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@ARTICLE{Heggen:825923,
author = {Heggen, Marc and Penner, Simon and Friedrich, Matthias and
Dunin-Borkowski, Rafal and Armbrüster, Marc},
title = {{F}ormation of {Z}n{O} {P}atches on {Z}n{P}d/{Z}n{O} during
{M}ethanol {S}team {R}eforming: {A} {S}trong
{M}etal-{S}upport {I}nteraction {E}ffect?},
journal = {The journal of physical chemistry / C},
volume = {120},
number = {19},
issn = {1932-7455},
address = {Washington, DC},
publisher = {Soc.},
reportid = {FZJ-2017-00202},
pages = {10460 - 10465},
year = {2016},
abstract = {The high CO2 selectivity of ZnPd/ZnO, an outstanding
catalyst in methanol steam reforming, was recently
attributed to the interaction between small ZnO patches and
ZnPd particles. Yet, the detailed microstructure of this
catalytic system and the formation mechanism of the ZnO
patches inducing the high catalytic selectivity are unknown.
In this work, we uncover the formation mechanism of ZnO
patches using aberration-corrected electron microscopy,
electron energy loss spectroscopy, X-ray spectroscopy, and
in situ heating experiments. We show that Zn-rich regions in
chemically inhomogeneous ZnPd particles, penetrating the
particle surface, are capped by ZnO. It is demonstrated that
the ZnO patches form by direct oxidation of the particles
rather than by transport from the ZnO substrate, thus ruling
out a classical strong metal–support interaction (SMSI).},
cin = {PGI-5},
ddc = {540},
cid = {I:(DE-Juel1)PGI-5-20110106},
pnm = {143 - Controlling Configuration-Based Phenomena (POF3-143)},
pid = {G:(DE-HGF)POF3-143},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000376417500038},
doi = {10.1021/acs.jpcc.6b02562},
url = {https://juser.fz-juelich.de/record/825923},
}