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Molecules
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Activation and Conversion of Light Alkanes
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Activation and Conversion of Light Alkanes

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

Deadline for manuscript submissions: closed (1 October 2022) | Viewed by 6224

Special Issue Editor

Dr. Xin Liu

grade E-Mail Website
Guest Editor
State Key Laboratory of Fine Chemicals, Department of Chemistry, Dalian University of Technology, Dalian 116024, China
Interests: nonhomogeneous catalysis; theoretical chemistry; gases adsorption; computational chemistry; reaction mechanisms
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The conversion of light alkanes has received considerable attention due to the abundance of propane, ethane, and methane as fractions of crude oil resulting from oil refineries and the extraction of natural and shale gases. These light alkanes are of great economic value as starting materials when used as feed stocks for chemicals. Many catalysts—both heterogeneous and homogeneous in nature—have been developed for the conversion of light alkanes, involving dehydrogenation, dehydroaromatization, selective oxidation, and oxidative coupling, among other approaches. Differing from their heterogeneous counterparts, homogeneous catalysts have well-defined molecular structures and also offer the possibility for detailed investigation of the mechanisms of selective activation of C–H bonds of light alkanes in many processes of particular interest, such as in selective oxidation and C–C coupling. There are still plenty of opportunities for the development of novel approaches for chemical conversion of light alkanes.

This Special Issue of the journal Molecules is, thus, devoted to highlighting the recent progress in the design, synthesis, characterization, investigation, and application of novel catalysts for efficient and selective conversion of light alkanes.

Dr. Xin 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

  • heterogeneous catalysis
  • homogeneous catalysis
  • photocatalysis
  • oxidation
  • transition metal complexes
  • light alkanes

Published Papers (2 papers)

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Review

18 pages, 5367 KiB  
Review
Recent Insights into Cu-Based Catalytic Sites for the Direct Conversion of Methane to Methanol
by Min Mao, Lingmei Liu and Zhaohui Liu
Molecules 2022, 27(21), 7146; https://doi.org/10.3390/molecules27217146 - 22 Oct 2022
Cited by 5 | Viewed by 2055
Abstract
Direct conversion of methane to methanol is an effective and practical process to improve the efficiency of natural gas utilization. Copper (Cu)-based catalysts have attracted great research attention, due to their unique ability to selectively catalyze the partial oxidation of methane to methanol [...] Read more.
Direct conversion of methane to methanol is an effective and practical process to improve the efficiency of natural gas utilization. Copper (Cu)-based catalysts have attracted great research attention, due to their unique ability to selectively catalyze the partial oxidation of methane to methanol at relatively low temperatures. In recent decades, many different catalysts have been studied to achieve a high conversion of methane to methanol, including the Cu-based enzymes, Cu-zeolites, Cu-MOFs (metal-organic frameworks) and Cu-oxides. In this mini review, we will detail the obtained evidence on the exact state of the active Cu sites on these various catalysts, which have arisen from the most recently developed techniques and the results of DFT calculations. We aim to establish the structure–performance relationship in terms of the properties of these materials and their catalytic functionalities, and also discuss the unresolved questions in the direct conversion of methane to methanol reactions. Finally, we hope to offer some suggestions and strategies for guiding the practical applications regarding the catalyst design and engineering for a high methanol yield in the methane oxidation reaction. Full article
(This article belongs to the Special Issue Activation and Conversion of Light Alkanes)
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Graphical abstract

27 pages, 15380 KiB  
Review
Recent Advances on Gallium-Modified ZSM-5 for Conversion of Light Hydrocarbons
by Zhe Feng, Xin Liu, Yu Wang and Changgong Meng
Molecules 2021, 26(8), 2234; https://doi.org/10.3390/molecules26082234 - 13 Apr 2021
Cited by 16 | Viewed by 3514
Abstract
Light olefins are key components of modern chemical industry and are feedstocks for the production of many commodity chemicals widely used in our daily life. It would be of great economic significance to convert light alkanes, produced during the refining of crude oil [...] Read more.
Light olefins are key components of modern chemical industry and are feedstocks for the production of many commodity chemicals widely used in our daily life. It would be of great economic significance to convert light alkanes, produced during the refining of crude oil or extracted during the processing of natural gas selectively to value-added products, such as light alkenes, aromatic hydrocarbons, etc., through catalytic dehydrogenation. Among various catalysts developed, Ga-modified ZSM-5-based catalysts exhibit superior catalytic performance and stability in dehydrogenation of light alkanes. In this mini review, we summarize the progress on synthesis and application of Ga-modified ZSM-5 as catalysts in dehydrogenation of light alkanes to olefins, and the dehydroaromatization to aromatics in the past two decades, as well as the discussions on in-situ formation and evolution of reactive Ga species as catalytic centers and the reaction mechanisms. Full article
(This article belongs to the Special Issue Activation and Conversion of Light Alkanes)
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