X-ray photoelectron studies of the reaction of clean metals (Mg, Al, Cr, Mn) with oxygen and water vapour

Fuggle, J. C.; Watson, L. M.; Fabian, D.J.; Affrossman, S.

doi:10.1016/0039-6028(75)90328-3

Cited by 202 publications

(24 citation statements)

References 14 publications

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“…XPS measurements presented in this section add support to many of the conclusions obtained from EELS experiments. 18 This result from XPS also is consistent with our EELS results, which suggest that hydroxyl groups are in significant concentration on FeAl(110) at 173 K. Various spectral changes occur in these XPS spectra as the temperature is increased.…”

Section: Xps Of H 2 O/feal(110)supporting

confidence: 90%

Water Adsorption and Thermal Decomposition on FeAl(110)

Gleason

Strongin

1996

J. Phys. Chem.

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H 2 O chemistry on FeAl(110) has been investigated with temperature-programmed desorption (TPD), photoelectron spectroscopy, and high-resolution electron energy loss spectroscopy (EELS). Exposure of FeAl-(110) to water at 123 K results in predominantly dissociative adsorption (i.e., H 2 O f OH (ad) + H (ad) ), although molecularly adsorbed H 2 O is also detected. All, or at least the majority, of the adsorbed H 2 O converts to adsorbed OH (ad) by 173 K. Photoemission suggests that the atomic composition of the OH (ad) binding site is primarily Al. Substantial decomposition of the OH (ad) adlayer occurs by 300 K, and the majority of this species dissociates by 410 K. Atomic oxygen resulting from OH decomposition (i.e., OH (ad) f O (ad) + H (ad) ) remains on the surface as aluminum oxide, and surface hydrogen combines and desorbs as H 2 in the 200-400 K temperature range. This later reaction step is thought to be strongly influenced by the Fe component of the alloy.

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Section: Xps Of H 2 O/feal(110)supporting

confidence: 90%

Water Adsorption and Thermal Decomposition on FeAl(110)

Gleason

Strongin

1996

J. Phys. Chem.

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“…If water vapor is present in air, a more stable hydrated oxide (containing hydroxyl or hydroxide species) will be formed on Mg (Alves et al, 2001;Fuggle et al, 1975;Peng and Barteau, 1990). To date, the naturally formed surface film on pure Mg is not yet well understood.…”

Section: Composition and Microstructurementioning

confidence: 99%

Corrosion electrochemistry of magnesium (Mg) and its alloys

Song

2011

Corrosion of Magnesium Alloys

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“…The 948.4 eV and 950 eV peaks correspond to Mg hydroxide and Mg oxide, respectively. [15,16] Both Mg(2s) and Mg(2p) core levels also exhibit new high-binding energy components. The 95.1 eV Mg(2p) component is wider than the unreacted bulk component, presumably because of multiple binding configurations in the inhomogeneous oxide layer.…”

Section: Role Of Electrode Contamination In Electronmentioning

confidence: 99%