Ceria catalysts for water gas shift reaction: Influence of preparation method on their activity
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....
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| Veröffentlicht in: | Applied catalysis. B, Environmental Environmental, 2006-09, Vol.67 (1-2), p.105-112 |
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| container_title | Applied catalysis. B, Environmental |
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| creator | Zerva, C. Philippopoulos, C.J. |
| description | 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 0.18mol/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 750–16,000h−1. The catalysts prepared by the coprecipitation method present the highest activity. |
| doi_str_mv | 10.1016/j.apcatb.2006.04.013 |
| format | Article |
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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 0.18mol/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 750–16,000h−1. The catalysts prepared by the coprecipitation method present the highest activity.</description><identifier>ISSN: 0926-3373</identifier><identifier>EISSN: 1873-3883</identifier><identifier>DOI: 10.1016/j.apcatb.2006.04.013</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Catalysis ; Catalysts ; Catalysts activity ; Ceria-based catalysts ; Cerium oxide ; Chemistry ; Coprecipitation ; Exact sciences and technology ; General and physical chemistry ; Precipitation ; Reactors ; Shift reaction ; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry ; Water gas ; Water gas shift</subject><ispartof>Applied catalysis. 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B, Environmental</title><description>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 0.18mol/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 750–16,000h−1. The catalysts prepared by the coprecipitation method present the highest activity.</description><subject>Catalysis</subject><subject>Catalysts</subject><subject>Catalysts activity</subject><subject>Ceria-based catalysts</subject><subject>Cerium oxide</subject><subject>Chemistry</subject><subject>Coprecipitation</subject><subject>Exact sciences and technology</subject><subject>General and physical chemistry</subject><subject>Precipitation</subject><subject>Reactors</subject><subject>Shift reaction</subject><subject>Theory of reactions, general kinetics. Catalysis. 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Nomenclature, chemical documentation, computer chemistry</topic><topic>Water gas</topic><topic>Water gas shift</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zerva, C.</creatorcontrib><creatorcontrib>Philippopoulos, C.J.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Ceramic Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Environmental Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Environment Abstracts</collection><collection>Environment Abstracts</collection><jtitle>Applied catalysis. 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Ceria catalysts were also prepared, by the coprecipitation method for total concentration of nitrate salts ranging from 0.006 to 0.18mol/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 750–16,000h−1. The catalysts prepared by the coprecipitation method present the highest activity.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.apcatb.2006.04.013</doi><tpages>8</tpages></addata></record> |
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| ispartof | Applied catalysis. B, Environmental, 2006-09, Vol.67 (1-2), p.105-112 |
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| language | eng |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | Catalysis Catalysts Catalysts activity Ceria-based catalysts Cerium oxide Chemistry Coprecipitation Exact sciences and technology General and physical chemistry Precipitation Reactors Shift reaction Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry Water gas Water gas shift |
| title | Ceria catalysts for water gas shift reaction: Influence of preparation method on their activity |
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