Imidazolium co-catalyst for efficient electrochemical reduction of CO2 in acetonitrile

Sobhan Neyrizi

Research output: ThesisPhD Thesis - Research UT, graduation UT

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The combustion of carbon-based fuels has led to the persistent accumulation of carbon dioxide (CO2) in the Earth's atmosphere, resulting in far-reaching climate changes. To address this pressing global issue, there is an urgent need for sustainable and efficient methods to harness CO2 as an energy source, thus mitigating its environmental impact. One of the most promising approaches for CO2 utilization is electrochemical reduction, often carried out in water due to its green and abundant nature. However, the intrinsic electrochemical reactivity of water presents challenges in this process.

This PhD thesis explores the potential for improving carbon dioxide (CO2) reduction efficiency by transitioning from water-based electrochemical processes to non-aqueous media, using acetonitrile as a solvent. To enhance efficiency, imidazolium cations are introduced as co-catalysts and essential components of the electrolyte. The central aim of this work is to gain a fundamental understanding of the pivotal role of imidazolium cations in promoting non-aqueous electrochemical CO2 reduction. Additionally, it investigates their potential in facilitating efficient electrochemical conversion across a variety of affordable transition metals. By analyzing the structure-activity relationship for imidazolium electrolyte cations, this research provides insights into the selection or synthesis of effective electrolyte cations to enhance non-aqueous electrochemical CO2 reduction.
Original languageEnglish
QualificationDoctor of Philosophy
Awarding Institution
  • University of Twente
  • Mul, Guido, Supervisor
  • Hempenius, Mark A., Co-Supervisor
Award date30 Nov 2023
Place of PublicationEnschede
Print ISBNs978-90-365-5912-6
Electronic ISBNs978-90-365-5913-3
Publication statusPublished - 30 Nov 2023


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