Anionic La<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si24.svg"><mml:msubsup><mml:mrow><mml:mi mathvariant="bold">H</mml:mi></mml:mrow><mml:mrow><mml:mn>8</mml:mn></mml:mrow><mml:mrow><mml:mo>−</mml:mo></mml:mrow></mml:msubsup></mml:math>: A nanocluster-based hydrogen storage material

Huang, Shou Jun; Wang, Hai Yan; Li, Simin; Zhang, Guang Zhou; Su, Yuan

doi:10.1016/j.ijhydene.2021.10.015

Cited by 8 publications

(3 citation statements)

References 51 publications

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“…It is also paramount to note that hydrogen has the highest energy per mass of any fuel due to the fact the hydrogen atom is most attractive because its electron (for charge neutrality) is accompanied by only one proton, i.e., hydrogen has the highest ratio number of valence electrons to protons (and neutrons) of all of the elements in the periodic table. The energy gain per electron is very high, and the chemical energy per mass of hydrogen (39.4 kWh/kg) is 3 times larger than that of other chemical fuels. , However, the practical utilization of hydrogen energy in fuel-cell-powered cars is constrained by the lack of effective storage and secure conveyance options. For both the adsorption and desorption processes, the H 2 molecules should be stored reversibly with a substantial weight percentage capacity and moderate adsorption energy .…”

Section: Introductionmentioning

confidence: 99%

Molecular Modeling of Cu-, Ag-, and Au-Decorated Aluminum Nitride Nanotubes for Hydrogen Storage Application

Eno

Louis

Akpainyang

et al. 2023

ACS Appl. Energy Mater.

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The stabilities, electronic properties, and reactivities of hydrogen interactions with Cu-, Ag-, and Au-decorated aluminum nanotubes (AlNNT), H 2 -AlNNT, H 2 -Ag@AlNNT, H 2 -Au@AlNN T, and H 2 -Cu@AlNNT, for efficient hydrogen storage were investigated using density functional theory (DFT) computations at the ωB97XD/def2svp level of theory. The electron shared by H 2 -Ag@AlNNT, H 2 -Au@AlNNT, and H 2 -Cu@AlNNT, as well as the chemical bond created with the adsorbed hydrogen molecule, indicate chemisorption from the electron localization function (ELF) analysis, which is compatible with the adsorption energies obtained. H 2 -Cu@AlNNT exhibited molecular physisorption with an average hydrogen adsorption energy (E ads ) of −0.027 eV, whereas H 2 -AlNNT, H 2 -Ag@AlNNT, and H 2 -Au@AlNNT exhibited chemisorption behavior. The molecular adsorption energies for H 2 -Ag@AlNNT and H 2 -Au@AlNNT were, respectively, −0.136 and −0.081 eV. Thus, in comparison to the other H 2 -adsorbed systems under investigation, the highest obtained adsorption energies were observed for these two decorated nanotube systems, respectively. H 2 -Ag@AlNNT and H 2 -Au@AlNNT are, therefore, better when compared to the other studied materials in terms of storage and adsorption of hydrogen molecules. Additionally, the negative value of E ads shows that the stated hydrogen molecule's adsorption is thermodynamically efficient. Also, in comparison with the Department of Energy (DOE) standard, the calculated wt % values for the studied systems were found to be 6.0 and 5.8 wt % for the AlNNT and metal-decorated systems, respectively. This is quite lower than the recommended standard; however, adsorption of more hydrogen molecules and surface engineering could improve the obtained wt %. The desorption temperature was also found to be within the required range for storage materials, according to DOE. Ab initio molecular dynamics simulation also confirms surface stability. Correspondingly, the NCI analysis reveals that the nature of the connection is linked to van der Waals forces and that the hydrogen molecule interacts well with the adsorbent surfaces. These phenomenal results enshrined probably the noble metal-decorated AlN nanotube materials as efficient reservoir materials for hydrogen storage.

