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Molecules
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Electrochemical CO2 Conversion to Value-Added Products
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Electrochemical CO2 Conversion to Value-Added Products

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Electrochemistry".

Deadline for manuscript submissions: closed (28 February 2023) | Viewed by 6484

Special Issue Editor

Dr. Hesamoddin Rabiee

E-Mail Website
Guest Editor
Faculty of Engineering, Architecture and Information Technology, The University of Queensland, St. Lucia, QLD, Australia
Interests: electrocatalysis; electrochemical CO2 reduction; gas diffusion electrode; CO2 capture/utilization; membrane technology

Special Issue Information

Dear Colleagues,

Using electrochemical CO2 reduction reactions empowered by renewable electricity to commodify fuels and chemicals can help mitigate the detrimental impact of CO2 emissions, which are causing irreversible environmental deterioration. Multiple parameters need to be fine-tuned to achieve industrially feasible electrochemical conversion rates. The electrocatalyst type, reactor design and electrode configuration are crucial to achieving a high-rate CO2 reduction reaction.

This Special Issue, “Electrochemical CO2 Conversion to Value-added Products”, aims to cover the latest advances in the field of electrochemical CO2 conversion to value-added products. Research areas of interest include (but are not limited to) the following:

  • Development and characterization of advanced electrocatalysts;
  • Novel electrolyzer designs for high-rate and stable CO2 electrolysis;
  • New reactor configurations to produce high-concentration liquid products;
  • Development and characterization of gas diffusion electrode and novel electrode configurations, such as hollow-fiber (microtubular) electrodes;
  • In situ characterizations and operando spectroscopy techniques to unveil new concepts and insights into CO2 reduction reactions.

We invite you to submit original research works as well as review articles with a focus on electrochemical CO2 reduction reactions. Your contributions will help us provide a meaningful platform for researchers to explore the applications and potential of CO2 electrolysis.

Dr. Hesamoddin Rabiee
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Molecules is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • electrocatalysis
  • CO2 reduction reaction
  • advanced electrocatalysts
  • gas diffusion electrodes
  • electrode design
  • membrane–electrode assembly
  • flow cell reactor
  • high-rate CO2 conversion

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Published Papers (2 papers)

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Research

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11 pages, 3982 KiB  
Communication
Synthesis of Porous Carbon Nitride Nanobelts for Efficient Photocatalytic Reduction of CO2
by Zhiqiang Jiang, Yirui Shen and Yujing You
Molecules 2022, 27(18), 6054; https://doi.org/10.3390/molecules27186054 - 16 Sep 2022
Cited by 5 | Viewed by 1781
Abstract
Sustainable conversion of CO2 to fuels using solar energy is highly attractive for fuel production. This work focuses on the synthesis of porous graphitic carbon nitride nanobelt catalyst (PN-g-C3N4) and its capability of photocatalytic CO2 reduction. The [...] Read more.
Sustainable conversion of CO2 to fuels using solar energy is highly attractive for fuel production. This work focuses on the synthesis of porous graphitic carbon nitride nanobelt catalyst (PN-g-C3N4) and its capability of photocatalytic CO2 reduction. The surface area increased from 6.5 m2·g−1 (graphitic carbon nitride, g-C3N4) to 32.94 m2·g−1 (PN-g-C3N4). C≡N groups and vacant N2C were introduced on the surface. PN-g-C3N4 possessed higher absorbability of visible light and excellent photocatalytic activity, which was 5.7 and 6.3 times of g-C3N4 under visible light and simulated sunlight illumination, respectively. The enhanced photocatalytic activity may be owing to the porous nanobelt structure, enhanced absorbability of visible light, and surface vacant N-sites. It is expected that PN-g-C3N4 would be a promising candidate for CO2 photocatalytic conversion. Full article
(This article belongs to the Special Issue Electrochemical CO2 Conversion to Value-Added Products)
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Review

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22 pages, 5151 KiB  
Review
Cutting-Edge Electrocatalysts for CO2RR
by Nivetha Jeyachandran, Wangchao Yuan and Cristina Giordano
Molecules 2023, 28(8), 3504; https://doi.org/10.3390/molecules28083504 - 16 Apr 2023
Cited by 4 | Viewed by 4145
Abstract
A world-wide growing concern relates to the rising levels of CO2 in the atmosphere that leads to devastating consequences for our environment. In addition to reducing emissions, one alternative strategy is the conversion of CO2 (via the CO2 Reduction Reaction, [...] Read more.
A world-wide growing concern relates to the rising levels of CO2 in the atmosphere that leads to devastating consequences for our environment. In addition to reducing emissions, one alternative strategy is the conversion of CO2 (via the CO2 Reduction Reaction, or CO2RR) into added-value chemicals, such as CO, HCOOH, C2H5OH, CH4, and more. Although this strategy is currently not economically feasible due to the high stability of the CO2 molecule, significant progress has been made to optimize this electrochemical conversion, especially in terms of finding a performing catalyst. In fact, many noble and non-noble metal-based systems have been investigated but achieving CO2 conversion with high faradaic efficiency (FE), high selectivity towards specific products (e.g., hydrocarbons), and maintaining long-term stability is still challenging. The situation is also aggravated by a concomitant hydrogen production reaction (HER), together with the cost and/or scarcity of some catalysts. This review aims to present, among the most recent studies, some of the best-performing catalysts for CO2RR. By discussing the reasons behind their performances, and relating them to their composition and structural features, some key qualities for an “optimal catalyst” can be defined, which, in turn, will help render the conversion of CO2 a practical, as well as economically feasible process. Full article
(This article belongs to the Special Issue Electrochemical CO2 Conversion to Value-Added Products)
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