TPD Study of Carbon Monoxide Interaction with Pd/Nb Bimetallic System

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Title:TPD Study of Carbon Monoxide Interaction with Pd/Nb Bimetallic System
Creators:
Jirsak, Tomas
Nikolajenko, Vladimír
Knor, Zlatko
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 59, 8, pp. 1709-1720

Abstract

<p>Chemisorption properties of thin films of Pd evaporated onto Nb recrystallized-foil surface have been studied by temperature-programmed desorption (TPD) and by measurement of the work function changes (WFC) at room temperature. TPD results indicate two states of CO adsorbed in dependence on the thickness of the palladium layer. The low temperature state (330 K) occurs at low Pd coverages (about one monolayer). Second state, occurring at slightly higher temperature (370 K), is attributed to bulk Pd. WFC data show negligible change of the work function after deposition of small amounts of Pd onto a clean Nb surface. With increasing amount of Pd, ∆ϕ rises and reaches a saturation value. Adsorption of CO onto Pd/Nb surface caused the work function increase at all coverages of Pd deposited.

Title:TPD Study of Carbon Monoxide Interaction with Pd/Nb Bimetallic System
Creators:
Jirsak, Tomas
Nikolajenko, Vladimír
Knor, Zlatko
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:59
Number:8
Page Range:pp. 1709-1720
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc19941709UNSPECIFIED
ID Code:594
Item Type:Article
Deposited On:06 Feb 2009 17:02
Last Modified:06 Feb 2009 16:02

Citation

Jirsak, Tomas; Nikolajenko, Vladimír; Knor, Zlatko (1994) TPD Study of Carbon Monoxide Interaction with Pd/Nb Bimetallic System. Collection of Czechoslovak Chemical Communications, 59 (8). pp. 1709-1720. ISSN 0010-0765

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