromethane in moist conditions. The aim was to reveal the best combination of noble metal (Pt versus Pd) and TiO2-ZrO2 support, resulting in the most active and selective TiO2-ZrO2 based catalyst in the DCM oxidation. An attention was also dedicated to the suggestion of possible DCM oxidation mechanism over these types of catalysts.
- Dichloromethane (DCM) belongs among three most commonly used chlorinated solvents in Europe and it is emitted into air mostly as a part of emissions from various industrial processes (e.g. production of pharmaceutics). It acts as a skin and eye irritating agent, repeated or long-term exposure may cause damage to the blood, heart, liver and kidney and it is reasonably supposed to be possibly carcinogenic to humans. For that reasons more stringent regulations of chlorinated volatile organic compounds (CVOCs) emissions by EU are required and more efforts are needed to reduce these dangerous emissions. However, CVOCs abatement from emissions is much more difficult to carry out than VOCs abatement - in general, higher temperatures (above 450°C) are required for total CVOCs oxidation in industrial oxidation units. Catalytic oxidation represents the cost-efficient and environmentally acceptable way how to reduce CVOCs emissions. However, since emissions limits are increasingly stringent, the development of highly-efficient (i.e. more selective, active as well as durable) catalysts for the CVOCs abatement is still a matter of keen scientific research. Noble metals (i.e. Pt, Pd, Rh) supported metal oxide catalysts have been preferred in oxidation of low molecular weight CVOCs due to their stability and high activity. On the other hand, metal oxides (vanadia-, magnesia-, chromia- and copper(II) oxide based catalysts) are cheaper and should be more resistant against Cl-poisoning. In this study Pt and Pd supported TiO2-ZrO2 catalysts with various Ti:Zr molar ratios were synthesized, characterized and investigated in the total oxidation of dichloromethane in moist conditions. The aim was to reveal the best combination of noble metal (Pt versus Pd) and TiO2-ZrO2 support, resulting in the most active and selective TiO2-ZrO2 based catalyst in the DCM oxidation. An attention was also dedicated to the suggestion of possible DCM oxidation mechanism over these types of catalysts. (en)
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Title
| - Dichloromethane oxidation over noble metals supported TiO2-based catalysts
- Dichloromethane oxidation over noble metals supported TiO2-based catalysts (en)
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skos:prefLabel
| - Dichloromethane oxidation over noble metals supported TiO2-based catalysts
- Dichloromethane oxidation over noble metals supported TiO2-based catalysts (en)
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skos:notation
| - RIV/61989100:27640/13:86087730!RIV14-MSM-27640___
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/61989100:27640/13:86087730
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - Metal oxides; Palladium; Platinum; Total oxidation; CVOC; Dichloromethane (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...ontrolniKodProRIV
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http://linked.open...v/mistoKonaniAkce
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http://linked.open...i/riv/mistoVydani
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http://linked.open...i/riv/nazevZdroje
| - Clean air research at the University of Oulu : proceedings of the 2nd SkyPro Conference : November 12th 2013, University of Oulu, Finland
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...vavai/riv/projekt
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http://linked.open...UplatneniVysledku
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http://linked.open...iv/tvurceVysledku
| - Matějová, Lenka
- Kukutschová, Jana
- Keiski, Riitta L.
- Pitkäaho, Satu
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http://linked.open...vavai/riv/typAkce
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http://linked.open.../riv/zahajeniAkce
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number of pages
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http://purl.org/ne...btex#hasPublisher
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https://schema.org/isbn
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http://localhost/t...ganizacniJednotka
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