Transition from atomic to molecular adsorption of oxygen on tungsten monomer anion
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Using vibrationally resolved ultraviolet photoelectron spectroscopy, we studied oxygen adsorption on W monomer anions. Three oxygen atoms are atomically bound in a WO-3 compound, whereas in WO-4 the fourth oxygen atom is attached to the oxygen, forming a di-oxygen species, implying that atom to molecule transition of O2 takes place when the number of oxygen atoms attached to a W monomer anion exceeds three. Our results indicate that molecular adsorption of oxygen is preferred on electron-deficient metals, showing that the driving force of the atom to molecule transition for the chemisorption of diatomic molecules can be the variations of electronic structures of metal hosts.
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STOLCIC, Davor, Young Dok KIM, Gerd GANTEFĂ–R, 2004. Transition from atomic to molecular adsorption of oxygen on tungsten monomer anion. In: Journal of Chemical Physics. 2004, 120(1), pp. 5-7. Available under: doi: 10.1063/1.1635814BibTex
@article{Stolcic2004Trans-4888, year={2004}, doi={10.1063/1.1635814}, title={Transition from atomic to molecular adsorption of oxygen on tungsten monomer anion}, number={1}, volume={120}, journal={Journal of Chemical Physics}, pages={5--7}, author={Stolcic, Davor and Kim, Young Dok and Ganteför, Gerd} }
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