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Ceria catalysts for water gas shift reaction: Influence of preparation method on their activity

Paper ID Volume ID Publish Year Pages File Format Full-Text
48941 46531 2006 8 PDF Available
Title
Ceria catalysts for water gas shift reaction: Influence of preparation method on their activity
Abstract

The influence of the ceria catalysts preparation method on their structure and activity in water gas shift reaction has been studied. Ceria supports were prepared by the precipitation method from aqueous and organic solutions (e.g. alcohols) and the impregnation method used for active metal loading. Ceria catalysts were also prepared, by the coprecipitation method for total concentration of nitrate salts ranging from 0.006 to 0.18 mol/L. All catalysts were tested under conditions of the water gas shift (WGS) reaction. The catalysts were characterized by BET, XRD and SEM analyses and their activities were tested in a flow reactor in the temperature range of 150–350 °C with gas hourly space velocity (GHSV) in the range of 750–16,000 h−1. The catalysts prepared by the coprecipitation method present the highest activity.

Keywords
Water gas shift; Ceria-based catalysts; Catalysts activity
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 67, Issues 1–2, 11 September 2006, Pages 105–112
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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