Nanostructured Materials and Nanoparticles as Efficient Catalysts: Design and Mechanism

A special issue of Catalysts (ISSN 2073-4344). This special issue belongs to the section "Nanostructured Catalysts".

Deadline for manuscript submissions: closed (31 December 2022) | Viewed by 1758

Special Issue Editor


E-Mail Website
Guest Editor
Laboratory of Physics Chemistry of Materials & Environment, Department of Physics, University of Ioannina, Ioannina, Greece
Interests: heterogeneous catalysis; wastewater treatment; catalyst characterization; catalyst synthesis; nanomaterials; quantum mechanics

Special Issue Information

Dear Colleagues,

This is a Special Issue of Catalysts, with the title Nanostructured Materials and  Nanoparticles as Efficient Catalysts: Design and Mechanism. The plan for this Special Issue to present and discuss recent advances and developments in state-of-the-art nanostructured materials’ and nanoparticles’ work as efficient catalysts, with a special focus on the design and catalytic mechanisms of these materials. Research articles, review articles, as well as short communications are warmly invited.

Recently, most catalytic processes and pollution control processes rely on nanocatalysts at a certain point; research into and the development of state-of-the-art nanocatalysts play a key role in achieving efficient and clean energy systems as well as a sustainable environment. This Special Issue aims to report on developments in the synthesis, characterization, and application of advanced nanostructured materials and nanoparticles for catalytic and photocatalytic applications. Furthermore, research into understanding the mechanisms of catalytic reactions is an important subject. In this Special Issue, we are inviting scientists to share their findings related to efforts for catalytic reactions using advanced nanostructured materials and nanoparticles as efficient catalysts.

Submit your paper and select the Journal “Catalysts” and the Special Issue “Nanostructured Materials and Nanoparticles as Efficient Catalysts: Design and Mechanism” via: MDPI submission system. Please contact the Guest Editor or the journal editor (cicy.chen@mdpi.com) for any queries. Our papers will be published on a rolling basis and we will be pleased to receive your submission once you have finished it.

Dr. Panagiota Stathi
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. 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 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

  • nanostructured catalysts
  • nanoparticle
  • catalyst synthesis
  • catalyst characterization
  • reaction mechanism
  • catalytic oxidation
  • catalytic reduction
  • photocatalysis
  • electrocatalysis

Published Papers (1 paper)

Order results
Result details
Select all
Export citation of selected articles as:

Research

10 pages, 3156 KiB  
Article
Selective CO2 Fixation to Styrene Oxide by Ta-Substitution of Lindqvist-Type [(Ta,Nb)6O19]8− Clusters
by Vorakit Chudatemiya, Mio Tsukada, Hiroki Nagakari, Soichi Kikkawa, Jun Hirayama, Naoki Nakatani, Takafumi Yamamoto and Seiji Yamazoe
Catalysts 2023, 13(2), 442; https://doi.org/10.3390/catal13020442 - 18 Feb 2023
Cited by 1 | Viewed by 1475
Abstract
Metal oxide clusters composed of group 5 metal ions, such as Nb and Ta, exhibit catalytic activities for CO2 fixation to styrene oxide (SO) due to the highly negative natural bonding charge of the terminal O atoms that could work [...] Read more.
Metal oxide clusters composed of group 5 metal ions, such as Nb and Ta, exhibit catalytic activities for CO2 fixation to styrene oxide (SO) due to the highly negative natural bonding charge of the terminal O atoms that could work as CO2 activation sites. In this study, tetrabutylammonium (TBA) salts of [TaxNb6−xO19]8− (TBA-TaxNb6−x, x = 0–6) were prepared and Ta-substitution effect on the catalytic properties of TBA-TaxNb6−x for CO2 fixation to SO was investigated. We found that TBA-Ta1Nb5 shows the highest styrene carbonate (SC) selectivity (95%) among TBA-TaxNb6−x, although the SO conversion monotonously increases with the incremental Ta substitution amount. The CO2 fixation to SO under various conditions and in situ X-ray absorption fine structure measurements reveal that CO2 is activated on both terminal O sites coordinated to the Ta (terminal OTa) and Nb (terminal ONb) sites, whereas the activation of SO proceeds on the terminal OTa and/or bridge O sites that are connected to Ta. Density functional theory (DFT) calculations reveal that the terminal OTa of TBA-Ta1Nb5 preferentially adsorbs CO2 compared with other ONb base sites. We conclude that the selective CO2 activation at terminal OTa of TBA-Ta1Nb5 without SO activation is a crucial factor for high SC selectivity in the CO2 fixation to SO. Full article
Show Figures

Graphical abstract

Back to TopTop