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Symmetry
Special Issues
Advances in the Capture and Transformation of Carbon Dioxide
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Advances in the Capture and Transformation of Carbon Dioxide

A special issue of Symmetry (ISSN 2073-8994). This special issue belongs to the section "Chemistry: Symmetry/Asymmetry".

Deadline for manuscript submissions: closed (15 May 2023) | Viewed by 3072

Special Issue Editor

Prof. Dr. Xinchen Kang

E-Mail Website
Guest Editor
Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
Interests: carbon dioxide electroreduction; material synthesis; electrocatalysis

Special Issue Information

Dear Colleagues,

The increase in atmospheric carbon dioxide is linked to climate changes. Hence, there is an urgent need to reduce the accumulation of carbon dioxide in the atmosphere. The capture followed by the utilisation of carbon dioxide as a raw material in the synthesis of chemicals offers a way to mitigate the increasing carbon dioxide buildup. Great efforts have been dedicated to the capture and transformation of carbon dioxide. Capturing or separating carbon dioxide from industrial gases is the first step for the transformation. By far, numerous porous materials including metal–organic frameworks, covalent–organic frameworks and porous carbons have attained excellent physical adsorption of carbon dioxide by designing their structure. Chemical absorption of carbon dioxide by Ionic liquids with task-specific functional group integrates the advantages of low cost and high absorption efficiency. Homogeneous and heterogeneous catalysis for the transformation of carbon dioxide have applied in industry. Electro- and photo- catalysis are booming in recent years, and the development of catalysts, solutions as well as device technology gives more potentials for their industrialisation. As for symmetry or asymmetry, the structure and morphology of materials affect the efficiency of carbon dioxide adsorption while the structure and functional group of ionic liquids determine the absorption capacity of carbon dioxide. The structure of catalysts, physicochemical property of solutions and the design of reactors greatly impact the activity for the transformation of carbon dioxide to fine chemicals and fuels. Therefore, research on symmetry or asymmetry is of great significance in the field of carbon dioxide capture and transformation.

The present Special Issue is open to contributions (original research papers, reviews, and perspective articles) related to recent advances in the capture and transformation of carbon dioxide. The topics of interest for this Special Issue include but are not limited to:

  • Carbon dioxide adsorption by porous materials;
  • Carbon dioxide absorption by task-specific ionic liquids;
  • Homogeneous/heterogeneous catalysis for the transformation of carbon dioxide;
  • Electrochemical conversion of carbon dioxide;
  • Photocatalytic conversion of carbon dioxide.

Prof. Dr. Xinchen Kang
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. Symmetry is an international peer-reviewed open access monthly 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 2400 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.

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (2 papers)

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Review

21 pages, 2646 KiB  
Review
Anomalous Small-Angle X-ray Scattering and Its Application in the Dynamic Reconstruction of Electrochemical CO2 Reduction Catalysts
by Weidong Cheng, Zhongjun Chen, Xuehui Wu, Zhaojun Wu, Xin Wang, Mengyuan Zhao, Huanyan Liu, Hongge Jia, Chaohui Wang, Xuefeng Wang, Zhonghua Wu and Xueqing Xing
Symmetry 2023, 15(5), 1034; https://doi.org/10.3390/sym15051034 - 7 May 2023
Cited by 2 | Viewed by 2739
Abstract
The electrochemical CO2 reduction reaction (CO2RR) is a promising approach for mitigating the greenhouse effect arising from anthropogenic CO2 emission. Nonetheless, poor product selectivity associated with electrochemical catalysts is the main technical problem for the application of CO2 [...] Read more.
The electrochemical CO2 reduction reaction (CO2RR) is a promising approach for mitigating the greenhouse effect arising from anthropogenic CO2 emission. Nonetheless, poor product selectivity associated with electrochemical catalysts is the main technical problem for the application of CO2RR technology. The catalytic performance of nano-catalysts is strongly dependent on their microstructural features. Anomalous small-angle X-ray scattering (ASAXS) is one of the most effective techniques for studying nanostructural change in an operando way, especially for complex systems and mixed-element catalyst situations. Furthermore, based on the research results of ASAXS, appropriate catalyst components and nanostructures can be designed to achieve stable catalytic performance of the catalyst, promote catalytic reaction rate, or improve catalytic reaction selectivity. In this paper, the basic concept, principle, and applications in different systems of ASAXS are reviewed thoroughly. Finally, the development prospect of ASAXS in the field of electrocatalysis is prospected. It is hoped that this review will further promote ASAXS technology to play a more far-reaching impact in the field of electrocatalytic CO2RR. Full article
(This article belongs to the Special Issue Advances in the Capture and Transformation of Carbon Dioxide)
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20 pages, 2734 KiB  
Review
The Capture and Transformation of Carbon Dioxide in Concrete: A Review
by Yixiao Wang, Xiaolin Li and Rui Liu
Symmetry 2022, 14(12), 2615; https://doi.org/10.3390/sym14122615 - 9 Dec 2022
Cited by 7 | Viewed by 4625
Abstract
Concrete is one of the most commonly used engineering materials in the world. Carbonation of cement-based materials balances the CO2 emissions from the cement industry, which means that carbon neutrality in the cement industry can be achieved by the carbon sequestration ability [...] Read more.
Concrete is one of the most commonly used engineering materials in the world. Carbonation of cement-based materials balances the CO2 emissions from the cement industry, which means that carbon neutrality in the cement industry can be achieved by the carbon sequestration ability of cement-based materials. Carbon dioxide is a symmetrical molecule and is difficult to separate. This work introduces the important significance of CO2 absorption by using cement-based materials, and summarizes the basic characteristics of carbonation of concrete, including the affected factors, mathematical modeling carbonization, and the method for detecting carbonation. From the perspective of carbon sequestration, it mainly goes through carbon capture and carbon storage. As the first stage of carbon sequestration, carbon capture is the premise of carbon sequestration and determines the maximum amount of carbon sequestration. Carbon sequestration with carbonization reaction as the main way has been studied a lot, but there is little attention to carbon capture performance. As an effective way to enhance the carbon sequestration capacity of cement-based materials, increasing the total amount of carbon sequestration can become a considerably important research direction. Full article
(This article belongs to the Special Issue Advances in the Capture and Transformation of Carbon Dioxide)
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