Z dušikom dopirani grafenski elektrokatalizatorji za redukcijo CO2

Vojska, Tine (author), Genorio, Boštjan (mentor)

Vse od sredine 20. stoletja, z razcvetom industrijske revolucije, se koncentracija CO2 v atmosferi nenehno povečuje. Podnebne spremembe postajajo vse bolj pereča tema, za katere je glavni razlog prav CO2. Znanstveniki v zadnjih desetletjih vse pogosteje opozarjajo, da je zmanjšanje emisij CO2 nujno za zajezitev podnebnih sprememb. Zanimiv pristop k zmanjšanju emisij CO2 je elektrokemijska redukcija CO2. Obetavna lastnost te metode je, da poleg izničenja CO2, dobimo kot produkt kemikalije in goriva, v katerih je shranjena energija. Ker je CO2 stabilna molekula in se pri njeni redukciji pojavi več težav, je potrebno za njeno učinkovito redukcijo razviti robusten in selektiven katalizator. Sam sem se osredotočil na katalizatorje na osnovi z dušikom dopiranega grafena, ki so pokazali dobro aktivnost za redukcijo CO2. V prvem delu diplomske naloge sem opisal grafen, z dušikom dopiran grafen, rentgensko fotoelektronsko spektroskopijo in predstavil redukcijo CO2 ter njene ovire. V drugem delu sem opisal katalizatorje na osnovi z dušikom dopiranih grafenov, ki so vodili redukcijo v produkte kot so: format, etanol, eten in ogljikov monoksid.

• Language: Slovenian
• Keywords: z dušikom dopiran grafen, elektrokemijska redukcija CO2, elektrokatalizator
• Work type: Bachelor thesis/paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: FKKT - Faculty of Chemistry and Chemical Technology
• Year: 2021
• PID: 20.500.12556/RUL-130150
• COBISS.SI-ID: 83131651
• Publication date in RUL: 10.09.2021

VOJSKA, Tine, 2021, Z dušikom dopirani grafenski elektrokatalizatorji za redukcijo CO2 [online]. Bachelor’s thesis. [Accessed 16 June 2025]. Retrieved from: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=eng&id=130150

Secondary language

• Language: English
• Title: Nitrogen-doped graphene electrocatalysts for CO2 reduction

Abstract

Ever since the middle of the 20th century, with the development of industrial revolutions, the concentration of CO2 in the atmosphere has been constantly increasing. Climate change is becoming an increasingly pressing issue, the main reason for which is CO2. In recent decades, scientists have increasingly warned that reducing CO2 emissions is essential for curbing climate change. An interesting approach to reducing CO2 emissions is electrochemical CO2 reduction. A promising feature of this method is that, in addition to emitting CO2, we obtain as a product chemicals and fuels in which energy is stored. Because CO2 is a stable molecule and several problems arise in its reduction, it is necessary to develop a robust and selective catalyst for its effective reduction. I myself focused on catalysts based on nitrogen-doped graphene catalysts, which showed good activity to reduce CO2. In the first part of the thesis, I described graphene, nitrogen-doped graphene, X-ray photoelectron spectroscopy and presented CO2 reduction and its barriers. In the second part, I described catalysts with nitrogen-doped graphene, which have led the reduction to the products such as: formate, ethanol, ethene and carbon monoxide.

• Keywords: nitrogen-doped graphene, electrochemical reduction of CO2, electrocatalyst