Special Issue "Hydrides-based Hydrogen and Heat Storage Materials, Technologies and Applications"

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

Deadline for manuscript submissions: 31 October 2021.

Special Issue Editor

Dr. Marek Polanski
E-Mail Website
Guest Editor
Department of Advanced Materials and Technologies, Military University of Technology, 2 Urbanowicza Street, 00-908 Warsaw, Poland

Special Issue Information

Dear Colleagues,

Solid-state hydrogen storage materials (SSHM) have fascinated researchers all over the world for the last 70 years. Despite the fact that very ambitious DOE (Department of Energy, USA) expectations for mobile hydrogen containers are being constantly lowered, for most of the experts in the field, it is obvious that without some new breakthrough it is very unlikely that currently used solid-state materials will solve the hydrogen storage problem for transportation.

This does not mean, however, that the progress made in this field within those years brought manhood to nothing. In fact, this huge driving force caused great progress within the chemistry of hydrogen-containing materials and materials engineering. Binary hydrides considered as good candidates for storing hydrogen in solid state are now only a very small fraction of the investigated compounds. The group of prospective materials has been developed a lot and now includes, for example, intermetallic-based hydrides, complex hydrides, alanates, borohydrides, amides, and others. The progress involved not only discoveries of new materials but also methods for forcing many of them to be reversible in relatively mild temperature and pressure conditions.

Together with the great number of studied compounds, new experimental techniques were developed and improved to allow successful synthesis of materials, composites, and their effective modification with catalytic additives. The progress also involved characterisation techniques, which became more precise, faster, and more flexible.  

Materials considered years ago as a source of hydrogen for mobile applications recently became objects of study for less demanding stationary energy sources and heat storage materials for solar thermal applications, i.e., for solar thermal energy storage.

Because of the above-mentioned reasons, the current Special Issue is supposed to cover all aspects connected with the synthesis, characterisation, and application of the hydrides-based materials including, especially, but not only, new hydrides-based materials, new technologies for the synthesis of hydrogen storage materials, new characterisation tools and modifications of current techniques, new catalysts for the decomposition and synthesis of hydrides-based materials, practical examples of the application of solid-state hydrogen storage materials, and problems related to measurement techniques and data accuracy in this field.

It is our pleasure to invite you to submit a manuscript for this Special Issue. Full papers, communications, and reviews are expected to be submitted.

Dr. Marek Polanski
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 papers will be 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. 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 2000 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
  • heat storage
  • metal hydrides
  • complex hydrides

Published Papers (3 papers)

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Research

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Open AccessArticle
Enhancement of First Hydrogenation of Ti1V0.9Cr1.1 BCC Alloy by Cold Rolling and Ball Milling
Materials 2020, 13(14), 3106; https://doi.org/10.3390/ma13143106 - 12 Jul 2020
Viewed by 551
Abstract
In this study, we evaluated the effects of a mechanical treatment by cold rolling (CR) and ball milling (BM) on the first hydrogenation of Ti1V0.9Cr1.1 alloy. The as-cast alloy has a body-centered cubic (BCC) crystal structure, and the [...] Read more.
In this study, we evaluated the effects of a mechanical treatment by cold rolling (CR) and ball milling (BM) on the first hydrogenation of Ti1V0.9Cr1.1 alloy. The as-cast alloy has a body-centered cubic (BCC) crystal structure, and the first hydrogenation at room temperature under 20 bars of hydrogen is practically impossible. However, the samples mechanically activated by CR or BM readily absorbed hydrogen. The sample cold-rolled for one pass exhibited faster kinetics than the sample ball-milled for five minutes, but both samples reached the same storage capacity of 3.6 wt % hydrogen. Increasing the amount of rolling or the milling time decreased the hydrogen capacity. CR is considered the best and most efficient method for the activation of Ti1V0.9Cr1.1 alloy. Full article
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Open AccessFeature PaperArticle
Enhanced Stability of Li-RHC Embedded in an Adaptive TPX™ Polymer Scaffold
Materials 2020, 13(4), 991; https://doi.org/10.3390/ma13040991 - 22 Feb 2020
Cited by 2 | Viewed by 970
Abstract
In this work, the possibility of creating a polymer-based adaptive scaffold for improving the hydrogen storage properties of the system 2LiH+MgB2+7.5(3TiCl3·AlCl3) was studied. Because of its chemical stability toward the hydrogen storage material, poly(4-methyl-1-pentene) or in-short TPX [...] Read more.
In this work, the possibility of creating a polymer-based adaptive scaffold for improving the hydrogen storage properties of the system 2LiH+MgB2+7.5(3TiCl3·AlCl3) was studied. Because of its chemical stability toward the hydrogen storage material, poly(4-methyl-1-pentene) or in-short TPXTM was chosen as the candidate for the scaffolding structure. The composite system was obtained after ball milling of 2LiH+MgB2+7.5(3TiCl3·AlCl3) and a solution of TPXTM in cyclohexane. The investigations carried out over the span of ten hydrogenation/de-hydrogenation cycles indicate that the material containing TPXTM possesses a higher degree of hydrogen storage stability. Full article
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Review

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Open AccessFeature PaperReview
Magnesium-Based Materials for Hydrogen Storage—A Scope Review
Materials 2020, 13(18), 3993; https://doi.org/10.3390/ma13183993 - 09 Sep 2020
Cited by 5 | Viewed by 839
Abstract
Magnesium hydride and selected magnesium-based ternary hydride (Mg2FeH6, Mg2NiH4, and Mg2CoH5) syntheses and modification methods, as well as the properties of the obtained materials, which are modified mostly by mechanical synthesis or [...] Read more.
Magnesium hydride and selected magnesium-based ternary hydride (Mg2FeH6, Mg2NiH4, and Mg2CoH5) syntheses and modification methods, as well as the properties of the obtained materials, which are modified mostly by mechanical synthesis or milling, are reviewed in this work. The roles of selected additives (oxides, halides, and intermetallics), nanostructurization, polymorphic transformations, and cyclic stability are described. Despite the many years of investigations related to these hydrides and the significant number of different additives used, there are still many unknown factors that affect their hydrogen storage properties, reaction yield, and stability. The described compounds seem to be extremely interesting from a theoretical point of view. However, their practical application still remains debatable. Full article
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