Paper-structured fiber composites impregnated with platinum nanoparticles synthesized on a carbon fiber matrix for catalytic reduction of nitrogen oxides
Platinum nanoparticles (PtNPs) were synthesized on surface-activated carbon fibers with high thermal conductivity, and paper-structured composites were fabricated by a papermaking technique, using the PtNPs-supported carbon fibers and ceramic fibers as matrix materials. As-prepared materials, denote...
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| Veröffentlicht in: | Applied catalysis. B, Environmental Environmental, 2009-08, Vol.90 (3-4), p.699-704 |
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| container_title | Applied catalysis. B, Environmental |
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| creator | Koga, Hirotaka Umemura, Yuuka Ishihara, Hirotake Kitaoka, Takuya Tomoda, Akihiko Suzuki, Ryo Wariishi, Hiroyuki |
| description | Platinum nanoparticles (PtNPs) were synthesized on surface-activated carbon fibers with high thermal conductivity, and paper-structured composites were fabricated by a papermaking technique, using the PtNPs-supported carbon fibers and ceramic fibers as matrix materials. As-prepared materials, denoted paper-structured PtNPs catalyst, possessed a unique porous microstructure derived from entangled inorganic fiber networks on which PtNPs were well dispersed. In catalytic reduction of nitrogen oxides (NOX) in the presence of methane (CH4), both of which are model exhaust gas components of combustion engines, paper-structured PtNPs catalyst demonstrated excellent NOX and CH4 removal efficiency and rapid thermal responsiveness by comparison with the PtNPs-supported carbon fibers, commercial Pt catalyst powders and a monolithic Pt-loaded honeycomb. These features of the new catalyst material are thought to arise from synergistic effects of the highly active PtNPs in association with the unique paper-like microstructure, in promoting effective transfer of heat and reactants to the active sites of the Pt nanocatalysts. The paper-structured PtNPs catalyst with paper-like practical utility is expected to be a promising catalytic material for efficient NOX gas purification. |
| doi_str_mv | 10.1016/j.apcatb.2009.05.002 |
| format | Article |
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As-prepared materials, denoted paper-structured PtNPs catalyst, possessed a unique porous microstructure derived from entangled inorganic fiber networks on which PtNPs were well dispersed. In catalytic reduction of nitrogen oxides (NOX) in the presence of methane (CH4), both of which are model exhaust gas components of combustion engines, paper-structured PtNPs catalyst demonstrated excellent NOX and CH4 removal efficiency and rapid thermal responsiveness by comparison with the PtNPs-supported carbon fibers, commercial Pt catalyst powders and a monolithic Pt-loaded honeycomb. These features of the new catalyst material are thought to arise from synergistic effects of the highly active PtNPs in association with the unique paper-like microstructure, in promoting effective transfer of heat and reactants to the active sites of the Pt nanocatalysts. The paper-structured PtNPs catalyst with paper-like practical utility is expected to be a promising catalytic material for efficient NOX gas purification.</description><identifier>ISSN: 0926-3373</identifier><identifier>EISSN: 1873-3883</identifier><identifier>DOI: 10.1016/j.apcatb.2009.05.002</identifier><language>eng</language><publisher>Kidlington: Elsevier B.V</publisher><subject>Adsorbents ; Carbon fiber ; Carbon fibers ; Catalysis ; Catalysts ; Catalytic gas purification ; Chemistry ; Colloidal state and disperse state ; Exact sciences and technology ; General and physical chemistry ; Microstructure ; Nanostructure ; Nitrogen oxides ; Paper-structured catalyst ; Physical and chemical studies. Granulometry. Electrokinetic phenomena ; Platinum ; Platinum nanoparticles ; Porous materials ; Reduction ; Surface physical chemistry ; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry</subject><ispartof>Applied catalysis. 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B, Environmental</title><description>Platinum nanoparticles (PtNPs) were synthesized on surface-activated carbon fibers with high thermal conductivity, and paper-structured composites were fabricated by a papermaking technique, using the PtNPs-supported carbon fibers and ceramic fibers as matrix materials. As-prepared materials, denoted paper-structured PtNPs catalyst, possessed a unique porous microstructure derived from entangled inorganic fiber networks on which PtNPs were well dispersed. In catalytic reduction of nitrogen oxides (NOX) in the presence of methane (CH4), both of which are model exhaust gas components of combustion engines, paper-structured PtNPs catalyst demonstrated excellent NOX and CH4 removal efficiency and rapid thermal responsiveness by comparison with the PtNPs-supported carbon fibers, commercial Pt catalyst powders and a monolithic Pt-loaded honeycomb. These features of the new catalyst material are thought to arise from synergistic effects of the highly active PtNPs in association with the unique paper-like microstructure, in promoting effective transfer of heat and reactants to the active sites of the Pt nanocatalysts. The paper-structured PtNPs catalyst with paper-like practical utility is expected to be a promising catalytic material for efficient NOX gas purification.</description><subject>Adsorbents</subject><subject>Carbon fiber</subject><subject>Carbon fibers</subject><subject>Catalysis</subject><subject>Catalysts</subject><subject>Catalytic gas purification</subject><subject>Chemistry</subject><subject>Colloidal state and disperse state</subject><subject>Exact sciences and technology</subject><subject>General and physical chemistry</subject><subject>Microstructure</subject><subject>Nanostructure</subject><subject>Nitrogen oxides</subject><subject>Paper-structured catalyst</subject><subject>Physical and chemical studies. Granulometry. Electrokinetic phenomena</subject><subject>Platinum</subject><subject>Platinum nanoparticles</subject><subject>Porous materials</subject><subject>Reduction</subject><subject>Surface physical chemistry</subject><subject>Theory of reactions, general kinetics. Catalysis. 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| identifier | ISSN: 0926-3373 |
| ispartof | Applied catalysis. B, Environmental, 2009-08, Vol.90 (3-4), p.699-704 |
| issn | 0926-3373 1873-3883 |
| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Adsorbents Carbon fiber Carbon fibers Catalysis Catalysts Catalytic gas purification Chemistry Colloidal state and disperse state Exact sciences and technology General and physical chemistry Microstructure Nanostructure Nitrogen oxides Paper-structured catalyst Physical and chemical studies. Granulometry. Electrokinetic phenomena Platinum Platinum nanoparticles Porous materials Reduction Surface physical chemistry Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry |
| title | Paper-structured fiber composites impregnated with platinum nanoparticles synthesized on a carbon fiber matrix for catalytic reduction of nitrogen oxides |
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