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Article
Controlling Catalytic Properties of Pd Nanoclusters through Their Chemical Environment at the Atomic Level Using Isoreticular Metal–Organic Frameworks
ACS Catalysis
  • Xinle Li, Iowa State University
  • Tian Wei Goh, Iowa State University
  • Lei Li, University of Nebraska - Lincoln
  • Zhiyong Guo, Iowa State University
  • Xiao Cheng Zeng, University of Nebraska - Lincoln
  • Wenyu Huang, Iowa State University
Document Type
Article
Publication Version
Published Version
Publication Date
1-1-2016
DOI
10.1021/acscatal.6b00397
Abstract
Control of heterogeneous catalytic sites through their surrounding chemical environment at an atomic level is crucial to catalyst design. We synthesize Pd nanoclusters (NCs) in an atomically tunable chemical environment using isoreticular metal–organic framework (MOF) supports (Pd@UiO-66-X, X = H, NH2, OMe). In an aerobic reaction between benzaldehyde and ethylene glycol, these catalysts show product distributions that are completely altered from the acetal to the ester when we change the functional groups on the MOF linkers from −NH2 to −H/–OMe. Diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) studies, along with density functional theory (DFT) calculations, show that the coordination of the −NH2 groups to the Pd NCs could weaken their oxidation capability to a greater extent in comparison to that of the −OMe group. Moreover, the limited number of −NH2 groups per cavity in the MOF change the electronic properties of the Pd NCs while still leaving open sites for catalysis.
Comments

Reprinted (adapted) with permission from ACS Catal., 2016, 6 (6), pp 3461–3468. Copyright 2016 American Chemical Society.

Copyright Owner
American Chemical Society
Language
en
File Format
application/pdf
Citation Information
Xinle Li, Tian Wei Goh, Lei Li, Zhiyong Guo, et al.. "Controlling Catalytic Properties of Pd Nanoclusters through Their Chemical Environment at the Atomic Level Using Isoreticular Metal–Organic Frameworks" ACS Catalysis Vol. 69 Iss. 6 (2016) p. 3461 - 3468
Available at: http://works.bepress.com/wenyu_huang/34/