Characterization of K-Promoted Ru Catalysts for Ammonia Decomposition Discovered Using High-Throughput Experimentation

Document Type


Subject Area(s)

Engineering, Chemical Engineering, Catalysis and Reaction Engineering


We obtain H2 from low temperature NH3 decomposition using a new hollandite (KRu4O8) catalyst supported on γ-Al2O3 discovered using high-throughput experimentation and advanced TEM/SEM characterization. Relative to the base Ru° catalyst, this new catalyst shows NH3 conversion enhancements of 30–50% at T = 350 °C and decomposition activity at temperatures decreased by 50–100 °C. TEM analysis over the lifetime of the catalyst shows multiple phases and morphologies suggesting that the KRu4O8 behaves either as a new low-temperature decomposition catalyst or as a precursor to the active catalyst.

Digital Object Identifier (DOI)


© Topics in Catalysis, 2008, Springer-Verlag

APA Citation

Pyrz, W., Vijay, R., Binz, J., Lauterbach, A.J., Buttrey, J.D. (2008). Characterization of K-promoted Ru catalysts for ammonia decomposition discovered using high-throughput experimentation. Topics in Catalysis, 50(1), 180-191.