Dendritic nanoarchitecture imparts ZSM-5 zeolite with enhanced adsorption and catalytic performance in energy applications
| Autor: | María del Mar Alonso-Doncel, Cristina Ochoa-Hernández, Gema Gómez-Pozuelo, Adriana Oliveira, José González-Aguilar, Ángel Peral, Raúl Sanz, David P. Serrano |
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| Jazyk: | angličtina |
| Rok vydání: | 2023 |
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| Popis: | The development of zeolites possessing dendritic features represents a great opportunity for the design of novel materials with applications in a large variety of fields and, in particular, in the energy sector to afford its transition towards a low carbon system. In the current work, ZSM-5 zeolite showing a dendritic 3D nanoarchitecture has been synthesized by the functionalization of protozeolitic nanounits with an amphiphilic organosilane, which provokes the branched aggregative growth of zeolite embryos. Dendritic ZSM-5 exhibits outstanding accessibility arising from a highly interconnected network of radially-oriented mesopores (3 – 10 nm) and large cavities (20 – 80 nm), which add to the zeolitic micropores, thus showing a well-defined trimodal pore size distribution. These singular features provide dendritic ZSM-5 with sharply enhanced performance in comparison with nano- and hierarchical reference materials when tested in a number of energy related applications, such as VOCs (toluene) adsorption (improved capacity), plastics (low-density polyethylene) catalytic cracking (boosted activity) and hydrogen production by methane catalytic decomposition (higher activity and deactivation resistance). A.S. Oliveira thanks the Ministry of Universities; the Recovery, Transformation and Resilience Plan, and the Autonomous University of Madrid for a research grant (CA1/RSUE/2021-00836). This work is also supported by the Spanish Government ''Ministerio de Economía. Industria y Competitividad" (BIOCASCHEM CTQ2017-87001-R). |
| Databáze: | OpenAIRE |
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