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The mechanism for NOx storage

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Abstract

The mechanisms for storing of NOx in platinum–barium–alumina catalysts during lean–rich transients are investigated. Oxidation of NO to NO2 is found to be an important step. NO2 is found to be important for oxidation of the catalyst or of nitrites to form nitrates. NOx is then stored in the form of surface nitrates. FTIR studies show no formation of bulk nitrates in these experiments.

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Authors and Affiliations

  1. Competence Centre for Catalysis, Chalmers University of Technology, SE 412 96, Göteborg, Sweden

    Erik Fridell, Hans Persson, Björn Westerberg, Louise Olsson & Magnus Skoglundh

Authors
  1. Erik Fridell
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  2. Hans Persson
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  3. Björn Westerberg
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  4. Louise Olsson
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  5. Magnus Skoglundh
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Fridell, E., Persson, H., Westerberg, B. et al. The mechanism for NOx storage. Catalysis Letters 66, 71–74 (2000). https://doi.org/10.1023/A:1019074901578

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