Sie befinden Sich nicht im Netzwerk der Universität Paderborn. Der Zugriff auf elektronische Ressourcen ist gegebenenfalls nur via VPN oder Shibboleth (DFN-AAI) möglich. mehr Informationen...
Conversion of Methane to Methanol: Nickel, Palladium, and Platinum (d9) Cations as Catalysts for the Oxidation of Methane by Ozone at Room Temperature
Ist Teil von
Chemistry : a European journal, 2010-10, Vol.16 (38), p.11605-11610
Ort / Verlag
Weinheim: WILEY-VCH Verlag
Erscheinungsjahr
2010
Quelle
Wiley-Blackwell Journals
Beschreibungen/Notizen
The room‐temperature chemical kinetics has been measured for the catalytic activity of Group 10 atomic cations in the oxidation of methane to methanol by ozone. Ni+ is observed to be the most efficient catalyst. The complete catalytic cycle with Ni+ is interpreted with a computed potential energy landscape and, in principle, has an infinite turnover number for the oxidation of methane, without poisoning side reactions. The somewhat lower catalytic activity of Pd+ is reported for the first time and also explored with DFT calculations. Pt+ is seen to be ineffective as a catalyst because of the observed failure of PtO+ to convert methane to methanol.
Nickel is the best: The catalytic activity of M+ (M=Ni, Pd and Pt) in the oxidation of methane to methanol by ozone has been studied both experimentally and computationally. Ni+ is found to be the most efficient catalyst. The complete catalytic cycle with Ni+ has no poisoning side reactions and so proceeds, in principle, with an infinite turnover number.