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New efficient catalysts for the oxidative coupling of methane

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Abstract

During calcination of OCM catalyst precursors, Li...Cs spectacularly lower the amorphous silica → α-cristobalite phase transition temperature, shown here to be a critically important requirement for production of effective catalysts. Incorporation of W switches on OCM activity and newly discovered K/W and Rb/W formulations exhibit unsurpassed ethylene selectivity at high methane conversion. Addition of Mn significantly improves the performance of the former. An alkali-stabilised tungsten oxo species is thought to be the OCM active site.

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Authors and Affiliations

  1. Chemistry Department, Cambridge University, Cambridge, CB2 1EW, UK

    Alejandra Palermo, Juan Pedro Holgado Vazquez & Richard M. Lambert

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  1. Alejandra Palermo
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  2. Juan Pedro Holgado Vazquez
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  3. Richard M. Lambert
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Palermo, A., Holgado Vazquez, J.P. & Lambert, R.M. New efficient catalysts for the oxidative coupling of methane. Catalysis Letters 68, 191–196 (2000). https://doi.org/10.1023/A:1019072512423

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