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Main Title: Präparation und Charakterisierung von SiO2-geträgerten Zirconiumoxidnitriden mit hoher Oberfläche und Untersuchung ihrer katalytischen Aktivität bei der Ammoniakzersetzung
Translated Title: Synthesis, Characterization, and Catalytic Activity of Zirconium Oxide Nitrides Supported on High-surface SiO2
Author(s): Frenzel, Nancy
Otremba, Torsten
Schomäcker, Reinhard
Ressler, Thorsten
Lerch, Martin
Type: Article
Language Code: de
Abstract: Zirconium oxide nitrides are active ammonia decomposition catalysts for the production of hydrogen. We present a route to zirconium oxide nitrides with high surface area. The precursor used consisted of a high-surface-area silica material coated with zirconium alkoxide. Subsequent hydrolysis and calcination resulted in ZrO2 supported on SiO2. The high surface area of the material could be maintained in the following ammonolysis procedure leading to the corresponding zirconium oxide nitride. In contrast to the as-prepared ZrO2, the zirconium oxide nitrides exhibited a significant catalytic activity in ammonia decomposition, but compared to an iron oxide-based reference material, the new oxide nitrides showed a rather low activity. Nevertheless, zirconium oxide nitrides constitute suitable model systems for elucidating the effect of nitrogen in the anion substructure on the activity and selectivity of oxide-based ammonia decomposition catalysts.
Issue Date: 2011
Date Available: 1-Oct-2018
DDC Class: 540 Chemie und zugeordnete Wissenschaften
Subject(s): zirconium oxide nitride
ammonia decomposition
Journal Title: Zeitschrift für Naturforschung B
Publisher: De Gruyter
Publisher Place: Berlin
Volume: 66
Issue: 2
Publisher DOI: 10.1515/znb-2011-0207
Page Start: 147
Page End: 154
EISSN: 1865-7117
ISSN: 0932-0776
Appears in Collections:Inst. Chemie » Publications

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