Gold supported on mesoporous titania thin films for application in microstructured reactors in low-temperature water-gas shift reaction

E.V. Rebrov, A. Berenguer-Murcia, B.F.G. Johnson, J.C. Schouten

Research output: Contribution to journalArticleAcademicpeer-review

33 Citations (Scopus)
3 Downloads (Pure)

Abstract

Au (1 wt.%)/TiO2 catalytic thin films were prepared on a surface-modified titanium substrate for application in a water-gas shift (WGS) microstructured reactor. Au-containing mesoporous titania films were synthesized using Pluronic 127 surfactant as a structure directing agent and titanium tetrabutoxide as titania source. Colloidal gold nanoparticles of 4 nm diameter were added to the synthesis sol prior to spin-coating. The resulting thin films were characterized by X-ray diffraction, transmission electron microscopy, ethanol adsorption–desorption isotherms and spectroscopic ellipsometry. Catalytic activity and selectivity were measured for the WGS reaction at temperatures between 220 and 290 °C. The reaction rate measured at CO conversions of below 10% was similar to that reported for gold supported on mesoporous titania and on ceria modified mesoporous titania pelletized catalysts prepared via deposition–precipitation.
Original languageEnglish
Pages (from-to)210-215
JournalCatalysis Today
Volume138
Issue number3-4
DOIs
Publication statusPublished - 2008

Fingerprint

Dive into the research topics of 'Gold supported on mesoporous titania thin films for application in microstructured reactors in low-temperature water-gas shift reaction'. Together they form a unique fingerprint.

Cite this