La cristalización SSZ-13 por la unión de partículas y las vías deterministas para el control del tamaño del cristal

Manjesh Kumar1, Helen Luo2, Yuriy Román-Leshkov2

  • 1Chemical and Biomolecular Engineering, University of Houston , Houston, Texas 77204, United States.

PubMed
Resumen

Los cristales de zeolita SSZ-13 crecen a través de vías no clásicas y clásicas. Los polímeros pueden controlar con precisión el tamaño, la forma y la porosidad del cristal para mejorar las aplicaciones en catálisis y separaciones.

Videos de Conceptos Relacionados

Crystal Growth: Principles of Crystallization01:25

Crystal Growth: Principles of Crystallization

Crystallization is a phase transformation process in which crystals are precipitated from a supersaturated solution or formed from other sources. During crystallization, atoms or molecules arrange themselves into a well-defined, rigid crystal lattice to minimize energy.
Initiating crystallization involves manipulating the concentration of the solute and the temperature of the solution. Since crystal growth occurs when the ratio of concentration and solubility of the solute in the solvent...
6.0K
Recrystallization: Solid–Solution Equilibria01:10

Recrystallization: Solid–Solution Equilibria

Recrystallization is a purification technique used to separate impurities from solid compounds. In this technique, no chemical reactions occur. Instead, it exploits physical properties only, specifically, the solubility differences between the desired compound and impurities, either at a single temperature or at different temperatures, and under other selected conditions. The solid-solution equilibrium (solubility equilibrium) of each component in the solution represents a binary phase...
4.7K
Precipitate Formation and Particle Size Control01:16

Precipitate Formation and Particle Size Control

In precipitation gravimetry, the precipitating agent should react specifically or selectively with the analyte. While a specific reagent reacts with the analyte alone, a selective reagent can react with a limited number of chemical species.
The obtained precipitate should be either a pure substance of known composition or easily converted to one by a simple process, such as ignition or drying. In addition, the precipitate should be insoluble and easily filterable. In general, filterability...
7.2K