Tunability of the Adsorbate Binding on Bimetallic Alloy Nanoparticles for the Optimization of Catalytic Hydrogenation

In this paper, we show that PtAu and PdAu random alloy dendrimer-encapsulated nanoparticles with an average size of ∼1.6 nm have different catalytic activity trends for allyl alcohol hydrogenation. Specifically, PtAu nanoparticles exhibit a linear increase in activity with increasing Pt content, whe...

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Published in:Journal of the American Chemical Society 2017-04, Vol.139 (15), p.5538-5546
Main Authors: Luo, Long, Duan, Zhiyao, Li, Hao, Kim, Joohoon, Henkelman, Graeme, Crooks, Richard M
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cited_by cdi_FETCH-LOGICAL-a454t-bac671163768d1ea1cb983ba1b2b7c7078666364b4dd9937170f20e1e727c45e3
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container_issue 15
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container_title Journal of the American Chemical Society
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creator Luo, Long
Duan, Zhiyao
Li, Hao
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Crooks, Richard M
description In this paper, we show that PtAu and PdAu random alloy dendrimer-encapsulated nanoparticles with an average size of ∼1.6 nm have different catalytic activity trends for allyl alcohol hydrogenation. Specifically, PtAu nanoparticles exhibit a linear increase in activity with increasing Pt content, whereas PdAu dendrimer-encapsulated nanoparticles show a maximum activity at a Pd content of ∼60%. Both experimental and theoretical results suggest that this contrasting behavior is caused by differences in the strength of H binding on the PtAu and PdAu alloy surfaces. The results have significant implications for predicting the catalytic performance of bimetallic nanoparticles on the basis of density functional theory calculations.
doi_str_mv 10.1021/jacs.7b01653
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subjects Chemistry
title Tunability of the Adsorbate Binding on Bimetallic Alloy Nanoparticles for the Optimization of Catalytic Hydrogenation
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