Synthesis and Catalytic Properties of New Sustainable Aluminosilicate Heterogeneous Catalysts Derived from Fly Ash
| Autor: | Kenneth J. D. MacKenzie, Mohammad I.M. Alzeer |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
inorganic chemicals
Renewable Energy Sustainability and the Environment Chemistry organic chemicals General Chemical Engineering 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Heterogeneous catalysis Molecular sieve 01 natural sciences 0104 chemical sciences Catalysis chemistry.chemical_compound Chemical engineering Aluminosilicate Fly ash Ionic liquid Environmental Chemistry heterocyclic compounds Reactivity (chemistry) 0210 nano-technology Mesoporous material |
| Zdroj: | ACS Sustainable Chemistry & Engineering. 6:5273-5282 |
| ISSN: | 2168-0485 |
| DOI: | 10.1021/acssuschemeng.7b04923 |
| Popis: | The field of heterogeneous catalysis has recently become increasingly interested in the utilization of industrial wastes as inexpensive precursors for active catalysts. Here we report a facile synthesis of fly-ash-based geopolymers as new highly reactive sustainable porous aluminosilicate heterogeneous catalysts for acidic and/or redox applications. The catalytic properties of these catalysts for Friedel–Crafts benzylation reactions of benzene and other substituted aromatics were thoroughly investigated. Fly ashes were collected from various sources were investigated, and the impact of the variation of their chemical and physical properties on the resulting catalysts was studied. The catalysts demonstrated excellent catalytic reactivity superior to other commonly used aluminosilicate catalysts such as M-zeolite, mesoporous molecular sieves, mixed oxides, and ionic liquids. This study not only highlights the feasibility of synthesizing active heterogeneous catalysts with predictable features from several d... |
| Databáze: | OpenAIRE |
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