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Effect of retained chlorine in ENCAT™ 30 catalysts on the development of encapsulated Pd: insights from in situ Pd K, L3 and Cl K-edge XAS

Title: Effect of retained chlorine in ENCAT™ 30 catalysts on the development of encapsulated Pd: insights from in situ Pd K, L3 and Cl K-edge XAS
Authors: Hii, KM
Newton, MA
Nicholls, R
Brazier, JB
Nguyen, BN
Barreiro
Mulligan, C
Hellgardt
Emerich, H
Snigireva, I
Thompson, PBJ
Item Type: Journal Article
Abstract: In situ X-ray absorption spectroscopy (XAS) and Pd K, LIII, and Cl K-edges shows that Cl can be present in significant amounts in ENCAT™ 30 catalysts and that it can severely retard Pd nanoparticle (NP) development in flowing solvents. We also show that whilst polymeric encapsulation protects the Pd against solvent induced agglomeration of Pd nanoparticles the evidence suggests it does not prevent the formation PdHx through reaction with the aqeous ethanol solvent, and that, as received, ENCAT™ 30 NP catalysts are not, for the most part, comprised of nanoparticulate Pd0 irrespective of the presence of Cl.
Issue Date: 2-Aug-2017
Date of Acceptance: 26-Jun-2017
URI: http://hdl.handle.net/10044/1/56131
DOI: https://dx.doi.org/10.1080/2055074X.2017.1348711
ISSN: 2055-074X
Publisher: Taylor & Francis
Start Page: 149
End Page: 156
Journal / Book Title: Catalysis, Structure & Reactivity
Volume: 3
Issue: 4
Replaces: http://hdl.handle.net/10044/1/49734
10044/1/49734
Copyright Statement: © 2017 the author(s). Published by informa uK limited, trading as Taylor & Francis Group. this is an Open access article distributed under the terms of the Creative Commons a ttribution license (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Sponsor/Funder: Engineering & Physical Science Research Council (EPSRC)
Funder's Grant Number: EP/G070172/1
Publication Status: Published
Appears in Collections:Chemistry
Catalysis and Advanced Materials
Chemical Engineering
Faculty of Natural Sciences



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