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Catalysts
Special Issues
Novel Nanocomposites with Enhanced Catalytic Performance: Synthesis and Structure
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Novel Nanocomposites with Enhanced Catalytic Performance: Synthesis and Structure

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

Deadline for manuscript submissions: closed (29 February 2024) | Viewed by 12279

Special Issue Editor

Dr. Zhao Wang

E-Mail Website
Guest Editor
National Engineering Research Centre of Industry Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
Interests: nanotechnology; plasma chemistry; CO2 conversion; heterogeneous catalysis

Special Issue Information

Dear Colleagues,

Considering your significant contribution and outstanding achievements in the research field of nanomaterials, we would like to cordially invite you to submit papers to the Special Issue entitled “Novel Nanocomposites with Enhanced Catalytic Performance: Synthesis and Structure”, to be published in Catalysts (MDPI, ISSN 2073-4344 and IF: 3.9). The submission deadline is 29 February 2024. The Guest Editor of this Special Issue is Dr. Zhao Wang (Tianjin University, China).

The scope of this Special Issue covers, but is not limited to, the following topics: (i) preparation of novel nanocomposite materials; (ii) surfaces and interfaces of nanocomposite materials; (iii) multifunctional nanocomposite catalysts;  (Ⅳ) theory, physics, and chemistry of nanocomposite catalysts; and (v) advanced characterization methods for nanocomposite materials.

It would be a great honor for us to receive high-quality articles from your research group. We would greatly appreciate it if you could confirm whether you are able to contribute to this Special Issue by replying to this email within TWO WEEKS. If you have any questions related to this Special Issue, please do not hesitate to contact us.

We are looking forward to receiving your outstanding paper submission. 

Dr. Zhao Wang
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 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

  • nanosheet
  • two-dimensional materials
  • hydrogel composite
  • catalysis
  • multifunctional nanocomposite
  • surfaces and interfaces of nanocomposite
  • defect engineering

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

Published Papers (3 papers)

