Estimation of efficiency of using hydrogen and aluminum as environmentally-friendly energy carriers

Kler, A. M.; Tyurina, Elina; Potanina, Yulia M.; Mednikov, Aleksandr

doi:10.1016/j.ijhydene.2015.09.041

Cited by 18 publications

(7 citation statements)

References 7 publications

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“…Hydrogen is an environmentally friendly energy carrier which has been used for mobile applications since it has more advantages than the other chemical energy carriers. − Hydrogen is the lightest and most abundant element in the universe. However, it needs to be stored at high densities for mobile applications.…”

Section: Introductionmentioning

confidence: 99%

Phase Stability, Phase Mixing, and Phase Separation in Fluorinated Alkaline Earth Hydrides

Varunaa¹,

Ravindran

2017

J. Phys. Chem. C

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Alkaline-earth hydrides (AH2) are considered as potential hydrogen storage material. Due to high decomposition temperature and slow sorption kinetics, these hydrides cannot be used for energy storage applications. As fluorine is more electronegative than hydrogen, substitution of hydrogen by fluorine will bring anisotropic bonding interaction, and hence, it may improve the hydrogen storage properties. Hence, the structural stability, electronic structure, and chemical bonding of AH2 and fluorinated AH2 (AH2–x F x ) are delineated using ab initio calculations. From the calculated enthalpy of formation we have predicted that AH2–x F x are relatively more stable than the corresponding pure hydrides. The positive and very low value of enthalpy of mixing for AH2–x F x imply that single-phase of AH2–x F x may form at reasonable temperatures. The band structure and density of states (DOS) calculations reveal that AH2–x F x are insulators. Partial DOS, charge density, electron localization function, and crystal orbital Hamiltonian population analyses conclude that these compounds are governed mainly by ionic bonding. The calculated H site energy increases as the fluorination increases and thus fluorination bring extra stability in the lattice. The present results suggest that hydrogen closer to fluorine can be removed more easily than that far away from fluorine. Hence, the fluorination brings disproportionation in the bonding between the constituents.

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Section: Introductionmentioning

confidence: 99%

Phase Stability, Phase Mixing, and Phase Separation in Fluorinated Alkaline Earth Hydrides

Varunaa¹,

Ravindran

2017

J. Phys. Chem. C

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“…The depletion of fossil-fuel reserves and increasing environmental pollution caused by the large-scale application of fossil fuel make hydrogen an attractive alternative energy carrier and for the production of chemical products (e.g., methanol, ammonia) [1]. Currently, hydrogen is mostly generated from steam reforming of natural gas for industrial application.…”

Section: Introductionmentioning

confidence: 99%

Gasification characteristics of hydrochar and pyrochar derived from sewage sludge

Gai

Chen

et al. 2016

Energy

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“…This reaction is typically carried out at high temperatures (700-1100 • C) and moderate pressures, with a catalyst often used to enhance the reaction rate [3,9]. Commonly employed catalysts include nickel (Ni) or other supported metal catalysts.…”

Section: Fossil Fuelsmentioning

confidence: 99%

A Comprehensive Review of Bimetallic Nanoparticle–Graphene Oxide and Bimetallic Nanoparticle–Metal–Organic Framework Nanocomposites as Photo-, Electro-, and Photoelectrocatalysts for Hydrogen Evolution Reaction

Makhafola,

Balogun,

Modibane

2024

Energies

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This review extensively discusses current developments in bimetallic nanoparticle–GO and bimetallic nanoparticle–MOF nanocomposites as potential catalysts for HER, along with their different synthesis methodologies, structural characteristics, and catalytic mechanisms. The photoelectrocatalytic performance of these catalysts was also compared based on parameters such as Tafel slope, current density, onset potential, turnover frequency, hydrogen yield, activation energy, stability, and durability. The review shows that the commonly used metal alloys in the bimetallic nanoparticle–GO-based catalysts for HERs include Pt-based alloys (e.g., PtNi, PtCo, PtCu, PtAu, PtSn), Pd-based alloys (e.g., PdAu, PdAg, PdPt) or other combinations, such as AuNi, AuRu, etc., while the most used electrolyte sources are H2SO4 and KOH. For the bimetallic nanoparticle MOF-based catalysts, Pt-based alloys (e.g., PtNi, PtCu), Pd-based alloys (e.g., PdAg, PdCu, PdCr), and Ni-based alloys (e.g., NiMo, NiTi, NiAg, NiCo) took the lead, with KOH being the most frequently used electrolyte source. Lastly, the review addresses challenges and prospects, highlighting opportunities for further optimization and technological integration of the catalysts as promising alternative photo/electrocatalysts for future hydrogen production and storage.

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Estimation of efficiency of using hydrogen and aluminum as environmentally-friendly energy carriers

Cited by 18 publications

References 7 publications

Phase Stability, Phase Mixing, and Phase Separation in Fluorinated Alkaline Earth Hydrides

Phase Stability, Phase Mixing, and Phase Separation in Fluorinated Alkaline Earth Hydrides

Gasification characteristics of hydrochar and pyrochar derived from sewage sludge

A Comprehensive Review of Bimetallic Nanoparticle–Graphene Oxide and Bimetallic Nanoparticle–Metal–Organic Framework Nanocomposites as Photo-, Electro-, and Photoelectrocatalysts for Hydrogen Evolution Reaction

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