Au/ZrO2 catalysts for low-temperature water gas shift reaction: Influence of particle sizes
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چکیده
منابع مشابه
Gold–ceria catalysts for low-temperature water-gas shift reaction
Nanostructured Au–ceria is a promising new catalyst for low-temperature water-gas shift (LTS). Preparation, characterization, and catalytic properties of this material are reported in this paper. Gold–ceria was prepared by deposition–precipitation (DP), coprecipitation (CP), and gelation methods. The gold loading was varied between 1 and 8.3 at.%, while lanthanum used as a dopant in ceria, was ...
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The composite system of nanostructured gold and cerium oxide, with a gold loading 5–8 wt%, is reported in this work as a very good catalyst for low-temperature water–gas shift. Activity depends largely on the presence of nanosized ceria particles. Various techniques of preparation of an active catalyst are disscussed. The presence of gold is crucial for activity below 300 ◦C. A dramatic effect ...
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In this paper we report on the activity of Cuand Ni-containing cerium oxide catalysts for low-temperature water-gas shift (WGS). Bulk catalysts were prepared in nanocrystalline form by the urea co-precipitation–gelation method. Lanthanum dopant (10 at.%) was used as a structural stabilizer of ceria, while the content of Cu or Ni was in the range of 5–15 at.% (2–8 wt.%). At low metal loadings, C...
متن کاملInorganic Complex Precursor: Preparation of Cu-Mn/SiO2 Mixed Oxide Nanocatalyst for Low-Temperature Water-Gas Shift Reaction
The present study examined the effect of three methods of preparation on the properties and catalytic performance of Cu-Mn/SiO2 catalysts for the water gas shift reaction (WGSR). Impregnation and coprecipitation and the new approach of thermal decomposition of [Cu(H2O)6][Mn(dipic)2].2H2O/SiO2 inorganic precursor complex were used for the synthesis of the silica-supported copper-manganese mixed ...
متن کاملNi–CeO2–ZrO2 Catalysts for Water Gas Shift Reaction: Effect of CeO2 Contents and Reduction Temperature
Ni–CeO2–ZrO2 Catalysts for Water Gas Shift Reaction: Effect of CeO2
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ژورنال
عنوان ژورنال: Gold Bulletin
سال: 2009
ISSN: 0017-1557,2190-7579
DOI: 10.1007/bf03214905