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Section: Introductionmentioning

confidence: 99%

Molecular Modeling of Cu-, Ag-, and Au-Decorated Aluminum Nitride Nanotubes for Hydrogen Storage Application

Eno

Louis

Akpainyang

et al. 2023

ACS Appl. Energy Mater.

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“…The general interference signal is always superimposed on the signal, changing its amplitude. So although FM waves will change in amplitude after they love to interfere, they can use a limiter at the receiving end to cut off the change in the amplitude of the signal [16][17][18][19][20] . Therefore, FM waves have excellent anti-interference performance, and FM broadcasts are received by a radio, there is almost no noise.…”

Section: Frequency Modulation Characteristics Of Hydrogen Energy Storagementioning

confidence: 99%

Design of hydrogen energy storage frequency modulation method based on primary frequency modulation of power grid

Yu,

Wang,

et al. 2024

Ninth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023)

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As an important branch of integrated energy system, hydrogen energy is also closely related to integrated energy in this plan. The plan calls for sticking to market applications, rationalizing the layout and pace, and pushing forward in an orderly manner the demonstration application of hydrogen energy in the transportation sector, and expanding its application in energy storage, distributed power generation, industry and other fields, promote the development of largescale, accelerate the exploration of effective ways to form the commercial development of hydrogen energy industry. The plan stresses the need for a rational distribution of diverse applications in the power generation sector and for hydrogen fuel cell distributed cogeneration facilities to suit local conditions, taking into account existing energy infrastructure and economic affordability, promote the demonstration of comprehensive utilization of hydrogen energy in communities, parks, mining areas, ports and other regions. The market application of hydrogen fuel cell in stand by power supply will be promoted by the infrastructure construction of communication base station, Data Center, Railway Communication Station, power grid substation and so on. In the renewable energy base,fuel cell-based power generation peak-shaving technology research and development and demonstration is explored . Combined with remote areas, islands and other electricity demand, fuel cell distributed power generation demonstration applications is developed .

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“…9–13 However, it is worth noting that metal clusters exhibit superior performance on the capacity, cycle life and rates of hydrogenation and dehydrogenation compared to conventional hydrogen storage materials. 14–18 The unique 4f orbitals and abundant electronic energy levels of rare earth elements enable their doping and modification for enhanced hydrogen storage performance, rendering it an increasingly significant focus. 19,20 The doping of a small quantity of CeO 2 to MgH 2 has been observed to significantly decrease the activation energy required for dehydrogenation of MgH 2 , with a minimum reduction of 50 kJ mol −1 H 2 .…”

Section: Introductionmentioning

confidence: 99%

Exploring the structure and hydrogen storage capacity of CeH_n^0/+ clusters

Zhao,

Huang,

et al. 2024

Phys. Chem. Chem. Phys.

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Anionic LaH8−: A nanocluster-based hydrogen storage material

Cited by 8 publications

References 51 publications

Molecular Modeling of Cu-, Ag-, and Au-Decorated Aluminum Nitride Nanotubes for Hydrogen Storage Application

Molecular Modeling of Cu-, Ag-, and Au-Decorated Aluminum Nitride Nanotubes for Hydrogen Storage Application

Design of hydrogen energy storage frequency modulation method based on primary frequency modulation of power grid

Exploring the structure and hydrogen storage capacity of CeH_n^0/+ clusters

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Anionic LaH8−: A nanocluster-based hydrogen storage material

Cited by 8 publications

References 51 publications

Molecular Modeling of Cu-, Ag-, and Au-Decorated Aluminum Nitride Nanotubes for Hydrogen Storage Application

Molecular Modeling of Cu-, Ag-, and Au-Decorated Aluminum Nitride Nanotubes for Hydrogen Storage Application

Design of hydrogen energy storage frequency modulation method based on primary frequency modulation of power grid

Exploring the structure and hydrogen storage capacity of CeHn0/+ clusters

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Product

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Exploring the structure and hydrogen storage capacity of CeH_n^0/+ clusters