Electron microscopy methods for characterisation of zeolite catalysts

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F20%3A10425388" target="_blank" >RIV/00216208:11310/20:10425388 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1039/9781788019477-00151" target="_blank" >https://doi.org/10.1039/9781788019477-00151</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/9781788019477-00151" target="_blank" >10.1039/9781788019477-00151</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Electron microscopy methods for characterisation of zeolite catalysts

Popis výsledku v původním jazyce

Heterogeneous catalysis is crucial branch of chemistry, having unprecedented impact on nearly every aspect of our life. Zeolites as crystalline microporous solids have found application in many industrial catalytic processes like fluid catalytic cracking (FCC), hydrogenations, polymerisations, or alkylations. Their main advantages are defined pore structure resulting in so-called shape/size-selectivity and presence of Bronsted acid sites due to the trivalent atoms (such as Al) in the framework. The proper design of zeolite catalysts, study of the crystal formation, their morphology, structural properties, location of active species, porosity and structural determination of new materials often requires support by advanced characterisation techniques Among them, electron microscopy and related methods are often essential for the thorough description of mentioned features. Scanning electron microscopy (SEM) and atomic force microscopy (AFM) describe the morphology and surface of crystals of zeolite catalysts. Transmission electron microscopy (TEM), including scanning mode (STEM), supported by electron diffraction (ED) methods can give crucial information about structure, especially when conventional methods are limited for the full description of solid catalysts, like zeolites. Often those techniques are supported by energy-dispersive X-ray spectroscopy (EDS) for the elemental analysis of the samples. This chapter is an overview focused on electron microscopy and related characterisation techniques as well as their utilisation in the fields of design, synthesis, and formation of crystals, characterisation, and performance of zeolites as heterogeneous catalysts.

Název v anglickém jazyce

Electron microscopy methods for characterisation of zeolite catalysts

Popis výsledku anglicky

Heterogeneous catalysis is crucial branch of chemistry, having unprecedented impact on nearly every aspect of our life. Zeolites as crystalline microporous solids have found application in many industrial catalytic processes like fluid catalytic cracking (FCC), hydrogenations, polymerisations, or alkylations. Their main advantages are defined pore structure resulting in so-called shape/size-selectivity and presence of Bronsted acid sites due to the trivalent atoms (such as Al) in the framework. The proper design of zeolite catalysts, study of the crystal formation, their morphology, structural properties, location of active species, porosity and structural determination of new materials often requires support by advanced characterisation techniques Among them, electron microscopy and related methods are often essential for the thorough description of mentioned features. Scanning electron microscopy (SEM) and atomic force microscopy (AFM) describe the morphology and surface of crystals of zeolite catalysts. Transmission electron microscopy (TEM), including scanning mode (STEM), supported by electron diffraction (ED) methods can give crucial information about structure, especially when conventional methods are limited for the full description of solid catalysts, like zeolites. Often those techniques are supported by energy-dispersive X-ray spectroscopy (EDS) for the elemental analysis of the samples. This chapter is an overview focused on electron microscopy and related characterisation techniques as well as their utilisation in the fields of design, synthesis, and formation of crystals, characterisation, and performance of zeolites as heterogeneous catalysts.

Druh

C - Kapitola v odborné knize

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název knihy nebo sborníku

Catalysis: Volume 32

ISBN

978-1-78801-947-7

Počet stran výsledku

37

Strana od-do

151-187

Počet stran knihy

223

Název nakladatele

Royal Society of Chemistry

Místo vydání

Londýn

Kód UT WoS kapitoly

—