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JMSE
Special Issues
Future Fuels and Clean Energy Technologies for Sustainable Shipping
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Future Fuels and Clean Energy Technologies for Sustainable Shipping

A Special Issue of Journal of Marine Science and Engineering (ISSN 2077-1312) belonging to the section "Ocean Engineering".

Deadline for manuscript submissions: 15 December 2026 | Viewed by 417

Editors

Dr. Qiuwan Shen

E-Mail Website
Guest Editor
Marine Engineering College, Dalian Maritime University, Dalian 116026, China
Interests: hydrogen energy; new energy technology; PEMFC; lithium-ion; PEMEC; energy materials
Special Issues, Collections and Topics in MDPI journals
Dr. Shian Li

E-Mail Website
Guest Editor
Marine Engineering College, Dalian Maritime University, Dalian 116026, China
Interests: fuel cell technology; lithium-ion; hydrogen energy technology
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

In recent years, in order to meet the increasingly strict greenhouse gas emission requirements of the International Maritime Organization, major countries around the world have begun to attach importance to the development of future fuels and clean energy technologies for sustainable shipping development. This highlights the need for innovative future fuels, including green hydrogen, ammonia, methanol, biofuels, e-fuels, liquefied natural gas (LNG), and other next-generation marine fuels, as well as advanced clean energy power systems such as batteries, fuel cells, hybrid propulsion, renewable energy integration, and waste heat recovery.

This Special Issue aims to present and disseminate the most recent advances related to future fuels and clean energy technologies.

Dr. Qiuwan Shen
Dr. Shian Li
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-anonymized peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Journal of Marine Science and Engineering 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 2600 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

  • marine fuels
  • ammonia
  • green hydrogen
  • biofuels
  • liquefied natural gas (LNG)
  • low-emission fuel
  • batteries power
  • fuel cells
  • renewable energy integration
  • multi-energy complementarity
  • wind and photovoltaic power

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Published Papers (1 paper)

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Research

15 pages, 8878 KB  
Article
A High-Productivity and Near-Zero-CO Cu-Based Spinel/CeO2 Catalyst for On-Board Hydrogen Generation: Towards Sustainable Future Marine Fuels
by Zhaoyang Zhang, Yuan Wei, Jinyong Liu, Yufei Sun, Huasen Sang, Qiuwan Shen and Shian Li
J. Mar. Sci. Eng. 2026, 14(17), 1604; https://doi.org/10.3390/jmse14171604 - 31 Aug 2026
Viewed by 225
Abstract
In the current situation of carbon reduction in the shipping industry, hydrogen as a future energy source is the key to hydrogen-powered ships. Onboard methanol steam reforming (MSR) hydrogen production technology is of great significance in solving the hydrogen safety issues of hydrogen-powered [...] Read more.
In the current situation of carbon reduction in the shipping industry, hydrogen as a future energy source is the key to hydrogen-powered ships. Onboard methanol steam reforming (MSR) hydrogen production technology is of great significance in solving the hydrogen safety issues of hydrogen-powered ships. The key to this technology is to obtain MSR catalysts with lower CO selectivity and higher hydrogen production performance for use as hydrogen sources in high-temperature proton-exchange membrane fuel cells (HT-PEMFCs). A new Cu0.75Mg0.25Ga0.7Fe1.3O4 spinel catalyst was synthesized and subsequently dispersed at a nominal loading of 15 wt% onto three distinct oxide supports: CeO2, ZrO2, and Cr2O3. The synthesized samples were characterized, and their catalytic behavior in MSR was evaluated in a fixed-bed reactor. The results establish that the loading procedure leaves the bulk spinel structure intact. Among the series, the CeO2-supported specimen exhibits a higher degree of active-phase dispersion, a loosely packed and highly porous architecture, and more extensive interfacial contact between the spinel crystallites and the support. Relative to its ZrO2- and Cr2O3-supported counterparts, Cu0.75Mg0.25Ga0.7Fe1.3O4@CeO2 delivers markedly superior overall catalytic performance. Under conditions of 320 °C, a water-to-methanol molar ratio of 3:1, and a liquid hourly space velocity (LHSV) of 15 h−1, complete methanol conversion (100%) is achieved, together with a hydrogen production rate of 8.71 mmol·min−1·gcat−1 and CO selectivity approaching zero. The outstanding catalytic behavior may be attributed to the interface synergy between the spinel active center and CeO2 support, particularly the synergistic effect of oxygen vacancies and Ce4+/Ce3+ redox shuttle, which facilitates substrate replacement while inhibiting CO production. This catalyst architecture provides a promising material platform for on-line methanol reforming integrated with fuel cell power systems on hydrogen-powered ships. Full article
(This article belongs to the Special Issue Future Fuels and Clean Energy Technologies for Sustainable Shipping)
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