Imperial College London
Prof. David Chadwick

Prof. David Chadwick

Faculty of Engineering, Department of Chemical Engineering

Professor
 
 
 
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Contact

 

+44 (0)20 7594 5579d.chadwick

 
 
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Location

 

235Roderic Hill BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Khawaji:2019:10.1016/j.apcatb.2019.117799,
author = {Khawaji, M and Zhang, Y and Loh, M and Biscaya, Semedo Pereira Da Graca I and Ware, E and Chadwick, D},
doi = {10.1016/j.apcatb.2019.117799},
journal = {Applied Catalysis B: Environmental},
title = {Composition dependent selectivity of bimetallic Au-Pd NPs immobilised on titanate nanotubes in catalytic oxidation of glucose},
url = {http://dx.doi.org/10.1016/j.apcatb.2019.117799},
volume = {256},
year = {2019}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The catalytic performance of Au-Pd nanoparticles (NP) prepared by colloidal synthesis and immobilised on titanate nanotubes(Ti-NT) in the selective oxidation of glucose to gluconic and glucaric acids has been studied under initially basic and relativelymild conditions. Catalysts with varying compositions displayed quite different product selectivity especially in relation to deeperoxidation. The yield of glucaric acid was found to be proportional to the atomic content of Au in the Au-Pd NPs: Au/Ti-NTexhibited the highest selectivity to glucaric acid, while Au15Pd85/Ti-NT displayed the highest selectivity to gluconic acid, SGLO >98%. Catalyst recycling revealed deactivation, which appears to be due to a combination of metal leaching, particle size changesand product adsorption, and is associated with the gradual fall in pH of the reaction mixture. Results suggest that the leached Auspecies play a significant role in the oxidation of gluconic to glucaric acid.
AU  - Khawaji,M
AU  - Zhang,Y
AU  - Loh,M
AU  - Biscaya,Semedo Pereira Da Graca I
AU  - Ware,E
AU  - Chadwick,D
DO  - 10.1016/j.apcatb.2019.117799
PY  - 2019///
SN  - 0926-3373
TI  - Composition dependent selectivity of bimetallic Au-Pd NPs immobilised on titanate nanotubes in catalytic oxidation of glucose
T2  - Applied Catalysis B: Environmental
UR  - http://dx.doi.org/10.1016/j.apcatb.2019.117799
UR  - http://hdl.handle.net/10044/1/70708
VL  - 256
ER  -
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