Formation of a new type of chromium oxide by deposition of chromium onto water precovered Cu(1 1 1)

Pantförder J, Domnick R, Ammon C, Held G, Steinrück HP (2001)


Publication Type: Journal article

Publication year: 2001

Journal

Original Authors: Pantförder J., Domnick R., Ammon Ch., Held G., Steinrück H.-P.

Publisher: Elsevier

Book Volume: 480

Pages Range: 73-83

DOI: 10.1016/S0039-6028(01)01001-9

Abstract

Thin chromiumoxide layers (Θ up to 10 ML) on Cu(1 1 1) were produced by evaporating chromium onto multilayers of water (DO) at 120 K. Their composition and structure were studied by X-ray photoelectron spectroscopy, low-energy electron diffraction and temperature programmed desorption. Annealing the sample to 750 K leads to a new type of chromium oxide CrO with a square two-dimensional lattice and a lattice constant of 2.70 Å. It is stable upon heating up to 950 K. Further oxidation of this oxide layer in an oxygen atmosphere of 10 mbar leads to the formation of α-CrO oriented with its hexagonal (0 0 0 1) plane parallel to the surface. Adsorption/desorption experiments show that the square oxide surface is essentially unable to adsorb CO at 90 K which is in contrast to the hexagonal α-CrO surface. © 2001 Elsevier Science B.V.

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How to cite

APA:

Pantförder, J., Domnick, R., Ammon, C., Held, G., & Steinrück, H.-P. (2001). Formation of a new type of chromium oxide by deposition of chromium onto water precovered Cu(1 1 1). Surface Science, 480, 73-83. https://doi.org/10.1016/S0039-6028(01)01001-9

MLA:

Pantförder, Jörg, et al. "Formation of a new type of chromium oxide by deposition of chromium onto water precovered Cu(1 1 1)." Surface Science 480 (2001): 73-83.

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