Abstract In-situ zeolites NaY and Na[B]Y were synthesized on microspherical matrices of kaolin to obtain FCC catalysts. An alkaline pretreatment the matrix was investigated in order evaluate its effect properties crystallization in-situ synthetized zeolites. Catalysts characterized by SEM, TEM, Ar adsorption, XRD NH 3 -TPD. It observed an increase surface area mesoporosity treated catalysts eit...

Mesoporous carbon materials derived from the novel biomass of fallen teak leaves were synthesized using versatile, low cost, and environmentally friendly route. Therefore, mesoporous prepared in monolith form, followed by treatment with integrated pyrolysis both carbonization physical activation. In addition, there are detailed studies analysis on influences chemical activation processes under ...

Carbon nanotubes (CNTs), graphene aerogels (GAs), and their hybrid (CNT-GA) prepared by hydrothermal treatment were tested in the electrocatalytic oxygen reduction reaction (ORR). The importance of porous structure derived from combination mesoporosity coming CNTs with macroporosity stemming GAs was evidenced because carbon material exhibited synergistic performance terms kinetic current onset ...

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...

Abstract This work reports the synthesis of a mixed crystal phase mesoporous metal–organic framework (MOF) through new route. The Hexagonal Centred Planar/Face Cubic UiO-67(Zr) product was microfluidically synthesised using benzoic acid as modulator. ratio can be altered changing concentration water present in reaction solution. shows increased mesoporosity and uptake N 2 at 77 K 1 bar 1083 cm ...

Catalytic fast pyrolysis of polyolefinic waste streams was investigated to recover valuable base chemicals at high selectivity. HZSM-5 zeolite with different properties, affected by Si/Al, mesoporosity, phosphorus stabilization, and steaming, were tested thoroughly characterized. Different feeds, catalyst/feed ratios reaction temperatures evaluated in a micropyrolysis reactor coupled two-dimens...

Nowadays, the synthesis of biofuels from renewable raw materials is very popular. Among various challenges involved in improving these processes, environmentally benign catalysts compatible with an inexpensive feedstock have become more important. Herein, we report recent advances achieved development Niobium-containing heterogeneous as well their use routes to produce biodiesel. The efficiency...

Mesoporous high-silica zeolite Y with advantages of improved accessibility acid sites and mass transport properties is highly desired catalytic materials for oil refinery, fine chemistry emerging biorefinery. Here, we report the direct synthesis mesoporous (named MSY, SiO2/Al2O3 ? 9.8) their excellent cracking performance. The obtained MSY are single crystals octahedral morphology, abundant mes...

The adsorption capacities of two synthesized zeolites (crystalline ZSM-5 and semi-crystalline faujasite Y) for a mixture indole, quinoline carbazole were studied. different samples obtained show crystalline degree, mesoporosity Si/Al ratios. synthesis procedure is based on the simultaneous depolymerization high surface area silica, such as rice hull ashes (RHA), zeolite, clinoptilolite or fauja...