Special Issue "Catalytic, Photocatalytic and Electrocatalytic Processes for the Valorisation of CO2"

A special issue of Catalysts (ISSN 2073-4344).

Deadline for manuscript submissions: 15 March 2018

Special Issue Editors

Guest Editor
Assoc. Prof. Ilenia Rossetti

Dip. Chimica, Università degli Studi di Milano, INSTM Unit Milano-Università and CNR-ISTM, via Golgi 19, 20133 Milano, Italy
Website | E-Mail
Interests: heterogeneous catalytic and photocatalytic processes; process simulation; kinetics; reactors design; process intensification; microreactors; renewable energy
Guest Editor
Prof. Gianguido Ramis

Dip. Ing. Chimica, Civile ed Ambientale, Università degli Studi di Genova and INSTM Unit Genova, P.le J.F. Kennedy 1, Genoa, Italy
Website | E-Mail
Interests: heterogeneous catalytic and photocatalytic processes; renewable energy; catalytic materials design; catalysts characterization; catalytic process development

Special Issue Information

Dear Colleagues,

Increasing attention is paid to develop effective technologies for the sequestration of CO2 and its storage. In a virtuous view, they should be followed by processes that can lead to its valorisation as chemical, e.g. for the regeneration of fuels, but also for the production of intermediates. These are usually energy demanding and rather slow processes, requiring energy input and catalysts. Some examples are the innovative strategies for the photoconversion or electroreduction of carbon dioxide. This special issue collects original research papers, reviews and commentaries focused on the challenges for the valorisation and conversion of CO2. Submissions are welcome especially (but not exclusively) in the following areas:

- Catalytic processes for the conversion of CO2
- Photocatalytic processes for the conversion of CO2
- Electrocatalytic processes for the conversion of CO2
- Process design issues for the valorisation of CO2
- Economic and life cycle assessment in the valorisation of CO2
- Innovative processes and reactors for CO2 conversion

Assoc. Prof. Ilenia Rossetti
Prof. Gianguido Ramis
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 papers will be 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. Catalysts 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 1000 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

  • Valorisation of CO2
  • Catalytic reduction of CO2
  • CO2 photoreduction
  • CO2 electroreduction
  • CO2 as building block
  • Catalysts for CO2 conversion

Published Papers (1 paper)

View options order results:
result details:
Displaying articles 1-1
Export citation of selected articles as:

Research

Open AccessArticle Surface Oxidation of Supported Ni Particles and Its Impact on the Catalytic Performance during Dynamically Operated Methanation of CO2
Catalysts 2017, 7(9), 279; doi:10.3390/catal7090279
Received: 1 August 2017 / Revised: 25 August 2017 / Accepted: 5 September 2017 / Published: 18 September 2017
PDF Full-text (10954 KB) | HTML Full-text | XML Full-text | Supplementary Files
Abstract
The methanation of CO2 within the power-to-gas concept was investigated under fluctuating reaction conditions to gather detailed insight into the structural dynamics of the catalyst. A 10 wt % Ni/Al2O3 catalyst with uniform 3.7 nm metal particles and a
[...] Read more.
The methanation of CO2 within the power-to-gas concept was investigated under fluctuating reaction conditions to gather detailed insight into the structural dynamics of the catalyst. A 10 wt % Ni/Al2O3 catalyst with uniform 3.7 nm metal particles and a dispersion of 21% suitable to investigate structural changes also in a surface-sensitive way was prepared and characterized in detail. Operando quick-scanning X-ray absorption spectroscopy (XAS/QEXAFS) studies were performed to analyze the influence of 30 s and 300 s H2 interruptions during the methanation of CO2 in the presence of O2 impurities (technical CO2). These conditions represent the fluctuating supply of H2 from renewable energies for the decentralized methanation. Short-term H2 interruptions led to oxidation of the most reactive low-coordinated metallic Ni sites, which could not be re-reduced fully during the subsequent methanation cycle and accordingly caused deactivation. Detailed evaluation of the extended X-ray absorption fine structure (EXAFS) spectra showed surface oxidation/reduction processes, whereas the core of the Ni particles remained reduced. The 300-s H2 interruptions resulted in bulk oxidation already after the first cycle and a more pronounced deactivation. These results clearly show the importance and opportunities of investigating the structural dynamics of catalysts to identify their mechanism, especially in power-to-chemicals processes using renewable H2. Full article
Figures

Journal Contact

MDPI AG
Catalysts Editorial Office
St. Alban-Anlage 66, 4052 Basel, Switzerland
E-Mail: 
Tel. +41 61 683 77 34
Fax: +41 61 302 89 18
Editorial Board
Contact Details Submit to Special Issue Edit a special issue Review for Catalysts
logo
loading...
Back to Top