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Advances in Heterogeneous Catalysis of Nanomaterials

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Nanochemistry".

Deadline for manuscript submissions: closed (30 September 2023) | Viewed by 2769

Special Issue Editors


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Guest Editor
Departamento de Química Orgánica, Universidad de Córdoba, Edificio Marie Curie (C-3), Ctra Nnal IV-A, Km 396, E14014 Cordoba, Spain
Interests: heterogeneous catalysis; biomass valorization; flow chemistry; mechanochemistry
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Departamento de Química Orgánica, Universidad de Córdoba, Edificio Marie Curie (C-3), Ctra Nnal IV-A, Km 396, E14014 Cordoba, Spain
Interests: heterogeneous catalysis; biomass valorization; flow chemistry; mechanochemistry

Special Issue Information

Dear Colleagues,

Heterogeneous catalysis has played an important role in the development of more sustainable chemistry for many research areas, and for the chemical industry, where many processes involve catalysts. Hence, any single advance in the catalysis field, including the development of novel catalytic materials, catalyst synthesis strategies, and sustainable catalytic processes, may have a considerable impact on societal progress and will ensure a greener environment for forthcoming generations, addressing global energy and environmental challenges. 

This Special Issue aims to provide an overview of the recent trends in heterogeneous catalysis and is open to a wide variety of research topics that may range from the use of classical catalytic materials (zeolites, metal oxides, etc.) to other recent developments such as the design of single-atom catalysts and the use of sustainable synthesis strategies, including mechanochemistry. In addition, works in areas such as photocatalysis, continuous flow processes, etc. applied for biomass valorization or drug synthesis, among others in which heterogeneous catalysts plays a key role, will also be considered for publication in this Special Issue.

Dr. Antonio Pineda
Dr. Noelia Lázaro
Guest Editors

Manuscript Submission Information

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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

  • heterogeneous catalysis
  • sustainable synthesis
  • biocatalysts
  • biomass conversion
  • drug synthesis
  • pollutant degradation

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Published Papers (1 paper)

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Research

13 pages, 4755 KiB  
Article
The Competition between 4-Nitrophenol Reduction and BH4 Hydrolysis on Metal Nanoparticle Catalysts
by Shalaka Varshney, Dan Meyerstein, Ronen Bar-Ziv and Tomer Zidki
Molecules 2023, 28(18), 6530; https://doi.org/10.3390/molecules28186530 - 8 Sep 2023
Cited by 3 | Viewed by 2284
Abstract
Assessing competitive environmental catalytic reduction processes via NaBH4 is essential, as BH4 is both an energy carrier (as H2) and a reducing agent. A comprehensive catalytic study of the competition between the borohydride hydrolysis reaction (BHR, releasing H [...] Read more.
Assessing competitive environmental catalytic reduction processes via NaBH4 is essential, as BH4 is both an energy carrier (as H2) and a reducing agent. A comprehensive catalytic study of the competition between the borohydride hydrolysis reaction (BHR, releasing H2) and 4-nitrophenol reduction via BH4 on M0- and M/M′ (alloy)-nanoparticle catalysts is reported. The results reveal an inverse correlation between the catalytic efficiency for BH4 hydrolysis and 4-nitrophenol reduction, indicating that catalysts performing well in one process exhibit lower activity in the other. Plausible catalytic mechanisms are discussed, focusing on the impact of reaction products such as 4-aminophenol and borate on the rate and yield of BH4 hydrolysis. The investigated catalysts were Ag0, Au0, Pt0, and Ag/Pt-alloy nanoparticles synthesized without any added stabilizer. Notably, the observed rate constants for the 4-nitrophenol reduction on Ag0, Ag-Pt (9:1), and Au0 are significantly higher than the corresponding rate constants for BH4 hydrolysis, suggesting that most reductions do not proceed through surface-adsorbed hydrogen atoms, as observed for Pt0 nanoparticles. This research emphasizes the conflicting nature of BH4 hydrolysis and reduction processes, provides insights for designing improved catalysts for competitive reactions, and sheds light on the catalyst properties required for each specific process. Full article
(This article belongs to the Special Issue Advances in Heterogeneous Catalysis of Nanomaterials)
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