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Catalysis for Green Chemistry II
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Catalysis for Green Chemistry II

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

Deadline for manuscript submissions: 31 December 2024 | Viewed by 3783

Special Issue Editor

Prof. Dr. Lu Liu

E-Mail Website
Guest Editor
Division of Organic Chemistry, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
Interests: green organic synthesis
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We are pleased to announce the Second Edition of “Catalysis for Green Chemistry”.

Synthetic chemistry has greatly enriched people’s lives and dramatically changed the world in every aspect due to its impressive capacity to construct diverse functional groups and structurally complex molecules. However, traditional synthetic reactions normally suffer from low atom economy, harsh conditions, as well as hazardous waste production. Recently, the general principles of green chemistry have required the design of environmentally benign organic reactions, which is of great importance for the sustainable development of our society. Therein, it is pivotal to achieve new catalytic strategies for organic synthesis guided by the connotations of green chemistry.

The goal of this Special Issue is to collect original research papers and review articles devoted to all aspects of homogeneous and heterogeneous catalysis for green chemistry, including metal catalysis, organocatalysis, photocatalysis, and biocatalysis. Submission of manuscripts describing green catalytic technologies such as flow chemistry, multiphase catalysis, green reagents and solvents, catalyst immobilization, and recycling is also encouraged.

Prof. Dr. Lu Liu
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. Molecules is an international peer-reviewed open access semimonthly 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

  • green chemistry
  • green synthesis
  • catalysis
  • metal catalysis
  • organocatalysis

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Published Papers (4 papers)

