Alkali hydroxide-modified Ru/γ-Al2O3 catalysts for ammonia decomposition

Bajus S, Agel F, Kusche MM, Ní Bhriain N, Wasserscheid P (2016)

Publication Type: Journal article

Publication year: 2016

Journal

Applied Catalysis A-General Elsevier

Book Volume: 510

Pages Range: 189-195

DOI: 10.1016/j.apcata.2015.11.024

Abstract

We herein present an easy approach to increase drastically the catalytic activity of Ru/\textgreekg-Al2O3 catalysts in ammonia decomposition by surface modification with alkali hydroxides. The best activities have been achieved by a catalyst modification with lithium hydroxide in a Li/Al ratio of 1.7. In contrast, coatings with potassium and caesium hydroxide caused mass transfer limitations in the catalytic material already at low amounts (ratios alkali/Al <0.2--0.3). MAS ssNMR and XRD studies indicate the in-situ formation of alkali aluminates resulting in a basic modification of the support.

Authors with CRIS profile

Stephanie Bajus Lehrstuhl für Chemische Reaktionstechnik Friederike Agel Lehrstuhl für Chemische Reaktionstechnik Matthias Manfred Kusche Lehrstuhl für Chemische Reaktionstechnik Nollaig Ní Bhriain Lehrstuhl für Chemische Reaktionstechnik Peter Wasserscheid Lehrstuhl für Chemische Reaktionstechnik

Additional Organisation(s)

Exzellenz-Cluster Engineering of Advanced Materials

How to cite

APA:

Bajus, S., Agel, F., Kusche, M.M., Ní Bhriain, N., & Wasserscheid, P. (2016). Alkali hydroxide-modified Ru/γ-Al2O3 catalysts for ammonia decomposition. Applied Catalysis A-General, 510, 189-195. https://dx.doi.org/10.1016/j.apcata.2015.11.024

MLA:

Bajus, Stephanie, et al. "Alkali hydroxide-modified Ru/γ-Al2O3 catalysts for ammonia decomposition." Applied Catalysis A-General 510 (2016): 189-195.

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