نتایج جستجو برای: hierarchical zeolites
تعداد نتایج: 96710 فیلتر نتایج به سال:
Hierarchical beta zeolites obtained in the concentrated reaction mixtures (H2O/Si = 2.5) and micromesoporous materials synthesized using a dual-template approach from zeolite precursor were rigorously characterized tested sustainable environmentally friendly process of α-pinene oxide isomerization. The highest yield trans-carveol (42%) with chemopreventive activity mammary carcinogenesis was ac...
Tailoring the textural properties of porous materials is paramount importance to optimize their performance in a variety applications. To this end, critical synthesis parameters influencing crystallization and reorganization need be identified judiciously controlled. Although effect pressure on chemical transformations ubiquitously present, its impact fabricating with tailored physicochemical r...
Artificial carbon dioxide capture is an alternative method to remove the already accumulated in atmosphere as well stop its release at large-scale emission points source, such power plants. However, new adsorbents are needed make approach feasible. For this purpose, study, hierarchical mesoporous-microporous chabazite-type zeolites were synthesised by applying a dual-templating method. The micr...
In order to reduce the harmful constituents in cigarette smoke, two hierarchical composites were synthesized. Based on, zeolites HZSM-5 or NaY fragments were introduced into the synthetic system of mesoporous silica SBA-15 or MCM-41 and assembled with the mesoporous materials. These porous composites combine the advantages of micro- and mesoporous materials, and exhibit higher effects than acti...
Zeolite fibers have attracted growing interest for a range of new applications because of their structural particularity while maintaining the intrinsic performances of the building blocks of zeolites. The fabrication of uniform zeolite fibers with tunable hierarchical porosity and further exploration of their catalytic potential are of great importance. Here, we present a versatile and facile ...
Hierarchical two-dimensional (2D) lamellar zeolites represent a young emerging field and novel expression of the zeolite frameworks. Accompanied with synthesis catalytic performance investigation, assessment on local environment behavior acid sites in 2D are needed. Here, we described Lewis evaluated activities external (i.e. surface mesopores) titanium silicalite-1 (TS-1) zeolites. For compari...
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