Ozone decomposition on ZnO catalysts obtained from different precursors

• Autorzy: Milenova Katya I. , Nikolov Penko M. , Kasabova Nikoleta A. , Avramova Ivalina A.

Identyfikatory

DOI

10.2478/pjct-2014-0070

• Języki publikacji: EN

Abstrakty

EN

Kinetic investigations for ozone conversion on three different series of zinc oxide catalysts, containing pure ZnO and doped with Mn or Cu one with dopant content less than 1 wt.% were carried out. The different samples were obtained from carbonate, nitrate and acetate precursors. The as prepared catalysts were characterized by AAS, XRD, IR, EPR and BET methods. The mean size of the crystallites determined by XRD data is in the range 27÷68 nm. The presence of Mn²⁺ and Cu²⁺ ions into the ZnO matrix was established by EPR. The ozone decomposition was investigated for 30÷75°C temperature range. The zinc carbonate precursor samples show highest activity, while the nitrate precursor ones show lowest activity toward reaction decomposition of ozone in the whole temperature range. At 75°C two of the catalyst, obtained from carbonate precursor - ZnO and CuZnO show 100% conversion.

Słowa kluczowe

EN

ozone decomposition; zinc oxide catalyst; manganese doping; copper doping; nanosize

• Wydawca: West Pomeranian University of Technology. Publishing House
• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2014
• Tom: Vol. 16, nr 4
• Strony: 55--59
• Opis fizyczny: Bibliogr. 24 poz., rys., tab.

Twórcy

autor

Milenova Katya I.

• Bulgarian Academy of Sciences, Institute of Catalysis, Acad. G. Bonchev Str., bl 11, Sofi a 1113, Bulgaria

autor

Nikolov Penko M.

• University of Chemical Technology and Metallurgy, 8 Kliment Ohridski, 1756, Sofi a, Bulgaria

autor

Kasabova Nikoleta A.

• University of Chemical Technology and Metallurgy, 8 Kliment Ohridski, 1756, Sofi a, Bulgaria

autor

Avramova Ivalina A.

• Bulgarian Academy of Sciences, Institute of General and Inorganic Chemistry, Akad. G. Bontchev str. bl 11, 1113, Sofia, Bulgaria

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