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Recent Findings in Hydrogen Energy
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Recent Findings in Hydrogen Energy

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "A5: Hydrogen Energy".

Deadline for manuscript submissions: closed (31 July 2023) | Viewed by 11267

Special Issue Editor

Dr. Joydev Manna

E-Mail Website
Guest Editor
Hydrogen Energy Division, National Institute of Solar Energy, Gurugram 122003, Haryana, India
Interests: hydrogen production; electrolyser; catalysis; hydrogen storage; metal hydrides; complex hydrides; techno-economics of hydrogen production

Special Issue Information

Dear Colleagues,

Hydrogen has been attracting a lot of attention from researchers, policymakers, environmental activists, and industry as an environmentally sustainable fuel that is capable of addressing many climate change issues. However, the key challenges related to efficient hydrogen production, appropriate hydrogen storage methods, and its usage in energy and/or industrial applications have to be overcome before the transition to a hydrogen economy.

The Guest Editor is inviting submissions to a Special Issue of Energies on the subject area of “Findings in Hydrogen Energy”. This Special Issue seeks to publish papers on the recent advancements in the area of hydrogen energy which includes hydrogen production, storage, transportation and its applications. We would be very pleased if you would consider submitting your original research paper or a review article on any topic related to this theme.

Dr. Joydev Manna
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. Energies 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 production methods
  • Hydrogen storage
  • Application of Hydrogen
  • Hydrogen delivery and transport
  • Hydrogen sensor
  • Electrolyser
  • Fuel Cell
  • Economics of hydrogen production
  • Hydrogen refuelling
  • Hydrogen economy

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Published Papers (2 papers)

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Research

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14 pages, 7635 KiB  
Article
Free-Base Porphyrin Aggregates Combined with Nickel Phosphite for Enhanced Alkaline Hydrogen Evolution
by Bogdan-Ovidiu Taranu, Eugenia Fagadar-Cosma, Paula Sfirloaga and Maria Poienar
Energies 2023, 16(3), 1212; https://doi.org/10.3390/en16031212 - 22 Jan 2023
Viewed by 1210
Abstract
In response to the escalating global energy requests and the need to address them in a sustainable manner, researchers have identified hydrogen as an energy vector that provides a practical way to store and use energy from renewable sources. To make a step [...] Read more.
In response to the escalating global energy requests and the need to address them in a sustainable manner, researchers have identified hydrogen as an energy vector that provides a practical way to store and use energy from renewable sources. To make a step forward, the electrocatalytic properties for the hydrogen evolution reaction in an alkaline medium of graphite electrodes modified with combinations of nickel phosphite and free-base porphyrins were investigated voltammetrically. The sample obtained by combining the respective phosphite with 5,10,15,20-tetrakis(4-methoxyphenyl)porphyrin exhibited the highest catalytic activity, surpassing that observed for the specimens manufactured using the individual catalysts and thus providing enhanced water-splitting performance. The best electrode displayed an overpotential of 0.43 V (at i = −10 mA/cm2) and a Tafel slope of 0.14 V/dec. Since the catalytic activity of the compositions containing the metal salt and the porphyrins has not been previously studied, the investigation and its outcome constitute an original contribution to the growing water-splitting literature, providing new opportunities for obtaining better results than the ones reported for electrodes modified solely with the phosphite. Full article
(This article belongs to the Special Issue Recent Findings in Hydrogen Energy)
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Review

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18 pages, 3306 KiB  
Review
The Origin and Occurrence of Natural Hydrogen
by Lu Wang, Zhijun Jin, Xiao Chen, Yutong Su and Xiaowei Huang
Energies 2023, 16(5), 2400; https://doi.org/10.3390/en16052400 - 2 Mar 2023
Cited by 12 | Viewed by 9542
Abstract
Hydrogen is an attractive, clean, sustainable energy source primarily produced via industry. At present, most reviews on hydrogen mainly focus on the preparation and storage of hydrogen, while the development and utilization of natural hydrogen will greatly reduce its cost. Natural hydrogen has [...] Read more.
Hydrogen is an attractive, clean, sustainable energy source primarily produced via industry. At present, most reviews on hydrogen mainly focus on the preparation and storage of hydrogen, while the development and utilization of natural hydrogen will greatly reduce its cost. Natural hydrogen has been discovered in many geological environments. Therefore, based on extensive literature research, in this study, the distribution and sources of natural hydrogen were systematically sorted, and the identification method and occurrence state of natural hydrogen were examined and summarized. The results of this research show that hydrogen has been discovered in oceanic spreading centers, transform faults, passive margins, convergent margins, and intraplate settings. The primary sources of the hydrogen include alterations in Fe(II)-containing rocks, the radiolysis of water, degassed magma, and the reaction of water- and silica-containing rocks during the mechanical fracturing. Hydrogen can appear in free gas, it can be adsorbed and trapped in inclusions. Currently, natural hydrogen exploration is in its infancy. This systematic review helps to understand the origin, distribution, and occurrence pattern of natural hydrogen. In addition, it facilitates the exploration and development of natural hydrogen deposits, thus enabling the production of low-cost hydrogen. Full article
(This article belongs to the Special Issue Recent Findings in Hydrogen Energy)
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