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Recent Advances in Plasma Application
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Recent Advances in Plasma Application

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Physical Chemistry and Chemical Physics".

Deadline for manuscript submissions: 30 April 2024 | Viewed by 6461

Special Issue Editor

Prof. Dr. Marek Wiśniewski

E-Mail Website
Guest Editor
Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina Street 7, 87-100 Toruń, Poland
Interests: carbonaceous materials; nanomaterials; adsorption; catalysis; surface chemistry
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues, 

The plasma state, especially when combined with solid surfaces, offers almost unlimited possibilities in terms of reactions. Hence, reactions at the interface with plasma are gaining increasing interest, not only for surface modification but also for the conversion of various gases.

Some of the simplest processes harnessing the plasma environment include solid-surface oxidation or reduction, thin solid metallic or non-metallic film formation, CO2 splitting or its hydrogenation to value-added chemicals and fuels, NH3 cracking, N2 fixation for NH3 or NOx synthesis, CH4 conversion into higher hydrocarbons, or VOC removal.

Thermodynamically impossible or difficult reactions become able to proceed at ambient pressure and temperature, thanks to the application of plasma catalysis due to the excitation of the gas molecules.

Although growing interest in reactions under a plasma state is observed in the literature, the mechanisms governing the synergy between the catalyst surface and excited particles are not yet understood, as the system is very complicated. Additional complexity arises from feedback as excited particles affect the catalyst surface and vice versa.

Further research is needed to better understand plasma–solid surface interactions, for discovering new applications and improving those that are already known.

The objective of the current Special Issue is to present the latest achievements in the field of plasma–solid surface interactions. These processes feature prominently worldwide in the field of catalysis. The main goal of this Special Issue of IJMS is to publish original research and short review articles that address the synthesis, structure, applications, and challenges of novel materials/catalysts working under plasma conditions and that reflect the state of the art in these applications.

It is my pleasure to invite you to submit a manuscript for this Special Issue.

Prof. Dr. Marek Wiśniewski
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. International Journal of Molecular Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. There is an Article Processing Charge (APC) for publication in this open access journal. For details about the APC please see here. 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

  • plasma modification
  • plasma catalysis
  • surface chemistry
  • surface physics

Published Papers (3 papers)

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Research

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15 pages, 4676 KiB  
Article
Splitting CO2 in Intense Pulsed Plasma Jets
by Adrian Scurtu, Dorina Ticoş, Maria Luiza Mitu, Constantin Diplașu, Nicoleta Udrea and Cătălin Mihai Ticoș
Int. J. Mol. Sci. 2023, 24(8), 6899; https://doi.org/10.3390/ijms24086899 - 07 Apr 2023
Viewed by 2011
Abstract
The splitting of CO2 was studied in a pulsed plasma discharge produced in a coaxial gun at voltages between ~1 and 2 kV and peak discharge currents of 7 to 14 kA. The plasma was ejected from the gun at a speed [...] Read more.
The splitting of CO2 was studied in a pulsed plasma discharge produced in a coaxial gun at voltages between ~1 and 2 kV and peak discharge currents of 7 to 14 kA. The plasma was ejected from the gun at a speed of a few km/s and had electron temperatures between 11 and 14 eV with peak electron densities ~2.4 × 1021 particles m−3. Spectroscopic measurements were carried out in the plasma plume produced at pressures between 1 and 5 Torr, and evidence of CO2 dissociation into oxygen and CO was found. An increased discharge current led to the observation of more intense spectra lines and the presence of new oxygen lines, which implies more dissociation channels. Several dissociation mechanisms are discussed, the main candidate being the splitting of the molecule by direct electron impact. Estimates of dissociation rates are made based on measured plasma parameters and interaction cross-sections available in the literature. A possible application of this technique is in future Mars missions where the coaxial plasma gun running in the atmosphere could be able to produce oxygen at a rate of the order of over 100 g per hour in a highly repetitive regime. Full article
(This article belongs to the Special Issue Recent Advances in Plasma Application)
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Review

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20 pages, 3342 KiB  
Review
Green Hydrogen Production through Ammonia Decomposition Using Non-Thermal Plasma
by Julia Moszczyńska, Xinying Liu and Marek Wiśniewski
Int. J. Mol. Sci. 2023, 24(18), 14397; https://doi.org/10.3390/ijms241814397 - 21 Sep 2023
Cited by 2 | Viewed by 1965
Abstract
Liquid hydrogen carriers will soon play a significant role in transporting energy. The key factors that are considered when assessing the applicability of ammonia cracking in large-scale projects are as follows: high energy density, easy storage and distribution, the simplicity of the overall [...] Read more.
Liquid hydrogen carriers will soon play a significant role in transporting energy. The key factors that are considered when assessing the applicability of ammonia cracking in large-scale projects are as follows: high energy density, easy storage and distribution, the simplicity of the overall process, and a low or zero-carbon footprint. Thermal systems used for recovering H2 from ammonia require a reaction unit and catalyst that operates at a high temperature (550–800 °C) for the complete conversion of ammonia, which has a negative effect on the economics of the process. A non-thermal plasma (NTP) solution is the answer to this problem. Ammonia becomes a reliable hydrogen carrier and, in combination with NTP, offers the high conversion of the dehydrogenation process at a relatively low temperature so that zero-carbon pure hydrogen can be transported over long distances. This paper provides a critical overview of ammonia decomposition systems that focus on non-thermal methods, especially under plasma conditions. The review shows that the process has various positive aspects and is an innovative process that has only been reported to a limited extent. Full article
(This article belongs to the Special Issue Recent Advances in Plasma Application)
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19 pages, 4582 KiB  
Review
Non-Thermal Plasma Application in Medicine—Focus on Reactive Species Involvement
by Julia Moszczyńska, Katarzyna Roszek and Marek Wiśniewski
Int. J. Mol. Sci. 2023, 24(16), 12667; https://doi.org/10.3390/ijms241612667 - 11 Aug 2023
Cited by 6 | Viewed by 1528
Abstract
Non-thermal plasma (NTP) application in medicine is a dynamically developing interdisciplinary field. Despite the fact that basics of the plasma phenomenon have been known since the 19th century, growing scientific attention has been paid in recent years to the use of plasma in [...] Read more.
Non-thermal plasma (NTP) application in medicine is a dynamically developing interdisciplinary field. Despite the fact that basics of the plasma phenomenon have been known since the 19th century, growing scientific attention has been paid in recent years to the use of plasma in medicine. Three most important plasma-based effects are pivotal for medical applications: (i) inactivation of a broad spectrum of microorganisms, (ii) stimulation of cell proliferation and angiogenesis with lower plasma treatment intensity, and (iii) inactivation of cells by initialization of cell death with higher plasma intensity. In this review, we explain the underlying chemical processes and reactive species involvement during NTP in human (or animal) tissues, as well as in bacteria inactivation, which leads to sterilization and indirectly supports wound healing. In addition, plasma-mediated modifications of medical surfaces, such as surgical instruments or implants, are described. This review focuses on the existing knowledge on NTP-based in vitro and in vivo studies and highlights potential opportunities for the development of novel therapeutic methods. A full understanding of the NTP mechanisms of action is urgently needed for the further development of modern plasma-based medicine. Full article
(This article belongs to the Special Issue Recent Advances in Plasma Application)
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