Straub, Sascha-Dominic (2021)
Copper foam catalysts in CO₂ electroreduction – Development of an experimental measuring procedure and the structural and chemical
modification of the catalyst.
Technische Universität
doi: 10.26083/tuprints-00019308
Ph.D. Thesis, Primary publication, Publisher's Version
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Item Type: | Ph.D. Thesis | ||||
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Type of entry: | Primary publication | ||||
Title: | Copper foam catalysts in CO₂ electroreduction – Development of an experimental measuring procedure and the structural and chemical modification of the catalyst | ||||
Language: | English | ||||
Referees: | Etzold, Prof. Dr. Bastian J. M. ; Mayrhofer, Prof. Dr. Karl | ||||
Date: | 2021 | ||||
Place of Publication: | Darmstadt | ||||
Collation: | vi, 125 Seiten | ||||
Date of oral examination: | 12 July 2021 | ||||
DOI: | 10.26083/tuprints-00019308 | ||||
Abstract: | The energy transition is one important approach to face the recent climate change problem [1, 2]. This includes providing the direct usage of electrical energy in all economic sectors [3]. The energy transition goes along with a raw materials change. Here, carbon dioxide (CO2) is an interesting raw material, which is produced in higher concentrations in power plants, waste incineration plants and the steel or cement industry [4, 5, 6]. Important for the usage of carbon dioxide as raw material will we a circular economy. Promising technologies therefore are technologies for capturing and converting carbon dioxide or to store it [7]. One major research focus of the recent years for converting CO2 is the electrochemical reduction of CO2 (CO2RR). Here, both aspects of raw materials change from fossil raw materials to CO2 and to directly use electrical energy for chemical conversions are combined. Different catalysts materials can be used for this reaction depending on the major product of interest. Along the synthesized products, the CO2RR catalysts can be classified in different groups [8, 9]. Among these materials, copper is the unique one to be able to produce hydrocarbons directly out of carbon dioxide [10]. Hori et al. is known as a pioneer for the CO2RR with copper catalysts and he was successful in studying fundamental knowledge about this reaction [11, 12]. Since it is important to increase the resulting current density and thus the productivity of copper catalysts, research was focused on copper catalysts with higher surface areas. Therefore, research focused on nanoparticles [13] or dentritic copper materials, like copper foams [14]. These copper foam materials showed high selectivities for ethylene [15], which is one of the most interesting products in CO2RR. Further investigations on the selectivity of copper foam materials and how to influence the product formation is of a high interest. Besides the selectivity issue, also to achieve high current densities is important. Both issues will be investigated in this thesis. |
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Status: | Publisher's Version | ||||
URN: | urn:nbn:de:tuda-tuprints-193087 | ||||
Classification DDC: | 500 Science and mathematics > 540 Chemistry | ||||
Divisions: | 07 Department of Chemistry > Fachgebiet Technische Chemie 07 Department of Chemistry > Ernst-Berl-Institut > Fachgebiet Technische Chemie |
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Date Deposited: | 07 Oct 2021 09:24 | ||||
Last Modified: | 05 Sep 2022 08:06 | ||||
URI: | https://tuprints.ulb.tu-darmstadt.de/id/eprint/19308 | ||||
PPN: | 487398564 | ||||
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