We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Alloy‐Mediated Ultra‐Low CO Selectivity for Steam Reforming over Cu−Ni Bimetallic Catalysts.
- Authors
Ma, Kui; Cui, Zhonghui; Zhang, Zhitao; Huang, Jingjing; Sun, Zhirui; Tian, Ye; Ding, Tong; Li, Xingang
- Abstract
Abstract: Steam reforming of simple oxygenated hydrocarbons without C−C bonds is suitable for small‐scale decentralized H2 production for fuel cells. However, the relatively high CO concentration in H2‐rich reformates produced by traditional Cu‐based catalysts will poison the Pt‐based anode in fuel cells. Here, we describe a new approach to the design of Cu−Ni bimetallic catalysts based on nickel‐phyllosilicate for steam reforming of dimethyl ether (DME). With the tunable formation of the Cu−Ni alloy, we can modulate the selectivity of CO and CH4 in steam reforming and achieve H2‐rich reformates with an ultra‐low concentration of CO (below 1000 ppm). This process only requires simple and low‐energy purification pretreatments to meet the requirements of commercial fuel cells. Mechanistic studies reveal that the Cu−Ni alloy can adsorb CO, particularly at high temperatures, and simultaneously suppress CO dissociation to methane.
- Subjects
BIMETALLIC catalysts; HYDROCARBONS; CARBON-carbon bonds; METHYL ether; METHANE
- Publication
ChemCatChem, 2018, Vol 10, Issue 18, p4010
- ISSN
1867-3880
- Publication type
Article
- DOI
10.1002/cctc.201800684