, Volume 52, Issue 1-2, pp 63-67

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.

This revised version was published online in July 2006 with corrections to the Cover Date.