Quantifying oxygen induced surface enrichment of a dilute PdAu alloy catalyst

Karatok, Mustafa; Madix, Robert J.; van der Hoeven, Jessi S.; Aizenberg, Joanna; Reece, Christian

doi:10.1039/d1cy01337h

Quantifying oxygen induced surface enrichment of a dilute PdAu alloy catalyst

Journal Article · Sun Nov 07 23:00:00 EST 2021 · Catalysis Science and Technology

DOI:https://doi.org/10.1039/d1cy01337h· OSTI ID:1903515

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Harvard Univ., Cambridge, MA (United States); Harvard
Harvard Univ., Cambridge, MA (United States)

Dilute PdAu alloys are promising catalysts for selective oxidation and hydrogenation reactions. However, the surface composition and active site density of the minority metal, Pd, is unknown. Here, we quantitatively determine a three-fold increase in the Pd site density on the surface of a dilute Pd_0.08Au_0.92 alloy catalyst after oxygen activation by titrating the oxidized surface with quantified pulses of CO.

View Accepted Manuscript (DOE)

Research Organization:: Harvard Univ., Cambridge, MA (United States); Energy Frontier Research Center (EFRC) (United States). Integrated Mesoscale Architectures for Sustainable Catalysis (IMASC)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

Grant/Contract Number:: SC0012573

OSTI ID:: 1903515

Alternate ID(s):: OSTI ID: 1831319

Journal Information:: Catalysis Science and Technology, Journal Name: Catalysis Science and Technology Journal Issue: 23 Vol. 11; ISSN 2044-4753

Publisher:: Royal Society of ChemistryCopyright Statement

Country of Publication:: United States

Language:: English

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