Stability Enhancement in Ni-Promoted Cu−Fe Spinel Catalysts for Dimethyl Ether Steam Reforming

Effects of Ni doping on the catalytic behavior of Cu x Ni1−x Fe2O4 (x = 1, 0.95, 0.90, 0.50) mixed with Al2O3 were investigated in steam reforming of dimethyl ether for hydrogen production. The stability of the catalyst was significantly enhanced by doping Ni species to CuFe2O4. Formation of CuNi al...

Full description

Saved in:
Bibliographic Details
Published in:Journal of physical chemistry. C 2009-10, Vol.113 (43), p.18455-18458
Main Authors: Faungnawakij, Kajornsak, Kikuchi, Ryuji, Fukunaga, Tetsuya, Eguchi, Koichi
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Effects of Ni doping on the catalytic behavior of Cu x Ni1−x Fe2O4 (x = 1, 0.95, 0.90, 0.50) mixed with Al2O3 were investigated in steam reforming of dimethyl ether for hydrogen production. The stability of the catalyst was significantly enhanced by doping Ni species to CuFe2O4. Formation of CuNi alloy was confirmed as the amount of Ni addition increased. The suppression of the sintering rate was clearly evidenced over Ni-doped catalysts as compared with the undoped one, while the effect on carbon deposition rate was unclear. Nevertheless, an increasing amount of Ni dopant to Cu−Fe spinel retarded the conversion of dimethyl ether and led to high selectivity to CH4 and CO.
ISSN:1932-7447
1932-7455
DOI:10.1021/jp908365a