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Microwave Chemistry in China
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Microwave Chemistry in China

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

Deadline for manuscript submissions: closed (15 July 2021) | Viewed by 5597

Special Issue Editor

Prof. Dr. Biao Jiang

E-Mail Website
Guest Editor
Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China
Interests: microwave-assisted synthesis; green chemistry and nanostructured materials

Special Issue Information

Dear Colleagues,

It is our pleasure to announce the launch of a new Special Issue of Molecules on “Microwave Chemistry in China”. This Special Issue invites important contributions describing advances in the use of microwave in the fields of chemistry, medicine, biomedical science, and materials, and engineering. The journal covers microwave-assisted synthesis of novel organic, organometallic, and inorganic molecules or complexes, kinetics and mechanistic studies of microwave-induced chemical reactions, and potential use of microwave irradiation in the fields of drug discovery, green chemistry, catalysis materials, and industrial process development.

Prof. Dr. Biao Jiang
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

  • microwave-assisted synthesis
  • green chemistry
  • organometallic chemistry
  • inorganic Chemistry
  • drug discovery
  • catalysis
  • nanoarchitectures
  • plastic waste treatment
  • microwave engineering

Published Papers (2 papers)

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Research

14 pages, 6909 KiB  
Article
Experimental Investigation on the Mass Diffusion Behaviors of Calcium Oxide and Carbon in the Solid-State Synthesis of Calcium Carbide by Microwave Heating
by Miao Li, Siyuan Chen, Huan Dai, Hong Zhao and Biao Jiang
Molecules 2021, 26(9), 2568; https://0-doi-org.brum.beds.ac.uk/10.3390/molecules26092568 - 28 Apr 2021
Cited by 6 | Viewed by 2039
Abstract
Microwave (MW) heating was proven to efficiently solid-synthesize calcium carbide at 1750 °C, which was about 400 °C lower than electric heating. This study focused on the investigation of the diffusion behaviors of graphite and calcium oxide during the solid-state synthesis of calcium [...] Read more.
Microwave (MW) heating was proven to efficiently solid-synthesize calcium carbide at 1750 °C, which was about 400 °C lower than electric heating. This study focused on the investigation of the diffusion behaviors of graphite and calcium oxide during the solid-state synthesis of calcium carbide by microwave heating and compared them with these heated by the conventional method. The phase compositions and morphologies of CaO and C pellets before and after heating were carefully characterized by inductively coupled plasma spectrograph (ICP), thermo gravimetric (TG) analyses, X-ray diffraction (XRD), scanning electron microscopy (SEM), and X-ray photoelectron spectroscopy (XPS). The experimental results showed that in both thermal fields, Ca and C inter-diffused at a lower temperature, but at a higher temperature, the formed calcium carbide crystals would have a negative effect on Ca diffusion to carbon. The significant enhancement of MW heating on carbon diffusion, thus on the more efficient synthesis of calcium carbide, manifested that MW heating would be a promising way for calcium carbide production, and that a sufficient enough carbon material, instead of CaO, was beneficial for calcium carbide formation in MW reactors. Full article
(This article belongs to the Special Issue Microwave Chemistry in China)
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11 pages, 2338 KiB  
Article
A Microwave-Assisted Boudouard Reaction: A Highly Effective Reduction of the Greenhouse Gas CO2 to Useful CO Feedstock with Semi-Coke
by Huan Dai, Hong Zhao, Siyuan Chen and Biao Jiang
Molecules 2021, 26(6), 1507; https://0-doi-org.brum.beds.ac.uk/10.3390/molecules26061507 - 10 Mar 2021
Cited by 8 | Viewed by 3117
Abstract
The conversion of CO2 into more synthetically flexible CO is an effective and potential method for CO2 remediation, utilization and carbon emission reduction. In this paper, the reaction of carbon-carbon dioxide (the Boudouard reaction) was performed in a microwave fixed bed [...] Read more.
The conversion of CO2 into more synthetically flexible CO is an effective and potential method for CO2 remediation, utilization and carbon emission reduction. In this paper, the reaction of carbon-carbon dioxide (the Boudouard reaction) was performed in a microwave fixed bed reactor using semi-coke (SC) as both the microwave absorber and reactant and was systematically compared with that heated in a conventional thermal field. The effects of the heating source, SC particle size, CO2 flow rate and additives on CO2 conversion and CO output were investigated. By microwave heating (MWH), CO2 conversion reached more than 99% while by conventional heating (CH), the maximum conversion of CO2 was approximately 29% at 900 °C. Meanwhile, for the reaction with 5 wt% barium carbonate added as a promoter, the reaction temperature was significantly reduced to 750 °C with an almost quantitative conversion of CO2. Further kinetic calculations showed that the apparent activation energy of the reaction under microwave heating was 46.3 kJ/mol, which was only one-third of that observed under conventional heating. The microwave-assisted Boudouard reaction with catalytic barium carbonate is a promising method for carbon dioxide utilization. Full article
(This article belongs to the Special Issue Microwave Chemistry in China)
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