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Temperature-programmed desorption studies of methanol and formic acid decomposition on copper oxide surfaces

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Abstract

We have obtained temperature-programmed desorption data for methanol and formic acid adsorption on bulk powders of CuO and Cu2O. Methanol adsorption on CuO at 300 K results in CO2, H2 and H2O desorption at 550 K indicating formate decomposition; this decomposition temperature is very close to that obtained from the decomposition of formate produced by formic acid adsorption. No significant desorption was observed from vacuum-annealed Cu2O following exposure to methanol due to the formation of a copper metal film at the surface. However, formic acid was adsorbed on this surface decomposing at significantly lower temperature, 485 K, than on CuO.

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Authors and Affiliations

  1. Department of Chemistry, University of Reading, Whiteknights, Reading, RG6 6AD, UK

    S. Poulston, E. Rowbotham, P. Stone, P. Parlett & M. Bowker

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  1. S. Poulston
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  2. E. Rowbotham
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  3. P. Stone
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  4. P. Parlett
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  5. M. Bowker
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Poulston, S., Rowbotham, E., Stone, P. et al. Temperature-programmed desorption studies of methanol and formic acid decomposition on copper oxide surfaces. Catalysis Letters 52, 63–67 (1998). https://doi.org/10.1023/A:1019007100649

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