Accessibility navigation


Selective catalytic oxidation of alkylaromatic molecules by nanosize water droplets containing Co2+ species in supercritical carbon dioxide fluid

Tsang, S.C., Zhu, J. and Yu, K.M.K. (2006) Selective catalytic oxidation of alkylaromatic molecules by nanosize water droplets containing Co2+ species in supercritical carbon dioxide fluid. Journal of Experimental Nanoscience, 1 (4). pp. 435-456. ISSN 1745-8080

Full text not archived in this repository.

It is advisable to refer to the publisher's version if you intend to cite from this work. See Guidance on citing.

To link to this item DOI: 10.1080/17458080601067682

Abstract/Summary

Stabilized nano-sized water droplet carrying water-soluble Co2+ species is employed as a new catalyst system for the oxidation of the alkyl aromatics in the presence of a fluorinated surfactant. This stable system contains no labile C-H structure and can facilitate excellent mixing of catalytic Co(II)/NaBr species, hydrocarbon substrates and oxygen in supercritical carbon dioxide fluid, which is demonstrated to be an excellent alternative solvent system to acetic acid or nitric acid for air oxidation of a number of alkyl aromatic hydrocarbons using Co(II) species at mild conditions. As a result, potential advantages of this 'greener' catalytic method including safer operation, easier separation and purification, higher catalytic activity with selectivity and without using corrosive or oxidation unstable solvent are therefore envisaged.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Chemistry, Food and Pharmacy > Department of Chemistry
ID Code:11683
Uncontrolled Keywords:supercritical carbon dioxide, oxidation, microemulsion, nanosize, water droplet, alkyl aromatic hydrocarbons, catalysis, selectivity , ANGLE NEUTRON-SCATTERING, ACETIC-ACID SOLUTION, HETEROGENEOUS CATALYSIS, TEREPHTHALIC ACID, AIR OXIDATION, BENZOIC-ACID, TOLUENE, MICROEMULSIONS, HYDROCARBONS, AUTOXIDATION

University Staff: Request a correction | Centaur Editors: Update this record

Page navigation