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Effects of support on hydrogen adsorption/desorption on nickel

Paper ID Volume ID Publish Year Pages File Format Full-Text
43216 45958 2008 9 PDF Available
Title
Effects of support on hydrogen adsorption/desorption on nickel
Abstract

The effects of alumina, silica and carbon on hydrogen adsorption on nickel were studied by the temperature-programmed desorption (TPD) method. The examinations were carried out in the flow system, starting TP measurement at 100 K, which resulted in the formation of complete characteristics of the interaction of hydrogen with supported nickel. The examinations have shown that each support modifies in its own way the state of hydrogen adsorbed on nickel. Alumina and silica insignificantly affect hydrogen strongly adsorbed on nickel, but significantly affect hydrogen weakly adsorbed; in particular, the effect of silica depends qualitatively on the way of preparation of the examined sample. Carbon affects significantly both strongly and weakly adsorbed hydrogen.

Graphical abstractThe effects of alumina, silica and carbon on hydrogen adsorption on nickel were studied by the temperature-programmed desorption (TPD) method. The examinations were carried out in the flow system, starting TP measurement at 100 K, which resulted in the formation of complete characteristics of the interaction of hydrogen with supported nickel. The examinations have shown that each support modifies in its own way the state of hydrogen adsorbed on nickel.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Hydrogen adsorption; Hydrogen desorption; Hydrogen on nickel; TPD examination; Effect of support
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 334, Issues 1–2, 1 January 2008, Pages 268–276
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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