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Cited by 388

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Heterogeneous Catalysis on Atomically Dispersed Supported Metals: CO2 Reduction on Multifunctional Pd Catalysts

Kwak, Ja Hun, Kovarik, Libor, Szanyi, János·2013·ACS Catalysis

Abstract

Because of their heterogeneous nature, supported metal catalysts always contain metal centers in a rather broad dispersion range, and the presence of even atomically dispersed metals has been reported on oxide supports. The role of the atomically dispersed metal centers in the overall catalytic performances of these supported metal catalysts, however, has not been addressed to date. In this study, temperature programmed reaction and scanning transmission electron microscopy experiments were applied to show the fundamentally different reactivity patterns exhibited by Pd metal in atomically dispersed and traditional 3D clusters in the demanding reaction of CO 2 reduction. The requirement for two different catalyst functionalities in the reduction of CO 2 with hydrogen on Pd/Al 2 O 3 and Pd/MWCNT catalysts was also substantiated. The results obtained clearly show that the oxide support material, even when it is considered inert like Al 2 O 3, can function as a critical, active component of complex catalyst systems.

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Metadata

Authors
Kwak, J. H., Kovarik, L., & Szanyi, J.
Venue
ACS Catalysis
Published
2013-08-16
Volume
3
Issue
9
Pages
2094-2100
ISSN
2155-5435 (ISSN-L)
OpenAlex
W2323239271
Cited by
388
References
2
FWCI
6.07
Type
journal article
Language
en
Open access
closed

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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