Phosphine chemistry on Mo(110) and oxidized Mo(110)

X. Zhang; A. Linsebigler; U. Heiz; J. T. Yates

doi:10.1021/j100121a038

Phosphine chemistry on Mo(110) and oxidized Mo(110)

X. Zhang, A. Linsebigler, U. Heiz, J. T. Yates

University of Pittsburgh

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4 Scopus citations

Abstract

The adsorption and desorption of phosphine and the oxidation of phosphorus on Mo( 110) and oxidized Mo(110) have been studied by using Auger electron spectroscopy (AES), temperature-programmed desorption (TPD), and low-energy electron diffraction (LEED). Both molecular desorption and dissociative processes were observed on Mo(110), leaving adsorbed P(a) species in a c(4×1) overlayer structure. The P(a) species do not undergo diffusion into the bulk below 1000 K. On the oxidized Mo(110) surface, the phosphine adsorption and dissociation process was inhibited significantly. Phosphorus on the Mo(110) surface could be oxidized to produce PO(g) and PO₂(g) species near 900 K, as detected by line-of-sight mass spectrometry; neither P₂O₃(g) nor P₂O₅(g) was observed.

Original language	English
Pages (from-to)	5074-5079
Number of pages	6
Journal	Journal of Physical Chemistry
Volume	97
Issue number	19
DOIs	https://doi.org/10.1021/j100121a038
State	Published - 1993
Externally published	Yes

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title = "Phosphine chemistry on Mo(110) and oxidized Mo(110)",

abstract = "The adsorption and desorption of phosphine and the oxidation of phosphorus on Mo( 110) and oxidized Mo(110) have been studied by using Auger electron spectroscopy (AES), temperature-programmed desorption (TPD), and low-energy electron diffraction (LEED). Both molecular desorption and dissociative processes were observed on Mo(110), leaving adsorbed P(a) species in a c(4×1) overlayer structure. The P(a) species do not undergo diffusion into the bulk below 1000 K. On the oxidized Mo(110) surface, the phosphine adsorption and dissociation process was inhibited significantly. Phosphorus on the Mo(110) surface could be oxidized to produce PO(g) and PO2(g) species near 900 K, as detected by line-of-sight mass spectrometry; neither P2O3(g) nor P2O5(g) was observed.",

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T1 - Phosphine chemistry on Mo(110) and oxidized Mo(110)

AU - Zhang, X.

AU - Linsebigler, A.

AU - Heiz, U.

AU - Yates, J. T.

PY - 1993

Y1 - 1993

N2 - The adsorption and desorption of phosphine and the oxidation of phosphorus on Mo( 110) and oxidized Mo(110) have been studied by using Auger electron spectroscopy (AES), temperature-programmed desorption (TPD), and low-energy electron diffraction (LEED). Both molecular desorption and dissociative processes were observed on Mo(110), leaving adsorbed P(a) species in a c(4×1) overlayer structure. The P(a) species do not undergo diffusion into the bulk below 1000 K. On the oxidized Mo(110) surface, the phosphine adsorption and dissociation process was inhibited significantly. Phosphorus on the Mo(110) surface could be oxidized to produce PO(g) and PO2(g) species near 900 K, as detected by line-of-sight mass spectrometry; neither P2O3(g) nor P2O5(g) was observed.

AB - The adsorption and desorption of phosphine and the oxidation of phosphorus on Mo( 110) and oxidized Mo(110) have been studied by using Auger electron spectroscopy (AES), temperature-programmed desorption (TPD), and low-energy electron diffraction (LEED). Both molecular desorption and dissociative processes were observed on Mo(110), leaving adsorbed P(a) species in a c(4×1) overlayer structure. The P(a) species do not undergo diffusion into the bulk below 1000 K. On the oxidized Mo(110) surface, the phosphine adsorption and dissociation process was inhibited significantly. Phosphorus on the Mo(110) surface could be oxidized to produce PO(g) and PO2(g) species near 900 K, as detected by line-of-sight mass spectrometry; neither P2O3(g) nor P2O5(g) was observed.

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JO - Journal of Physical Chemistry

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Phosphine chemistry on Mo(110) and oxidized Mo(110)

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