In situ and operando techniques in catalyst characterisation and design
Authors:
- Przemysław Jodłowski,
- Joanna Łojewska
Abstract
This chapter intends to present the classical and modern techniques that are used for in situ characterisation of catalytic materials. Determination of the structure of the catalyst presents three main problems: (1) heterogeneous catalysis phenomena are limited to the outer surface of the material where the molecules adsorb and react, and for this reason, there are only a few methods able to assess catalyst surface structure and composition; (2) the catalyst surface under reaction conditions and upon the influence of the reacting agents is different from that occurring under ambient conditions, which limits the application of the analytical methods to those which operate at normal or elevated pressures and high temperatures, (3) catalytic materials are complex and heterogeneous, so many analytical methods, including surface imaging, should be employed in order to understand the structure–activity relationships. The remedy for the problems is the application of in situ analyses that rely on several complementary spectroscopic methods and utilise surface sensitive probe molecules. Different kinds of probe molecules are described: from universal probes to specific ones that enable the determination of acidic and basic activity. The IR, Raman and UV-Vis methods are presented here and described using examples from the literature. New trends in in situ experimentation involve time-resolved techniques for studying fast reactions, fluorescence methods and coupled techniques for surface in situ imaging.
- Record ID
- CUT350b23f2c75c4961a2b058790c3c7842
- Publication type
- Publication categories
- ; ;
- Author
- Pages
- 333-359
- Other elements of collation
- rys.; Bibliografia (na s.) - 355-359; Bibliografia (liczba pozycji) - 110; Oznaczenie streszczenia - Abstr.
- Book
- Koleżyński Andrzej, Andrzej Koleżyński Król Magdalena Magdalena Król (eds.): Molecular spectroscopy – experiment and theory : from molecules to functional materials, Challenges and Advances in Computational Chemistry and Physics, no. 26, 2019, Cham, Springer, Springer, ISBN 978-3-030-01354-7
- Keywords in English
- catalytic materials, in situ characterisation, heterogeneous catalysis phenomena, catalyst surface, analytical methods, spectroscopic methods, IR, Raman and UV-Vis methods
- DOI
- DOI:10.1007/978-3-030-01355-4_11 Opening in a new tab
- URL
- https://link.springer.com/chapter/10.1007%2F978-3-030-01355-4_11 Opening in a new tab
- Related project
- Nowoczesne rozwiązania technologiczne dedykowane do usuwania zanieczyszczeń z silników i turbin biogazowych. Strukturalny konwerter katalityczny LZO i NOx. . Project leader at PK: , ,
Projects financed by NCRD [Projekty finansowane przez NCBiR (NCBR (] - Language
- eng (en) English
- Score (nominal)
- 20
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT350b23f2c75c4961a2b058790c3c7842/
- URN
urn:pkr-prod:CUT350b23f2c75c4961a2b058790c3c7842
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.