Combinatorial method for the development of a catalyst promoting hydrogen uptake

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

doi:10.1016/j.jallcom.2005.01.137

Combinatorial method for the development of a catalyst promoting hydrogen uptake

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

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

33 Citations (Scopus)

Abstract

A novel optical technique to measure catalytic activity for hydrogen sorption is presented. The catalytic activity of the noble metals of Pd, Ni, Cu and Ag is studied as function of pressure and temperature. The uptake rate is limited by chemisorption as deduced by modelling kinetics. An empirical relation between uptake rate and the measured activation energy is given. The catalytic activity of NbO_x is studied as a function of the oxygen concentration determined from electron spectroscopy. The measured activation energy depends strongly on the oxygen concentration and reaches a minimum of 0.6 eV at the highest oxygen content (x=2.5, i.e. Nb₂O₅). Pure Nb does not display a significant catalytic efect.

Original language	English
Pages (from-to)	699-705
Number of pages	7
Journal	Journal of Alloys and Compounds
Volume	404-406
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.jallcom.2005.01.137
Publication status	Published - 8 Dec 2005

Bibliographical note

Funding Information:
The authors are indebted to A. Züttel, University Fribourg, for supporting the XPS measurements. This work is financially supported by the Stichting voor Fundamenteel Onderzoek der Materie (FOM) and the Nederlandse Organisatie voorWetenschappelijk Onderzoek (NWO) through the ACTS program.

Keywords

Gas-solid interaction
Hydrogen storage material
Light absorption
Thin films

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10.1016/j.jallcom.2005.01.137

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title = "Combinatorial method for the development of a catalyst promoting hydrogen uptake",

abstract = "A novel optical technique to measure catalytic activity for hydrogen sorption is presented. The catalytic activity of the noble metals of Pd, Ni, Cu and Ag is studied as function of pressure and temperature. The uptake rate is limited by chemisorption as deduced by modelling kinetics. An empirical relation between uptake rate and the measured activation energy is given. The catalytic activity of NbOx is studied as a function of the oxygen concentration determined from electron spectroscopy. The measured activation energy depends strongly on the oxygen concentration and reaches a minimum of 0.6 eV at the highest oxygen content (x=2.5, i.e. Nb2O5). Pure Nb does not display a significant catalytic efect.",

keywords = "Gas-solid interaction, Hydrogen storage material, Light absorption, Thin films",

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

note = "Funding Information: The authors are indebted to A. Z{\"u}ttel, University Fribourg, for supporting the XPS measurements. This work is financially supported by the Stichting voor Fundamenteel Onderzoek der Materie (FOM) and the Nederlandse Organisatie voorWetenschappelijk Onderzoek (NWO) through the ACTS program.",

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doi = "10.1016/j.jallcom.2005.01.137",

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TY - JOUR

T1 - Combinatorial method for the development of a catalyst promoting hydrogen uptake

AU - Borgschulte, A.

AU - Lohstroh, W.

AU - Westerwaal, R. J.

AU - Schreuders, H.

AU - Rector, J. H.

AU - Dam, B.

AU - Griessen, R.

N1 - Funding Information: The authors are indebted to A. Züttel, University Fribourg, for supporting the XPS measurements. This work is financially supported by the Stichting voor Fundamenteel Onderzoek der Materie (FOM) and the Nederlandse Organisatie voorWetenschappelijk Onderzoek (NWO) through the ACTS program.

PY - 2005/12/8

Y1 - 2005/12/8

N2 - A novel optical technique to measure catalytic activity for hydrogen sorption is presented. The catalytic activity of the noble metals of Pd, Ni, Cu and Ag is studied as function of pressure and temperature. The uptake rate is limited by chemisorption as deduced by modelling kinetics. An empirical relation between uptake rate and the measured activation energy is given. The catalytic activity of NbOx is studied as a function of the oxygen concentration determined from electron spectroscopy. The measured activation energy depends strongly on the oxygen concentration and reaches a minimum of 0.6 eV at the highest oxygen content (x=2.5, i.e. Nb2O5). Pure Nb does not display a significant catalytic efect.

AB - A novel optical technique to measure catalytic activity for hydrogen sorption is presented. The catalytic activity of the noble metals of Pd, Ni, Cu and Ag is studied as function of pressure and temperature. The uptake rate is limited by chemisorption as deduced by modelling kinetics. An empirical relation between uptake rate and the measured activation energy is given. The catalytic activity of NbOx is studied as a function of the oxygen concentration determined from electron spectroscopy. The measured activation energy depends strongly on the oxygen concentration and reaches a minimum of 0.6 eV at the highest oxygen content (x=2.5, i.e. Nb2O5). Pure Nb does not display a significant catalytic efect.

KW - Gas-solid interaction

KW - Hydrogen storage material

KW - Light absorption

KW - Thin films

UR - http://www.scopus.com/inward/record.url?scp=28144453991&partnerID=8YFLogxK

U2 - 10.1016/j.jallcom.2005.01.137

DO - 10.1016/j.jallcom.2005.01.137

M3 - Article

AN - SCOPUS:28144453991

SN - 0925-8388

VL - 404-406

SP - 699

EP - 705

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - SPEC. ISS.

ER -

Combinatorial method for the development of a catalyst promoting hydrogen uptake

Abstract

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Keywords

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