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Research

10 pages, 1316 KiB  
Article
A Comparative Study of Ni-Based Catalysts Prepared by Various Sol–Gel Routes
by Atheer Al Khudhair, Karim Bouchmella, Radu Dorin Andrei, Vasile Hulea and Ahmad Mehdi
Molecules 2024, 29(17), 4172; https://doi.org/10.3390/molecules29174172 - 3 Sep 2024
Viewed by 1219
Abstract
The use of heterogeneous catalysts to increase the development of green chemistry is a rapidly growing area of research to save industry money. In this paper, mesoporous SiO2-Al2O3 mixed oxide supports with various Si/Al ratios were prepared using [...] Read more.
The use of heterogeneous catalysts to increase the development of green chemistry is a rapidly growing area of research to save industry money. In this paper, mesoporous SiO2-Al2O3 mixed oxide supports with various Si/Al ratios were prepared using two different sol–gel routes: hydrolytic sol–gel (HSG) and non-hydrolytic sol–gel (NHSG). The HSG route was investigated in both acidic and basic media, while the NHSG was explored in the presence of ethanol and diisopropyl ether as oxygen donors. The resulting SiO2-Al2O3 mixed oxide supports were characterized using EDX, N2 physisorption, powder XRD, 29Si, 27Al MAS-NMR and NH3-TPD. The mesoporous SiO2-Al2O3 supports prepared by NHSG seemed to be more regularly distributed and also more acidic. Consequently, a simple one-step NHSG (ether and alcohol routes) was selected to prepare mesoporous and acidic SiO2-Al2O3-NiO mixed oxide catalysts, which were then evaluated in ethylene oligomerization. The samples prepared by the NHSG ether route showed better activity than those prepared by the NHSG alcohol route in the oligomerization of ethylene at 150 °C. Full article
(This article belongs to the Special Issue Catalysis for Green Chemistry II)
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10 pages, 1316 KiB  
Article
Unveiling the Influence of Water Molecules for NF3 Removal by the Reaction of NF3 with OH: A DFT Study
by Jiaxin Liu, Yong Zhao, Xueqi Lian, Dongdong Li, Xueling Zhang, Jun Chen, Bin Deng, Xiaobing Lan and Youxiang Shao
Molecules 2024, 29(17), 4033; https://doi.org/10.3390/molecules29174033 - 26 Aug 2024
Viewed by 592
Abstract
The removal of nitrogen trifluoride (NF3) is of significant importance in atmospheric chemistry, as NF3 is an important anthropogenic greenhouse gas. However, the radical species OH and O(1D) in atmospheric conditions are nonreactive towards NF3. It [...] Read more.
The removal of nitrogen trifluoride (NF3) is of significant importance in atmospheric chemistry, as NF3 is an important anthropogenic greenhouse gas. However, the radical species OH and O(1D) in atmospheric conditions are nonreactive towards NF3. It is necessary to explore possible ways to remove NF3 in atmosphere. Therefore, the participation of water molecules in the reaction of NF3 with OH was discussed, as water is abundant in the atmosphere and can form very stable complexes due to its ability to act as both a hydrogen bond donor and acceptor. Systemic DFT calculations carried out at the CBS-QB3 and ωB97XD/aug-cc-pVTZ level of theory suggest that water molecules could affect the NF3 + OH reaction as well. The energy barrier of the SN2 mechanism was decreased by 8.52 kcal/mol and 10.58 kcal/mol with the assistance of H2O and (H2O)2, respectively. Moreover, the presence of (H2O)2 not only reduced the energy barrier of the reaction, but also changed the product channels, i.e., formation of NF2O + (H2O)2-HF instead of NF2OH + (H2O)2-F. Therefore, the removal of NF3 by reaction with OH is possible in the presence of water molecules. The results presented in this study should provide useful information on the atmospheric chemistry of NF3. Full article
(This article belongs to the Special Issue Catalysis for Green Chemistry II)
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10 pages, 1152 KiB  
Article
Iodophor-/H2O2-Mediated 2-Sulfonylation of Indoles and N-Methylpyrrole in Aqueous Phase
by Yashuai Liu, Yutong Yuan, Jing He, Sheng Han and Yan Liu
Molecules 2024, 29(15), 3564; https://doi.org/10.3390/molecules29153564 - 29 Jul 2024
Viewed by 720
Abstract
A convenient and efficient strategy for the preparation of 2-sulfonylindoles has been achieved through iodophor-/H2O2-mediated 2-sulfonylation of indoles with readily available sulfonyl hydrazides in the aqueous phase. Iodophor is commercially available and serves as the green catalyst and aqueous [...] Read more.
A convenient and efficient strategy for the preparation of 2-sulfonylindoles has been achieved through iodophor-/H2O2-mediated 2-sulfonylation of indoles with readily available sulfonyl hydrazides in the aqueous phase. Iodophor is commercially available and serves as the green catalyst and aqueous phase. A series of 2-sulfonylated products from indoles and N-methylpyrrole were synthesized in moderate yields in only 10 min. Control experiments were also conducted to reveal the mechanism of action. This method is environment friendly, easy to operate and suitable for a wide range of substrates. Full article
(This article belongs to the Special Issue Catalysis for Green Chemistry II)
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16 pages, 7133 KiB  
Article
Sepiolite-Supported Manganese Oxide as an Efficient Catalyst for Formaldehyde Oxidation: Performance and Mechanism
by Dongdong Li, Hongyan Liu, Xiaobao He, Yujie Yao, Haoming Liu, Jun Chen, Bin Deng and Xiaobing Lan
Molecules 2024, 29(12), 2826; https://doi.org/10.3390/molecules29122826 - 13 Jun 2024
Viewed by 838
Abstract
The current study involved the preparation of a number of MnOx/Sep catalysts using the impregnation (MnOx/Sep-I), hydrothermal (MnOx/Sep-H), and precipitation (MnOx/Sep-P) methods. The MnOx/Sep catalysts that were produced were examined for their ability [...] Read more.
The current study involved the preparation of a number of MnOx/Sep catalysts using the impregnation (MnOx/Sep-I), hydrothermal (MnOx/Sep-H), and precipitation (MnOx/Sep-P) methods. The MnOx/Sep catalysts that were produced were examined for their ability to catalytically oxidize formaldehyde (HCHO). Through the use of several technologies, including N2 adsorption–desorption, XRD, FTIR, TEM, H2-TPR, O2-TPD, CO2-TPD, and XPS, the function of MnOx in HCHO elimination was examined. The MnOx/Sep-H combination was shown to have superior catalytic activities, outstanding cycle stability, and long-term activity. It was also able to perform complete HCHO conversion at 85 °C with a high GHSV of 6000 mL/(g·h) and 50% humidity. Large specific surface area and pore size, a widely dispersed active component, a high percentage of Mn3+ species, and lattice oxygen concentration all suggested a potential reaction route for HCHO oxidation. This research produced a low-cost, highly effective catalyst for HCHO purification in indoor or industrial air environments. Full article
(This article belongs to the Special Issue Catalysis for Green Chemistry II)
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