TY  - JOUR
AU  - Thalinger, Ramona
AU  - Gocyla, Martin
AU  - Heggen, Marc
AU  - Dunin-Borkowski, Rafal
AU  - Grünbacher, Matthias
AU  - Stöger-Pollach, Michael
AU  - Schmidmair, Daniela
AU  - Klötzer, Bernhard
AU  - Penner, Simon
TI  - Ni–perovskite interaction and its structural and catalytic consequences in methane steam reforming and methanation reactions
JO  - Journal of catalysis
VL  - 337
SN  - 0021-9517
CY  - Amsterdam [u.a.]
PB  - Elsevier
M1  - FZJ-2016-07838
SP  - 26 - 35
PY  - 2016
AB  - Metal–support interaction effects and their consequences in CO2/CO methanation and methane steam reforming have been exemplarily studied on two complex Ni–perovskite powder catalyst systems, namely Ni–La0.6Sr0.4FeO3−δ (lanthanum strontium ferrite, LSF) and Ni–SrTi0.7Fe0.3O3−δ (strontium titanium ferrite, STF). Pre-reduction in hydrogen and treatment in catalytic gas mixtures cause a variety of structural effects, including exsolution of iron particles and formation of Ni–Fe alloy particles. These manifestations strongly depend on the reducibility of the perovskite and are hence much more pronounced on LSF. Reactivity differences are strongly influenced by the chemical properties of the respective perovskite support. The more reducible the perovskite support, the stronger the deviation from the catalytic behavior of a Ni/Al2O3 reference catalyst, rendering establishments of direct structure–activity/selectivity relationships difficult. The studies show the extreme variety of the metal–perovskite interface, which helps in judging similar systems of recent high catalytic importance, e.g. metals supported on spinel or other perovskite phases.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000374920400003
DO  - DOI:10.1016/j.jcat.2016.01.020
UR  - https://juser.fz-juelich.de/record/825375
ER  -