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Gases
Special Issues
5th Anniversary of Gases—Feature Papers on Gas to Fuels
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5th Anniversary of Gases—Feature Papers on Gas to Fuels

A special issue of Gases (ISSN 2673-5628).

Deadline for manuscript submissions: 31 December 2026 | Viewed by 553

Special Issue Editors

Prof. Dr. Kumar Patchigolla

E-Mail Website
Guest Editor
Net Zero Industry Innovation Centre, Teesside University, Middlesbrough TS2 1DJ, UK
Interests: renewable energy; carbon capture and storage; concentrating solar power; biomass and waste; carbon; climate and risk
Special Issues, Collections and Topics in MDPI journals
Dr. Abdelghafour Zaabout

E-Mail Website
Guest Editor
Applied Chemistry and Engineering Research Centre of Excellence (ACER CoE), Mohammed VI Polytechnic University (UM6P), Benguerir, Morocco
Interests: renewable energy; carbon capture and storage; concentrating solar power; biomass and waste; carbon; climate and risk
Dr. Ma'moun Al-Rawashdeh

E-Mail Website
Guest Editor
College of Science and Engineering, Hamad Bin Khalifa University, Doha, Qatar
Interests: reactor engineering; process intensification; methane conversion; CO2 capture and utilization; hydrogen production; chemical recycling; sustainable fuels; piston reactor

Special Issue Information

Dear Colleagues,

As the world accelerates toward net‑zero targets, the conversion of CO2 into sustainable fuels has never been more vital. Cutting‑edge research is transforming carbon dioxide into valuable fuels—such as methanol, aviation fuels, and gasoline—using catalysts, renewable electricity, and sunlight. These innovations not only enable true drop‑in fuels but also advance a circular carbon economy by emulating nature’s own blueprint through photocatalysis, photoelectrochemistry, and advanced electrochemical thermochemical technologies.

Yet, the journey from laboratory breakthroughs to commercial deployment demands significant progress. Enhancing conversion efficiencies, reducing energy intensity, and achieving cost‑effective, scalable systems remain key challenges—and opportunities—for global impact.

To celebrate its 5th anniversary, Gases is proud to announce a Special Issue dedicated to marking five years of innovations and the latest advances in sustainable fuel development, carbon utilisation, power to X pathways, bio-hybrid approaches with low energy, and low-cost solutions with commercial potential.

We welcome high‑quality submissions including original research articles, comprehensive review papers, industrial perspectives and technical notes and case studies showcasing pilot‑ or commercial‑scale applications.

If your work pushes the boundaries of CO2 utilisation, renewable fuels, or next‑generation energy systems, we encourage you to share it with the global research community through this Special Issue.

Prof. Dr. Kumar Patchigolla
Dr. Abdelghafour Zaabout
Dr. Ma'moun Al-Rawashdeh
Guest Editors

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 250 words) can be sent to the Editorial Office for assessment.

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. Gases is an international peer-reviewed open access quarterly 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 1200 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

  • carbon to fuels
  • circular economy
  • bio-hybrid pathways
  • carbon negative technologies
  • pilot and commercial scale demonstrations

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (1 paper)

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20 pages, 7466 KB  
Article
Synergistic Effect of Nickel and Carbon Defects on Reverse Boudouard Reaction Toward Sustainable Chemical Looping
by Ahmed M. S. Soliman, Yahia H. Ahmad, Roman Tschentscher, Duncan Akporiaye and Ma’moun Al-Rawashdeh
Gases 2026, 6(2), 23; https://doi.org/10.3390/gases6020023 - 12 May 2026
Viewed by 198
Abstract
The integration of catalytic methane decomposition (CMD) with CO2 gasification (Reverse Boudouard Reaction) offers a promising chemical looping route for carbon-negative hydrogen and syngas production. This work systematically investigates the gasification reactivity of six carbon morphologies, CNTs, CNFs, activated carbon, graphite, graphene, [...] Read more.
The integration of catalytic methane decomposition (CMD) with CO2 gasification (Reverse Boudouard Reaction) offers a promising chemical looping route for carbon-negative hydrogen and syngas production. This work systematically investigates the gasification reactivity of six carbon morphologies, CNTs, CNFs, activated carbon, graphite, graphene, and CMD-derived carbon, with and without Ni addition. First, activity tests and characterization (XRD, XPS, Raman) revealed that CMD-derived carbon outperformed all other benchmarks due to its highly amorphous nature (sp3/sp2 = 0.98), which provides a high density of reactive sites. Second, kinetic analysis showed that the incorporation of 5 wt% Ni on CMD carbon reduced the activation energy (Ea) from 435.3 kJ mol−1 to 114.6 kJ/mol, the lowest among all samples. This 74% reduction confirms that structural defects in CMD carbon act as anchoring sites for Ni, facilitating a strong metal–support interaction (MSI) that promotes CO2 activation. Third, an investigation into structural synergy revealed that higher Ni loadings (>5 wt%) increased the activation energy (up to 171.2 kJ mol−1). This trend is attributed to Ni agglomeration and weakened MSI, which reduces the active catalytic interface. These findings demonstrate that the efficiency of CO2 valorization is highly sensitive to carbon morphology, providing a clear optimization strategy for integrated chemical looping methane-to-syngas energy cycles. Full article
(This article belongs to the Special Issue 5th Anniversary of Gases—Feature Papers on Gas to Fuels)
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