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Catalysts
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Highly Dispersed Nanocatalysts
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Highly Dispersed Nanocatalysts

A topical collection in Catalysts (ISSN 2073-4344).

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Editor

Prof. Dr. Shihui Zou

E-Mail Website
Collection Editor
College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China
Interests: heterogeneous catalysis; methane activation; selective hydrogenation; ethylene production; nanomaterials
Special Issues, Collections and Topics in MDPI journals

Topical Collection Information

Dear Colleagues,

The decrease in particle size leads to a significant increase in the number of active sites available for reactions, establishing nanocatalysts as a groundbreaking advancement in catalysis. Efforts to maximize the utilization efficiency of these active sites have driven the development of highly dispersed nanocatalysts. Advances in synthetic methods, characterization techniques, and theoretical calculations have facilitated a progressive decrease in the size of nanocatalysts, evolving from nanoparticles and nanoclusters to single-atom catalysts. The unique geometric and electronic structures of highly dispersed nanocatalysts lead to enhanced efficiency and selectivity in catalytic reactions, which open new avenues for applications in green chemistry, energy conversion, sustainable synthesis, environmental remediation, etc.

In this Topic Collection, we will highlight and collect the latest progress in highly dispersed nanocatalysts. We encourage submissions of Original Research, Review, Mini-Review, and Perspectives that address the synthesis, characterization, application, and mechanism aspects of highly dispersed nanocatalysts. Specific subjects include, but are not limited to, the following:

  • Advanced design and synthesis of highly dispersed nanocatalysts.
  • Advanced characterization techniques for studying highly dispersed nanocatalysts.
  • The applications of highly dispersed nanocatalysts in hydrogenation, oxidation, acid-base catalysis, and photocatalysis, etc.
  • Theoretical calculations and microkinetic modeling to elucidate the catalytic mechanisms of highly dispersed nanocatalysts.

If you would like to submit papers to this Topic Collection or have any questions, please contact the in-house editor, Ms. Rita Lin (rita.lin@mdpi.com).

Prof. Dr. Shihui Zou
Collection 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 collection 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 2200 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

  • nanocatalysis
  • high dispersion
  • preparation
  • characterization
  • DFT calculations

Published Papers (2 papers)

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2025

Jump to: 2024

15 pages, 2470 KiB  
Article
Geometric Matching Effect Induced High Dispersion of Na2WO4 Nanocluster on Cristobalite Support for Efficient Methyl Chloride-to-Vinyl Chloride Conversion
by Nan Lu, Yifeng Shi, Yutao Ren, Yue Wang, Xinyi Sun, Zejing Wei, Xutao Chen and Jie Fan
Catalysts 2025, 15(4), 382; https://doi.org/10.3390/catal15040382 - 16 Apr 2025
Viewed by 262
Abstract
The oxidative coupling of methyl chloride (CH3Cl) to vinyl chloride (C2H3Cl) (MCTV) represents a promising yet challenging direct conversion route for C2H3Cl production. In this study, a novel catalyst, cristobalite silica, supported Na [...] Read more.
The oxidative coupling of methyl chloride (CH3Cl) to vinyl chloride (C2H3Cl) (MCTV) represents a promising yet challenging direct conversion route for C2H3Cl production. In this study, a novel catalyst, cristobalite silica, supported Na2WO4 nanoclusters, was fabricated by calcining an intermediate composite composed by β-zeolite and sodium tungstate (Na2WO4). The pore structure of this β-zeolite possesses a regular shape and suitable size distribution, providing an accurate geometric matching effect for Na2WO4 to homogeneously distribute in the entire β-zeolite matrix with high loading. Accordingly, the excellent dispersity of Na2WO4 nanocluster active sites is well maintained even after calcining at 750 °C, and the microporous β-zeolite matrix is completely converted to dense cristobalite phase silica after the calcination. The high-loading and well-dispersed Na2WO4 nanocluster leads to a superior performance in MCTV with a CH3Cl conversion of 81.5%, a C2H3Cl selectivity of 42.4%, and a C2H3Cl yield of 34.6%. Notably, the catalyst exhibits remarkable stability during the catalytic process. Full article
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Graphical abstract

2024

Jump to: 2025

11 pages, 2766 KiB  
Communication
One-Pot Synthesis of Highly Dispersed VO2 on g-C3N4 Nanomeshes for Advanced Oxidation
by Yangzhou Deng, Yuqi Zhang, Kunkun Wei, Yue Wang, Shihui Zou and Juanjuan Liu
Catalysts 2024, 14(12), 892; https://doi.org/10.3390/catal14120892 - 4 Dec 2024
Cited by 1 | Viewed by 994
Abstract
Advanced oxidation catalyzed by metal oxides is a promising approach for degrading organic pollutants in wastewater. A critical strategy to enhance the performance of these catalysts is optimizing the dispersion of their active components through innovative synthesis methods. In this study, we report [...] Read more.
Advanced oxidation catalyzed by metal oxides is a promising approach for degrading organic pollutants in wastewater. A critical strategy to enhance the performance of these catalysts is optimizing the dispersion of their active components through innovative synthesis methods. In this study, we report a one-pot synthesis of g-C3N4 nanomeshes supported with highly dispersed VO2 catalysts (V-g-C3N4) for the advanced oxidation of methylene blue (MB). The characterization results reveal that the involvement of VCl3 in the pyrolysis of melamine facilitates the formation of g-C3N4 nanomeshes with abundant amino groups (NH/NH2). The strong interaction between vanadia species and amino groups prevents VO2 particles from agglomerating, resulting in a significantly higher vanadia dispersion than V-g-C3N4-im synthesized via the traditional impregnation method. V-g-C3N4 exhibits a sophisticated microstructure and surface structure, which leads to a rate constant 2.3-fold higher than V-g-C3N4-im in the catalytic degradation of methylene blue using H2O2 as the oxidant. X-ray photoelectron spectroscopy, trapping experiments, and electron paramagnetic resonance measurements reveal that the rapid adsorption and fast diffusion of MB over g-C3N4 nanomeshes, together with the efficient H2O2 activation into ·OH radicals via the V4+/V5+ redox cycle, synergistically contribute to the superior MB removal efficiency of V-g-C3N4. Moreover, V-g-C3N4 demonstrates no significant decrease in activity even after the fourth cycle, indicating its excellent stability during the pollutant removal process. Full article
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