Düll F, Späth F, Bachmann P, Bauer U, Steinrück HP, Papp C (2017)
Publication Language: English
Publication Status: Published
Publication Type: Journal article
Publication year: 2017
Publisher: AMER CHEMICAL SOC
Book Volume: 121
Pages Range: 1734-1741
Journal Issue: 3
Nanocluster arrays on graphene are suitable model systems for catalysis. We use this model system to study sulfur poisoning, which is a major deactivation process of heterogeneous catalysts. Using high-resolution X-ray photoelectron spectroscopy, we investigated the adsorption and desorption of CO on sulfur-poisoned graphene-supported palladium nanoparticles. We find that sulfur blocks CO adsorption sites, with hollow sites being most affected. From the unchanged desorption temperatures, we conclude that the Pd-CO bond strength is not altered by co-adsorbed sulfur. The degree of site blocking compared to the amount of sulfur indicates that the palladium nanoparticle surface is dominated by (111) and (100) facets.
APA:
Düll, F., Späth, F., Bachmann, P., Bauer, U., Steinrück, H.-P., & Papp, C. (2017). Reactivity of CO on Sulfur-Passivated Graphene-Supported Palladium Nanocluster Arrays. Journal of Physical Chemistry C, 121(3), 1734-1741. https://dx.doi.org/10.1021/acs.jpcc.6b11480
MLA:
Düll, Fabian, et al. "Reactivity of CO on Sulfur-Passivated Graphene-Supported Palladium Nanocluster Arrays." Journal of Physical Chemistry C 121.3 (2017): 1734-1741.
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