Spin trapping of hydroxyl radicals on Cu/HY zeolites suspended in aqueous solution

Spin trapping of hydroxyl radicals on Cu/HY zeolites suspended in aqueous solution

Hydroxyl radical intermediates are trapped in calcined Cu/HY zeolites in the presence of oxygen and water. This suggests that hydrogen peroxide is formed in situ from oxygen. Brønsted acids enhance the formation of the radicals.

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Bibliographische Detailangaben
Veröffentlicht in:Chemical communications (Cambridge, England) England), 2011-01, Vol.47 (24), p.6954-6956
Hauptverfasser: Häusser, Anette, Trautmann, Martin, Roduner, Emil
Format: Artikel
Sprache:eng
Schlagworte:
Aqueous solutions
Copper
Hydrogen peroxide
Hydroxyl radicals
Radicals
Roasting
Trapping
Zeolites
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Beschreibung
Zusammenfassung:Hydroxyl radical intermediates are trapped in calcined Cu/HY zeolites in the presence of oxygen and water. This suggests that hydrogen peroxide is formed in situ from oxygen. Brønsted acids enhance the formation of the radicals.
ISSN:1359-7345
1364-548X
DOI:10.1039/c1cc11181g