Recent Advances of Hydrogen Storage in Carbon-Based Materials

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Energy Science and Technology".

Deadline for manuscript submissions: closed (31 October 2021) | Viewed by 2843

Special Issue Editor

Department of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, Greece
Interests: solid state chemistry; carbon nanostructures; graphene; chemistry of phyllomorphous materials
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Special Issue Information

Dear Colleagues,

The vast combustion of fossil fuels remains the dominant source of energy consumption. Consequently, carbon dioxide, which is the main combustion product in power plants and automotive applications, has been estimated to contribute more than 40% of anthropogenic CO2 emissions worldwide. A drastic solution to this problem is the replacement of fossil fuels with environmentally clean fuels such as hydrogen (H2).  Hydrogen constitutes an ideal ‘’green’’ fuel to replace non-renewable hydrocarbons because its unique combustion product is water, and because it is lightweight, nontoxic, and available in enormous amounts since it is the most abundant element in the universe. However, the utilization of molecular hydrogen as an energy carrier requires two basic steps to be accomplished, namely, a) hydrogen production and b) hydrogen storage.

To meet the second step, materials capable of absorbing large amounts of carbon dioxide safely and efficiently have become a major challenge over the last decades. In this aspect, carbon-based materials appear as highly attractive due to their multifunctional nature since they combine unique chemical and physical properties, elevated thermal conductivity, and high charge carrier mobility. For this topic, we encourage the design and development of novel functional carbon nanoparticles (CNPs) and their hybrids (with various structures, formations and shapes) with high surface areas and pore volumes and accessible and chemically tunable surface areas, which thus comprise ideal systems for H2-sorption applications.

For this research topic, the submission of manuscripts related to the synthesis, characterization, and study of carbon-based nanohybrids and their potential applications for H2 storage applications is welcomed. The submission of experimental and theoretical original research articles as well as review papers is also encouraged. 

Dr. Konstantinos Spyrou
Guest Editor

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Published Papers (1 paper)

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Research

18 pages, 5824 KiB  
Article
Hydrogen Storage in Untreated/Ammonia-Treated and Transition Metal-Decorated (Pt, Pd, Ni, Rh, Ir and Ru) Activated Carbons
by Mohamed F. Aly Aboud, Zeid A. ALOthman and Abdulaziz A. Bagabas
Appl. Sci. 2021, 11(14), 6604; https://0-doi-org.brum.beds.ac.uk/10.3390/app11146604 - 18 Jul 2021
Cited by 9 | Viewed by 2312
Abstract
Hydrogen storage may be the bottle neck in hydrogen economy, where hydrogen spillover is in dispute as an effective mechanism. In this context, activated carbon (AC) was doped with nitrogen by using ammonia gas, and was further decorated with platinum, palladium, nickel, rhodium, [...] Read more.
Hydrogen storage may be the bottle neck in hydrogen economy, where hydrogen spillover is in dispute as an effective mechanism. In this context, activated carbon (AC) was doped with nitrogen by using ammonia gas, and was further decorated with platinum, palladium, nickel, rhodium, iridium and ruthenium, via an ultrasound-assisted impregnation method, with average particle sizes of around 74, 60, 78, 61, 67 and 38 nm, respectively. The hydrogen storage was compared, before and after modification at both ambient and cryogenic temperatures, for exploring the spillover effect, induced by the decorating transition metals. Ammonia treatment improved hydrogen storage at both 298 K and 77 K, for the samples, where this enhancement was more remarkable at 298 K. Nevertheless, metal decoration reduced the hydrogen uptake of AC for all of the decorated samples other than palladium at cryogenic temperature, but improved it remarkably, especially for iridium and palladium, at room temperature. This observation suggested that metal decoration’s counter effect overcomes hydrogen spillover at cryogenic temperatures, while the opposite takes place at ambient temperature. Full article
(This article belongs to the Special Issue Recent Advances of Hydrogen Storage in Carbon-Based Materials)
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