eprintid: 1506924
rev_number: 30
eprint_status: archive
userid: 608
dir: disk0/01/50/69/24
datestamp: 2016-07-31 04:05:01
lastmod: 2021-09-19 23:40:35
status_changed: 2016-11-29 14:47:49
type: article
metadata_visibility: show
creators_name: Wu, G
creators_name: Brett, GL
creators_name: Cao, E
creators_name: Constantinou, A
creators_name: Ellis, P
creators_name: Kuhn, S
creators_name: Hutchings, GJ
creators_name: Bethell, D
creators_name: Gavriilidis, A
title: Oxidation of cinnamyl alcohol using bimetallic Au-Pd/TiO2 catalysts: a deactivation study in a continuous flow packed bed microreactor
ispublished: pub
divisions: UCL
divisions: B04
divisions: C05
divisions: F43
keywords: Science & Technology, Physical Sciences, Chemistry, Physical, Chemistry, LIQUID-PHASE OXIDATION, SELECTIVE OXIDATION, AEROBIC OXIDATION, HETEROGENEOUS CATALYST, MOLECULAR-OXYGEN, PALLADIUM, PD, NANOPARTICLES, ALDEHYDES, SOLVENT
note: This Open Access Article is licensed under a Creative Commons Attribution 3.0 Unported Licence
abstract: The stability of a bimetallic Au–Pd/TiO2 catalyst was examined in a packed bed microreactor for the oxidation of cinnamyl alcohol dissolved in toluene. The catalyst was prepared by co-impregnation with a Au–Pd weight ratio of 1 : 19. Experiments were performed at 80–120 °C, oxygen concentration 0–100% and total pressure 4 bara. Principal products observed were cinnamaldehyde, 3-phenyl-1-propanol and trans-β-methylstyrene. Although the same catalyst was shown to possess good stability in the oxidation of benzyl alcohol, it deactivated during the oxidation of cinnamyl alcohol, particularly at elevated reaction temperatures. Higher concentration of oxygen used for the reaction led to improved cinnamaldehyde selectivity but lower conversion and higher deactivation rates. Treatment with hydrogen recovered only a fraction of the activity. Deactivation was attributed to Pd leaching and a complex effect of oxygen.
date: 2016-05-26
date_type: published
publisher: ROYAL SOC CHEMISTRY
official_url: http://dx.doi.org/10.1039/c6cy00232c
oa_status: green
full_text_type: pub
language: eng
primo: open
primo_central: open_green
article_type_text: Article
verified: verified_manual
elements_id: 1142226
doi: 10.1039/c6cy00232c
language_elements: English
lyricists_name: Cao, Enhong
lyricists_name: Gavriilidis, Asterios
lyricists_name: Wu, Gaowei
lyricists_id: ECAOX57
lyricists_id: AGAVR68
lyricists_id: GWUXX72
actors_name: Barczynska, Patrycja
actors_id: PBARC91
actors_role: owner
full_text_status: public
publication: Catalysis Science & Technology
volume: 6
number: 13
pagerange: 4749-4758
pages: 10
issn: 2044-4753
citation:        Wu, G;    Brett, GL;    Cao, E;    Constantinou, A;    Ellis, P;    Kuhn, S;    Hutchings, GJ;         ... Gavriilidis, A; + view all <#>        Wu, G;  Brett, GL;  Cao, E;  Constantinou, A;  Ellis, P;  Kuhn, S;  Hutchings, GJ;  Bethell, D;  Gavriilidis, A;   - view fewer <#>    (2016)    Oxidation of cinnamyl alcohol using bimetallic Au-Pd/TiO2 catalysts: a deactivation study in a continuous flow packed bed microreactor.                   Catalysis Science & Technology , 6  (13)   pp. 4749-4758.    10.1039/c6cy00232c <https://doi.org/10.1039/c6cy00232c>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/1506924/1/c6cy00232c.pdf