Hydrogen sorption mechanism of oxidized nickel clusters

A. Borgschulte; R. J. Westerwaal; J. H. Rector; B. Dam; R. Griessen

doi:10.1063/1.1828592

Hydrogen sorption mechanism of oxidized nickel clusters

A. Borgschulte^*, R. J. Westerwaal, J. H. Rector, B. Dam, R. Griessen

^*Corresponding author for this work

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Abstract

Using an optical technique to measure hydrogen sorption kinetics the catalytic activity of the NiOx clusters is determined. The thus measured temperature dependence reveals an activation energy of 0.58 eV. The catalytic activity of NiOx clusters is studied as a function of the oxygen concentration. The surface properties are analyzed by Auger-electron spectroscopy. It appears that the catalytic hydrogen sorption originates from the dissociative chemisorption of hydrogen on O: Ni, which is strongly suppressed by the presence of oxides.

Original language	English
Pages (from-to)	4884-4886
Number of pages	3
Journal	Applied Physics Letters
Volume	85
Issue number	21
DOIs	https://doi.org/10.1063/1.1828592
Publication status	Published - Nov 2004

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title = "Hydrogen sorption mechanism of oxidized nickel clusters",

abstract = "Using an optical technique to measure hydrogen sorption kinetics the catalytic activity of the NiOx clusters is determined. The thus measured temperature dependence reveals an activation energy of 0.58 eV. The catalytic activity of NiOx clusters is studied as a function of the oxygen concentration. The surface properties are analyzed by Auger-electron spectroscopy. It appears that the catalytic hydrogen sorption originates from the dissociative chemisorption of hydrogen on O: Ni, which is strongly suppressed by the presence of oxides.",

author = "A. Borgschulte and Westerwaal, {R. J.} and Rector, {J. H.} and B. Dam and R. Griessen",

year = "2004",

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doi = "10.1063/1.1828592",

language = "English",

volume = "85",

pages = "4884--4886",

journal = "Applied Physics Letters",

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T1 - Hydrogen sorption mechanism of oxidized nickel clusters

AU - Borgschulte, A.

AU - Westerwaal, R. J.

AU - Rector, J. H.

AU - Dam, B.

AU - Griessen, R.

PY - 2004/11

Y1 - 2004/11

N2 - Using an optical technique to measure hydrogen sorption kinetics the catalytic activity of the NiOx clusters is determined. The thus measured temperature dependence reveals an activation energy of 0.58 eV. The catalytic activity of NiOx clusters is studied as a function of the oxygen concentration. The surface properties are analyzed by Auger-electron spectroscopy. It appears that the catalytic hydrogen sorption originates from the dissociative chemisorption of hydrogen on O: Ni, which is strongly suppressed by the presence of oxides.

AB - Using an optical technique to measure hydrogen sorption kinetics the catalytic activity of the NiOx clusters is determined. The thus measured temperature dependence reveals an activation energy of 0.58 eV. The catalytic activity of NiOx clusters is studied as a function of the oxygen concentration. The surface properties are analyzed by Auger-electron spectroscopy. It appears that the catalytic hydrogen sorption originates from the dissociative chemisorption of hydrogen on O: Ni, which is strongly suppressed by the presence of oxides.

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U2 - 10.1063/1.1828592

DO - 10.1063/1.1828592

M3 - Article

AN - SCOPUS:19344372102

SN - 0003-6951

VL - 85

SP - 4884

EP - 4886

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 21

ER -

Hydrogen sorption mechanism of oxidized nickel clusters

Abstract

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