Adsorption and reaction of formic acid on the Mo(110) and O/Mo(110) surfaces
- Texas A&M Univ., College Station, TX (United States)
The adsorption and reaction of formic acid on clean and oxygen-modified Mo(110) surfaces have been studied using temperature programmed desorption (TPD) and high-resolution electron energy loss spectroscopy (HREELS). The adsorption of formic acid on Mo(110) and oxygen-modified Mo(110) surfaces is largely irreversible. Only about 30% of an adsorbed monolayer desorbs molecularly from the clean and oxygen-modified surfaces. However, the distribution of the decomposition products and the reaction pathways are significantly different on the two surfaces. Formyl species, monodentate and bridge-bonded, are found on both surfaces, with the monodenate promoted by the presence of oxygen, apparently due to a site-blocking effect. A CO{sub 2}{sup {delta}-} species has been identified for the first time as an intermediate in the decomposition of the formate species on the oxygen-modified Mo(110) surface. 41 refs., 11 figs., 3 tabs.
- OSTI ID:
- 199379
- Journal Information:
- Journal of Physical Chemistry, Journal Name: Journal of Physical Chemistry Journal Issue: 5 Vol. 100; ISSN JPCHAX; ISSN 0022-3654
- Country of Publication:
- United States
- Language:
- English
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