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Advanced Materials and Technologies for Hydrogen Storage and Generation

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Energy Materials".

Deadline for manuscript submissions: closed (20 February 2026) | Viewed by 2104

Special Issue Editor


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Guest Editor
Department of Petroleum Engineering, University of Houston, Houston, TX, USA
Interests: hydrogen energy; clean fuel energy; carbon capture; utilization; geothermal energy; petroleum engineering; storage research

Special Issue Information

Dear Colleagues,

The global transition toward clean energy has made hydrogen a central pillar in relation to the future of sustainable energy systems. Hydrogen offers a high energy density, clean combustion, and versatile applications across sectors; however, its widespread adoption is still challenged by critical limitations in storage and generation technologies. The development of advanced materials and innovative technologies plays a pivotal role in overcoming these barriers.

This Special Issue aims to highlight recent advances in the design, synthesis, characterization, and application of novel materials and technologies for efficient hydrogen storage and generation. Topics of interest include, but are not limited to, solid-state hydrogen storage materials (e.g., metal hydrides, complex hydrides, and MOFs), nanostructured catalysts for hydrogen production via water splitting, thermochemical and photocatalytic processes, and hybrid systems integrating storage and generation. Additionally, subsurface hydrogen production technologies are considered. Studies employing experimental approaches, modeling, or a combination of both are welcomed.

Particular attention will be given to interdisciplinary research that bridges materials science, chemical engineering, energy systems, and nanotechnology to develop scalable and sustainable hydrogen solutions.

We invite researchers from academia and industry to contribute original research articles, reviews, and perspectives that will advance the state of knowledge and practice in this important field.

Dr. Chinedu Junior Okere
Guest Editor

Manuscript Submission Information

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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. Materials 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

  • hydrogen storage materials
  • hydrogen generation technologies
  • metal hydrides
  • photocatalytic water splitting
  • electrochemical hydrogen production
  • nanomaterials for hydrogen applications
  • solid-state hydrogen storage
  • thermochemical hydrogen production
  • subsurface hydrogen production

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Published Papers (1 paper)

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Review

42 pages, 3363 KB  
Review
Large-Scale Hydrogen Storage in Deep Saline Aquifers: Multiphase Flow, Geochemical–Microbial Interactions, and Economic Feasibility
by Abdullahi M. Baru, Stella I. Eyitayo, Chinedu J. Okere, Abdurrahman Baru and Marshall C. Watson
Materials 2025, 18(22), 5097; https://doi.org/10.3390/ma18225097 - 10 Nov 2025
Cited by 1 | Viewed by 1717
Abstract
The development of large-scale, flexible, and safe hydrogen storage is critical for enabling a low-carbon energy system. Deep saline aquifers (DSAs) offer substantial theoretical capacity and broad geographic distribution, making them attractive options for underground hydrogen storage. However, hydrogen storage in DSAs presents [...] Read more.
The development of large-scale, flexible, and safe hydrogen storage is critical for enabling a low-carbon energy system. Deep saline aquifers (DSAs) offer substantial theoretical capacity and broad geographic distribution, making them attractive options for underground hydrogen storage. However, hydrogen storage in DSAs presents complex technical, geochemical, microbial, geomechanical, and economic challenges that must be addressed to ensure efficiency, safety, and recoverability. This study synthesizes current knowledge on hydrogen behavior in DSAs, focusing on multiphase flow dynamics, capillary trapping, fingering phenomena, geochemical reactions, microbial consumption, cushion gas requirements, and operational constraints. Advanced numerical simulations and experimental observations highlight the role of reservoir heterogeneity, relative permeability hysteresis, buoyancy-driven migration, and redox-driven hydrogen loss in shaping storage performance. Economic analysis emphasizes the significant influence of cushion gas volumes and hydrogen recovery efficiency on the levelized cost of storage, while pilot studies reveal strategies for mitigating operational and geochemical risks. The findings underscore the importance of integrated, coupled-process modeling and comprehensive site characterization to optimize hydrogen storage design and operation. This work provides a roadmap for developing scalable, safe, and economically viable hydrogen storage in DSAs, bridging the gap between laboratory research, pilot demonstration, and commercial deployment. Full article
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