Perspektive koordinacijske kemije za vezavo ogljikovega dioksida

diplomsko delo

Klavdija Bijek (Author), Franc Perdih (Mentor)

Abstract

V diplomskem delu sem raziskala problematiko ogljikovega dioksida in njegovo možnost vezave ter odstranjevanje iz okolja, saj na ta način zmanjšamo njegov vpliv na okolje. Ogljikov dioksid (CO2) je toplogredni plin, ki povzroča zniževanje pH vrednosti oceanov, vpliva na rastline in njihovo pospešeno rast, povzroča učinek tople grede in posledično globalno segrevanje, zaradi česar pride do taljenja ledenikov in naraščanja gladine oceanov. Da bi uspešno preprečili vplive na okolje se razvijajo metode za učinkovito vezavo v kovinsko organske komplekse z njihovo različno koordinacijo in različnimi ligandi. Kovinski kompleksi delujejo kot idealni heterogeni katalizatorji za aktivacijo CO2, omogočajo pa tudi številne kombinacije vezave različnih ligandov na kovinske ione. Nadaljnje raziskave se tako ukvarjajo predvsem z iskanjem najbolj optimalnih kombinacij kovinskih centrov in ligandov za nastanek kompleksov, ki bi omogočali vezavo CO2 pod blagimi pogoji, saj na ta način dosežemo tudi koncept »zelene kemije«. V delu so opisani sintezni postopki z uporabo CO2 za pridobivanje kemikalij, kot so: karbonati in karbamati, karboksilne kisline, metanol in sečnina. Opisan je tudi Kolbe-Schmittov postopek.

Keywords

ogljikov dioksid;koordinacijska kemija;koordinacija;kovinski kompleksi;vezava ogljikovega dioksida;diplomske naloge;

Data

Language:	Slovenian
Year of publishing:	2021
Typology:	2.11 - Undergraduate Thesis
Organization:	UL FKKT - Faculty of Chemistry and Chemical Technology
Publisher:	[K. Bijek]
UDC:	546.3:547:546.264-31(043.2)
COBISS:	71683075
Views:	394
Downloads:	93
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Perspectives of coordination chemistry for carbon dioxide binding
Secondary abstract:	In my thesis I researched the issue of carbon dioxide and its potential for binding, as well as disposal from the environment, as this reduces its impact on the environment. Carbon dioxide (CO2) is a greenhouse gas that causes ocean acidification, affects plants and their accelerated growth, causes the greenhouse effect and, as a result, global warming, leading to melting glaciers and rising ocean levels. In order to successfully prevent environmental impacts, methods are being developed to efficiently bind metal-organic complexes with their different coordination and different ligands. Metal complexes act as ideal heterogeneous catalysts for CO2 activation and their ability to bind in many combinations of different ligands to metal ions. Further research is therefore primarily concerned with finding the most optimal combinations of metal centers and ligands to form complexes, to bind CO2 under mild conditions, thus also achieving the concept of "green chemistry". The thesis describes synthetic processes using CO2 to produce chemicals such as: carbonates and carbamates, carboxylic acids, methanol and urea. The Kolbe-Schmidt process is also described.
Secondary keywords:	carbon dioxide;coordination;binding;metal complexes;
Type (COBISS):	Bachelor thesis/paper
Study programme:	1000374
Embargo end date (OpenAIRE):	1970-01-01
Thesis comment:	Univ. v Ljubljani, Fak. za kemijo in kemijsko tehnologijo, VSŠ Kemijska tehnologija
Pages:	32 str.
ID:	13112534