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Advanced Heterogeneous Catalysis

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

Deadline for manuscript submissions: 30 April 2025 | Viewed by 423

Special Issue Editor


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Guest Editor
School of Materials Science and Engineering, Wuhan Textile University, Wuhan, China
Interests: thermal catalysis; electrocatalysis; surface reaction process

Special Issue Information

Dear Colleagues,

In modern industry, heterocatalysis is a crucial chemical process, so it is also a research focus. Heterogeneous catalysis involves catalytic reactions at the interface between two different phases, of which the most common is at the solid-fluid interface. For example, the production of ammonia by the Haber–Bosch process, nitric acid by the Ostwald process, and ethylene oxide by the Wacker process all involve heterogeneous catalysis.

In this Special Issue, we will report on and discuss current research on the role and use of catalysis in chemical processes, as well as new/functional materials and nanotechnology in catalysis. Also, the various techniques and characterization methods will be discussed.

Dr. Chen Li
Guest Editor

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Keywords

  • thermal catalysis
  • electrochemistry
  • photocatalysis
  • energy catalysis
  • environmental catalysis

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Published Papers (1 paper)

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Research

21 pages, 4530 KiB  
Article
Synthesis of Solketal Catalyzed by Acid-Modified Pyrolytic Carbon Black from Waste Tires
by Jolanta Kowalska-Kuś, Anna Malaika, Agnieszka Held, Aldona Jankowska, Ewa Janiszewska, Michał Zieliński, Krystyna Nowińska, Stanisław Kowalak, Klaudia Końska and Krzysztof Wróblewski
Molecules 2024, 29(17), 4102; https://doi.org/10.3390/molecules29174102 (registering DOI) - 29 Aug 2024
Viewed by 297
Abstract
Solketal, a widely used glycerol-derived solvent, can be efficiently synthesized through heterogeneous catalysis, thus avoiding the significant product losses typically encountered with aqueous work-up in homogeneous catalysis. This study explores the catalytic synthesis of solketal using solid acid catalysts derived from recovered carbon [...] Read more.
Solketal, a widely used glycerol-derived solvent, can be efficiently synthesized through heterogeneous catalysis, thus avoiding the significant product losses typically encountered with aqueous work-up in homogeneous catalysis. This study explores the catalytic synthesis of solketal using solid acid catalysts derived from recovered carbon blacks (rCBs), which are obtained through the pyrolysis of end-of-life tires. This was further converted into solid acid catalysts through the introduction of acidic functional groups using concentrated H2SO4 or 4-benzenediazonium sulfonate (BDS) as sulfonating agents. Additionally, post-pyrolytic rCB treated with glucose and subsequently sulfonated with sulfuric acid was also prepared. Comprehensive characterization of the initial and modified rCBs was performed using techniques such as elemental analysis, powder X-ray diffraction, thermogravimetric analysis, a back titration method, and both scanning and transmission electron microscopy, along with X-ray photoelectron spectroscopy. The catalytic performance of these samples was evaluated through the batch mode glycerol acetalization to produce solketal. The modified rCBs exhibited substantial catalytic activity, achieving high glycerol conversions (approximately 90%) and high solketal selectivity (around 95%) within 30 min at 40 °C. This notable activity was attributed to the presence of -SO3H groups on the surface of the functionalized rCBs. Reusability tests indicated that only rCBs modified with glucose demonstrated acceptable catalytic stability in subsequent acetalization cycles. The findings underscore the potential of utilizing end-of-life tires to produce effective acid catalysts for glycerol valorization processes. Full article
(This article belongs to the Special Issue Advanced Heterogeneous Catalysis)
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