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Photoluminescence properties of La2O3 methane coupling catalysts

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Abstract

La2O3 catalysts prepared at 923 K (La2O3-LT) and 1073 K (La2O3-HT) exhibit different photoluminescence properties due to notably different concentrations of ions in position of low coordination at the surface or coordinatively unsaturated surface sites (cus). The catalyst which exhibits the higher yields of photoluminescence due to the higher concentration of cus corresponds to the one which gives the higher C2+ selectivity in the oxidative methane coupling reaction.

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Authors and Affiliations

  1. Department of Applied Chemistry, University of Osaka Prefecture, Sakai, 593, Osaka, Japan

    Raymonde Franck, Nobuaki Negishi, Sang-Chul Moon & Masakazu Anpo

  2. Laboratoire de Réactivité de Surface, Université Pierre et Marie Curie, URA 1106-CNRS, 75252, Paris Cedex 05, France

    Jean-Michel Tatibouët & Michel Che

Authors
  1. Raymonde Franck
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  2. Nobuaki Negishi
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  3. Sang-Chul Moon
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  4. Masakazu Anpo
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  5. Jean-Michel Tatibouët
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  6. Michel Che
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Additional information

On leave of absence from Laboratoire de Réactivité de Surface, Université Pierre et Marie Curie, URA 1106-CNRS, 75252 Paris Cedex, France.

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Franck, R., Negishi, N., Moon, SC. et al. Photoluminescence properties of La2O3 methane coupling catalysts. Top Catal 3, 115–120 (1996). https://doi.org/10.1007/BF02431181

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