CO2 Electrochemical Reduction and Conversion

A topical collection in C (ISSN 2311-5629). This collection belongs to the section "CO2 Utilization and Conversion".

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Editors


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Guest Editor
Laboratório Associado para a Química Verde-Rede de Química e Tecnologia, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
Interests: chemical engineering; green chemistry; supercritical fluid (CO2) technology; catalysis, alternative solvents; carbon dioxide utilization; biomass-derived platform chemicals
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Guest Editor
LAQV, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus de Caparica, 2829-516 Caparica, Portugal
Interests: green chemistry, in particular in CO2 utilization; functional materials; energy storage systems; electrochemistry; ionic liquid technologies and sustainable separations processes including supercritical fluid technologies

Topical Collection Information

Dear Colleagues,

Solutions to curb the constantly rising concentration of carbon dioxide in the atmosphere, already in excess of 400 ppm, are urgently needed. The electrochemical reduction of CO2, including photo-electrochemical reduction, is considered one among many potentially disruptive CO2 conversion technologies. Carbon dioxide is an abundant, non-flammable and attractive raw material. Beyond the formation of fuels, electrocatalytic processes can sequester carbon dioxide in a wide spectrum of chemical commodities, turning a chemical industry currently based on fossil energy into a renewable and circular industry. The electrochemical conversion of carbon dioxide has been studied for more than 100 years. However, a constantly increasing number of publications on electrochemical reactions involving CO2 highlights the renewed interest of the scientific community in such technologies.

The main objective of this section of C–Journal of Carbon Research is to compile relevant and recent discoveries in the area of the valorisation of carbon dioxide through electrochemical processes. Some key, but not exclusive, topics for this collection are:

  • Design and performance evaluation of new catalytic systems and electrodes;
  • Mechanistic investigations of reactions;
  • Computer-based studies to aid the design of more efficient processes;
  • Construction of innovative or improved reactors and systems paving the way to commercialization;
  • Scale-up studies;
  • Techno-economical assessment and life cycle analysis.

We invite authors to submit comprehensive research articles, reviews, communications, or letters representing both experimental and theoretical studies on the electrochemical conversion of carbon dioxide.

Dr. Małgorzata E. Zakrzewska
Dr. Ana S. Reis-Machado,
Guest Editors

Manuscript Submission Information

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Keywords

  • Carbon dioxide utilisation
  • Carbon dioxide conversion
  • (Photo)-Electrochemical CO2 reduction
  • (Photo)-Electrocatalysts
  • Electrode
  • Electrolyte
  • Modelling
  • Upscaling
  • Techno-economic assessment
  • Life cycle analysis

Published Papers (1 paper)

2023

10 pages, 2316 KiB  
Communication
Electrocatalytic Enhancement of CO Methanation at the Metal–Electrolyte Interface Studied Using In Situ X-ray Photoelectron Spectroscopy
by Christoph W. Thurner, Leander Haug, Daniel Winkler, Christoph Griesser, Matthias Leitner, Toni Moser, Daniel Werner, Marco Thaler, Lucas A. Scheibel, Thomas Götsch, Emilia Carbonio, Julia Kunze-Liebhäuser, Engelbert Portenkirchner, Simon Penner and Bernhard Klötzer
C 2023, 9(4), 106; https://doi.org/10.3390/c9040106 - 08 Nov 2023
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Abstract
For the direct reduction of CO2 and H2O in solid oxide electrolysis cells (SOECs) with cermet electrodes toward methane, a fundamental understanding of the role of elemental carbon as a key intermediate within the reaction pathway is of eminent interest. [...] Read more.
For the direct reduction of CO2 and H2O in solid oxide electrolysis cells (SOECs) with cermet electrodes toward methane, a fundamental understanding of the role of elemental carbon as a key intermediate within the reaction pathway is of eminent interest. The present synchrotron-based in situ near-ambient-pressure X-ray photoelectron spectroscopy (NAP-XPS) study shows that alloying of Ni/yttria-stabilized-zirconia (YSZ) cermet electrodes with Cu can be used to control the electrochemical accumulation of interfacial carbon and to optimize its reactivity toward CO2. In the presence of syngas, sufficiently high cathodic potentials induce excess methane on the studied Ni/yttria-stabilized-zirconia (YSZ)-, NiCu/YSZ- and Pt/gadolinium-doped-ceria (GDC) cermet systems. The hydrogenation of carbon, resulting from CO activation at the triple-phase boundary of Pt/GDC, is most efficient. Full article
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