EVIDENCE FOR PD-X(CO)(Y) COMPOUND FORMATION ON AN ALUMINA SUBSTRATE

Libuda J (1995)


Publication Status: Published

Publication Type: Journal article

Publication year: 1995

Journal

Publisher: ELSEVIER SCIENCE BV

Book Volume: 240

Pages Range: 429-434

Journal Issue: 5-6

Abstract

Although stable binary Pd carbonyls are unknown in the gas phase, we found strong evidence for a stable carbonyl-like Pd compound on an oxide surface: by in situ vapour deposition of Pd at a rate of 2 X 10(13) atoms s(-1) cm(-2) onto an alumina substrate (90 K) at a pressure of 2 X 10(-6) mbar CO, a binary compound of Pd and CO is formed which is stable up to 190 K. As substrate serves a well-ordered aluminium oxide film grown on a NiAl(110) single crystal surface. The system was characterized under UHV (ultrahigh vacuum) conditions by means of TDS, LEED, UPS and XPS in a coverage range between 1.4 X 10(14) Pd atoms cm(-2) and 1.4 X 10(16) Pd atoms cm(-2). The decomposition at 190 K results in the formation of metallic Pd particles and is accompanied by a sharp and dominant feature in the thermal desorption spectra.

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How to cite

APA:

Libuda, J. (1995). EVIDENCE FOR PD-X(CO)(Y) COMPOUND FORMATION ON AN ALUMINA SUBSTRATE. Chemical Physics Letters, 240(5-6), 429-434.

MLA:

Libuda, Jörg. "EVIDENCE FOR PD-X(CO)(Y) COMPOUND FORMATION ON AN ALUMINA SUBSTRATE." Chemical Physics Letters 240.5-6 (1995): 429-434.

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