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Research

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17 pages, 3744 KiB  
Article
Selective Hydrogenation of Acetylene over Pd-Co/C Catalysts: The Modifying Effect of Cobalt
by Daria V. Yurpalova, Tatyana N. Afonasenko, Igor P. Prosvirin, Andrey V. Bukhtiyarov, Maxim A. Panafidin, Zakhar S. Vinokurov, Mikhail V. Trenikhin, Evgeny Yu. Gerasimov, Tatyana I. Gulyaeva, Larisa M. Kovtunova and Dmitry A. Shlyapin
Catalysts 2023, 13(4), 739; https://doi.org/10.3390/catal13040739 - 13 Apr 2023
Cited by 9 | Viewed by 2599
Abstract
Novel bimetallic Pd-Co catalysts supported on the carbon material Sibunit were synthesized by an incipient wetness impregnation method and used for ethylene production by selective acetylene hydrogenation. It has been established that an increase in the Pd:Co molar ratio from 1:0 to 1:2 [...] Read more.
Novel bimetallic Pd-Co catalysts supported on the carbon material Sibunit were synthesized by an incipient wetness impregnation method and used for ethylene production by selective acetylene hydrogenation. It has been established that an increase in the Pd:Co molar ratio from 1:0 to 1:2 in 0.5%Pd-Co/C catalysts, treated in hydrogen at 500 °C, leads to an increase in the ethylene selectivity from 60 to 67% (T = 45 °C). The selectivity does not change with a further increase in the modifier concentration. The catalysts were investigated by TPR-H2, XRD, TEM HR, EDS, and XPS methods. It was shown that palladium and cobalt in the 0.5%Pd-Co/C samples form Pd(1−x)Cox phases of solid solutions with different compositions depending on the Pd:Co ratio. The cobalt concentration in the Pd-Co particles increases with an increase in the Pd:Co ratio up to 1:2 and then remains at a constant level. In addition, monometallic Co particles were present in the samples with the Pd:Co ratio higher then 1:2. The optimal combination of catalytic properties (the ethylene yield is 62–63%) is typical for catalysts with a Pd:Co molar ratio of 1:2–1:4. which is mainly due to the presence of bimetallic particles containing ~41–43% by at. of cobalt. Full article
(This article belongs to the Special Issue Novel Nanocomposites with Enhanced Catalytic Performance: Synthesis and Structure)
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13 pages, 3226 KiB  
Article
Application of Low-Cost Plant-Derived Carbon Dots as a Sustainable Anode Catalyst in Microbial Fuel Cells for Improved Wastewater Treatment and Power Output
by Ankit Kumar, S. Shankara Narayanan, Bhim Sen Thapa, Soumya Pandit, Kumud Pant, Anoop Kumar Mukhopadhyay and Shaik Gouse Peera
Catalysts 2022, 12(12), 1580; https://doi.org/10.3390/catal12121580 - 5 Dec 2022
Cited by 9 | Viewed by 3066
Abstract
Microbial fuel cells (MFC) can generate electric energy from wastewater which can be enhanced further by anode catalysts. The recovery of electrons produced by oxidation of organics catalyzed by bacteria in the anode was enhanced when carbon dots(CDs) were added into the MFC. [...] Read more.
Microbial fuel cells (MFC) can generate electric energy from wastewater which can be enhanced further by anode catalysts. The recovery of electrons produced by oxidation of organics catalyzed by bacteria in the anode was enhanced when carbon dots(CDs) were added into the MFC. In this present study, a novel strategy for designing anode material and the fabrication of a high-efficient and environmentally friendly anode for energy generation from wastewater was reported. The CDs were synthesized by the pyrolysis of a peanut shell at the temperature of 250 °C for 2 h with a heating rate of 10 °C min−1. Thus synthesized CDs were characterized by transmission electron microscopy (TEM), UV/Vis spectroscopy, and fluorescence spectroscopy. The TEM analysis showed morphology with an average size of 1.62 nm. The UV/Vis absorbance of the CDs shows a wide absorption band without a characteristic peak. The excitation spectrum of CDs recorded at the emission wavelength of 440 nm exhibits a peak around 320 nm. CDs were investigated as an anode material in a MFC utilizing acetate as the organic substrate. The average chemical oxygen demand (COD) removal in closed circuit operation mode was 89%. The maximum power density production (7.2 W/m3) was observed in MFC containing 1 mg/cm2 CD-impregnated anode (CDsIA). The CDsIA provides the ability to promote efficient biofilm formation. These results emphasize the application of CD-based electrodes in MFCs for the simultaneous treatment of wastewater and electricity generation while also providing additional benefits. Full article
(This article belongs to the Special Issue Novel Nanocomposites with Enhanced Catalytic Performance: Synthesis and Structure)
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Review

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22 pages, 2909 KiB  
Review
Nanoparticle–Hydrogel Based Sensors: Synthesis and Applications
by Junyu Zhang and Zhao Wang
Catalysts 2022, 12(10), 1096; https://doi.org/10.3390/catal12101096 - 22 Sep 2022
Cited by 15 | Viewed by 6134
Abstract
Hydrogels are hydrophilic three-dimensional (3D) porous polymer networks that can easily stabilize various nanoparticles. Loading noble metal nanoparticles into a 3D network of hydrogels can enhance the synergy of the components. It can also be modified to prepare intelligent materials that can recognize [...] Read more.
Hydrogels are hydrophilic three-dimensional (3D) porous polymer networks that can easily stabilize various nanoparticles. Loading noble metal nanoparticles into a 3D network of hydrogels can enhance the synergy of the components. It can also be modified to prepare intelligent materials that can recognize external stimuli. The combination of noble metal nanoparticles and hydrogels to produce modified or new composite materials has attracted considerable attention as to the use of these materials in sensors. However, there is limited review literature on nanoparticle–hydrogel-based sensors. This paper presents the detailed strategies of synthesis and design of the composites, and the latest applications of nanoparticle–hydrogel materials in the sensing field. Finally, the current challenges and future development directions of nanoparticle–hydrogel-based sensors are proposed. Full article
(This article belongs to the Special Issue Novel Nanocomposites with Enhanced Catalytic Performance: Synthesis and Structure)
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