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Catalytic properties of PdZn/ZnO in formic acid decomposition for hydrogen production

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Show simple item record Bulushev, Dmitri A. Zacharska, Monika Beloshapkin, Sergey Guo, Yina Yuranov, Igor 2018-06-25T15:38:42Z 2018
dc.description peer-reviewed en_US
dc.description The full text of this article will not be available in ULIR until the embargo expires on the 24/05/2020
dc.description.abstract This is one of the first reports, which is related to hydrogen production through formic acid decomposition over Pd/ZnO catalysts widely used for methanol steam-reforming. These catalysts have been investigated in comparison with Pt/ZnO and Pd/Al2O3 catalysts as well as ZnO support. HAADF/STEM, XRD, XPS and DRIFTS in situ studies of the systems were performed. The measured catalyst activity corresponds to the following order: Pd/Al2O3≥Pd/ZnO>Pt/ZnO>ZnO. Among the studied catalysts, Pd/ZnO showed the highest selectivity to hydrogen (up to 99.3%). This was assigned to the formation of a PdZn alloy during the reductive pre-treatment of the catalyst. An increase of the pre-treatment temperature from 573 to 773 K led to a significant increase of the mean PdZn (PtZn) nanoparticle size. However, the catalyst activity did not change, but the selectivity to hydrogen increased. These features closely remind the behavior of Pd/ZnO catalysts in methanol steam reforming implying that the mechanism of formic acid decomposition involves the same key steps and active sites. en_US
dc.language.iso eng en_US
dc.publisher Elsevier en_US
dc.relation.ispartofseries Applied Catalysis A: General;561, pp. 96-103
dc.rights This is the author’s version of a work that was accepted for publication in Applied Catalysis A: General . Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Applied Catalysis A: General, 2018, 561, pp. 96-103, en_US
dc.subject Pd/ZnO catalyst en_US
dc.subject Pt/ZnO catalyst en_US
dc.subject PdZn alloy en_US
dc.subject formic acid decomposition en_US
dc.subject hydrogen en_US
dc.title Catalytic properties of PdZn/ZnO in formic acid decomposition for hydrogen production en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.identifier.doi 10.1016/j.apcata.2018.05.025 2020-05-24
dc.embargo.terms 2020-05-24 en_US
dc.rights.accessrights info:eu-repo/semantics/embargoedAccess en_US

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