Imperial College London
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Professor King Kuok (Mimi) Hii

Faculty of Natural Sciences, Department of Chemistry

Professor of Catalysis
 
 
 
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Contact

 

mimi.hii Website CV

 
 
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Location

 

401KMolecular Sciences Research HubWhite City Campus

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Summary

 

Publications

Citation

BibTex format

@article{Checchia:2020:10.1021/acscatal.9b04869,
author = {Checchia, S and Mulligan, CJ and Emerich, H and Alxneit, I and Krumeich, F and Di, Michiel M and Thompson, PBJ and Hii, KKM and Ferri, D and Newton, MA},
doi = {10.1021/acscatal.9b04869},
journal = {ACS Catalysis},
pages = {3933--3944},
title = {Pd-LaFeO3 catalysts in aqueous ethanol: Pd reduction, leaching, and structural transformations in the presence of a base},
url = {http://dx.doi.org/10.1021/acscatal.9b04869},
volume = {10},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The reactive behavior of three catalysts based on Pd-loaded LaFeO3 was investigated in terms of the reducibility of Pd and its propensity to leaching into the liquid phase in flowing solutions prototypical of C–C coupling catalysis in a continuous flow reactor cell. In situ quick extended X-ray absorption fine structure spectroscopy showed that Pd remains stable and nonreducible in the flowing ethanol/water solvent mixture under heating to 353 K. However, ex situ transmission electron microscopy, high-energy X-ray diffraction, and fluorescence yield Fe K-edge X-ray absorption near-edge structure show that the addition of a significant amount of base (K2CO3, 0.1 M) results in the structural degradation of the perovskite support as well as the mobilization of Pd along the sample bed that is dependent on the structure and crystallite size of the perovskite. The results are discussed in terms of the use of perovskite-type oxides in various areas of research where they are placed in contact with liquid phases of variable temperature and elevated pH.
AU  - Checchia,S
AU  - Mulligan,CJ
AU  - Emerich,H
AU  - Alxneit,I
AU  - Krumeich,F
AU  - Di,Michiel M
AU  - Thompson,PBJ
AU  - Hii,KKM
AU  - Ferri,D
AU  - Newton,MA
DO  - 10.1021/acscatal.9b04869
EP  - 3944
PY  - 2020///
SN  - 2155-5435
SP  - 3933
TI  - Pd-LaFeO3 catalysts in aqueous ethanol: Pd reduction, leaching, and structural transformations in the presence of a base
T2  - ACS Catalysis
UR  - http://dx.doi.org/10.1021/acscatal.9b04869
UR  - https://pubs.acs.org/doi/10.1021/acscatal.9b04869
UR  - http://hdl.handle.net/10044/1/77383
VL  - 10
ER  -
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