Iron-containing SSZ-39 (AEI) zeolite: An active and stable high-temperature NH3-SCR catalyst
The preparation of the iron-containing SSZ-39 zeolite is described for the first time through two different synthesis methods: post-synthetic cation exchange and one-pot synthesis. The nature and stability of the iron species within the different Fe-SSZ-39 materials have been studied through differe...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2017 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/162198 |
| Acceso en línea: | http://hdl.handle.net/10261/162198 |
| Access Level: | acceso abierto |
| Palabra clave: | SSZ-39 Selective catalytic reduction of NOx AEI zeolites Heterogeneous catalysis Iron zeolites |
| Sumario: | The preparation of the iron-containing SSZ-39 zeolite is described for the first time through two different synthesis methods: post-synthetic cation exchange and one-pot synthesis. The nature and stability of the iron species within the different Fe-SSZ-39 materials have been studied through different characterization techniques, and their catalytic activity has been evaluated for the selective catalytic reduction (SCR) of NO with ammonia. The directly synthetized Fe-SSZ-39 performs better for the SCR of NO with ammonia than other related Fe-zeolites, particularly at elevated reaction temperatures (above 450 °C), and presents improved hydrothermal stability when aged under severe conditions. |
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