Au/FeOx−TiO2 catalysts for the preferential oxidation of CO in a H2 stream / Yi-Fen Yang in Industrial & engineering chemistry research, Vol. 48 N° 23 (Décembre 2009)  

Au/FeOx−TiO2 catalysts for the preferential oxidation of CO in a H2 stream [texte imprimé] / Yi-Fen Yang, Auteur ; Palanivelu Sangeetha, Auteur ; Chen, Yu-Wen, Auteur . - 2010 . - pp. 10402–10407.
Industrial chemistry
Langues : Anglais (eng)
in Industrial & engineering chemistry research > Vol. 48 N° 23 (Décembre 2009) . - pp. 10402–10407

Mots-clés :	Au/FeOx−  TiO2--Catalysts--Preferential--Oxidation--CO--H2--Stream
Résumé :	A series of gold catalysts supported on Fe2O3−TiO2 with various iron contents were prepared. A FeOx−TiO2 support was prepared via incipient-wetness impregnation with aqueous solution of Fe(NO3)3 on TiO2. A gold catalyst with a nominal loading of 1 wt % was prepared by deposition−precipitation at pH 7 and 65 °C. The catalysts were characterized by X-ray diffraction, transmission electron microscopy, and X-ray photoelectron spectroscopy. The catalytic performance of these catalysts were investigated by preferential oxidation of carbon monoxide in hydrogen stream (PROX). The reaction was conducted in a fixed-bed microreactor with a feed of CO:O2:H2:He = 1:1:49:49 (volume ratios). A limited amount of oxygen was used. Gold catalysts have been reported to be efficient catalysts for the PROX reaction to reduce CO concentration to
ISSN :	0888-5885
En ligne :	http://pubs.acs.org/doi/abs/10.1021/ie900806r