Manganese oxide OMS-2 as an effective catalyst for total oxidation of ethyl acetate

Autor:	Aditi R. Gandhe, Jeanette S. Rebello, José L. Figueiredo, Julio B. Fernandes
Rok vydání:	2007
Předmět:	Process Chemistry and Technology Inorganic chemistry Ethyl acetate chemistry.chemical_element Manganese engineering.material Heterogeneous catalysis Molecular sieve Redox Catalysis chemistry.chemical_compound chemistry engineering Cryptomelane Selectivity General Environmental Science
Zdroj:	Applied Catalysis B: Environmental. 72:129-135
ISSN:	0926-3373
DOI:	10.1016/j.apcatb.2006.10.017
Popis:	This investigation focuses mainly on the use of a synthetic cryptomelane type manganese octahedral molecular sieve, OMS-2, as a catalyst for the total oxidation of ethyl acetate. OMS-2 was found to be a highly efficient catalyst giving 100% conversion and selectivity to CO2, the final oxidation product. In addition, it was stable with time on stream and resistant to coking. A mechanism is proposed to explain the high selectivity. Presence of Mn4+-O2− Lewis acid–base pairs, ability of Mn to exist as a redox couple, viz. Mn4+/Mn3+ and availability of facile lattice oxygen, seem to facilitate the oxidation process.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4409c77ee5ac5ba0ecbe5ca8de4dd712 https://doi.org/10.1016/j.apcatb.2006.10.017 Zobrazit plný text záznamu Full Text from ScienceDirect