Boosting H2 storage capability of Er+3 manganite by adding CuO and g-C3N4 in the form of a four-component nanocomposite

Mohassel, Reza; Soofivand, Faezeh; BahrAluloom, Yamamah Jawad; Imran, Merzah Kareem; Shabani-Nooshabadi, Mehdi; Salavati‐Niasari, Masoud

doi:10.1016/j.ijhydene.2022.12.167

Cited by 7 publications

(3 citation statements)

References 32 publications

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“…According to the previous studies, the electrical conductivity and electrochemical activity of cobalt‐containing materials have been enhanced through the introduction of various carbon materials [13,15,17] . For electrochemical hydrogen storage, graphene has been proven to be highly effective in improving capacity, HRD and stability of a series of Co−S, Co−Cu−Si, (LaCeY)(NiMnCoAl) 5 , MmNi 3.55 Co 0.75 Mn 0.4 Al 0.3 , LaY 2 Ni 9.5 Mn 0.5 Al 0.5 hydrogen storage alloys [18,20–24] . Herein, to further improve the electrocatalytic activity and conductivity of Co 9 S 8 , a series of porous graphene (PRGO) materials were fabricated via a facile CO 2 activation treatment of RGO at different processing times.…”

Section: Resultsmentioning

confidence: 99%

“…The high‐rate dischargeability and discharge capacity were promoted after RGO coating. The graphene oxide was added to in‐situ synthesized ErMnO 3 /ErMn 2 O 5 /ZnO material, the composite displayed excellent performance for hydrogen storage owing to the synergistic effect of the components [21] . The Co 3 O 4 nanocubes were in situ grown on N‐doped graphene, the prepared N‐doped graphene/Co 3 O 4 /MmNi 3.55 Co 0.75 Mn 0.4 Al 0.3 composites exhibited outstanding rate performance [22] .…”

Section: Introductionmentioning

confidence: 99%

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Preparation of CO₂‐activated Porous Graphene for Enhancing the Electrochemical Hydrogen Storage Properties of Co₉S₈ Material

Jia,

Li,

Wang

et al. 2023

ChemistrySelect

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In this work, Co9S8 hydrogen storage material was synthesized by mechanical alloying. To improve the electrocatalytic activity and conductivity of Co9S8, a series of porous reduced graphene oxide (PRGO) materials were fabricated via a facile CO2 activation treatment of RGO at different processing times. The composites of Co9S8 doping with different amount of PRGO were manufactured through ball milling. During the electrochemical hydrogen storage test, the porous Co9S8+PRGO exhibited higher discharge capacity than Co9S8+NRGO and conventional Co9S8. Moreover, the CO2 activation time and additive amount of PRGO had significant impact on the electrochemical properties of Co9S8. Ultimately, the electrode of 6 wt.% PRGO‐2 modified Co9S8 attained the optimum discharge capacity of 653 mAh/g. The special porous structure and high specific surface area of porous graphene could provide more electrochemical active sites and facilitate the hydrogen diffusion. After PRGO modification, the cycling stability, high‐rate dischargeability (HRD) and kinetic properties of Co9S8 were also enhanced. It can be concluded that porous graphene possesses better effect than conventional graphene in improving the performance of hydrogen storage alloy.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Preparation of CO₂‐activated Porous Graphene for Enhancing the Electrochemical Hydrogen Storage Properties of Co₉S₈ Material

Jia,

Li,

Wang

et al. 2023

ChemistrySelect

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“…( 8)): HSC = It/m, where I represent the applied current (mA), t is the charge-discharge time (h), and m is the amount of the coated nanocomposite (g). 47 Figure 13 (a-c) illustrates the electrochemical hydrogen storage of (a) NiZn2O4, (b) ZnW12O4, and (c) ZnW12O40@NiZn2O4 nanocomposite as active materials on working electrodes. After carrying out multiple absorption-desorption cycles at varying currents, a current of 2 mA was identified as the optimal value.…”

Section: Chronopotentiometry Measurementsmentioning

confidence: 99%

Design of a new nanocomposite based on Keggin-type [ZnW 12 O 40 ] 6– anionic cluster anchored on NiZn 2 O 4 ceramics as a promising material towards the electrocatalytic hydrogen storage

Rezvani,

Ardeshiri,

Gholami

et al. 2024

Preprint

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While hydrogen is considered as a highly promising alternative fuel for energy production and consumption systems due to its clean-burning properties, its relatively low volumetric energy density has hindered its sorption abilities under ambient conditions. As a result, extensive research efforts have been dedicated to developing electrode materials with high capacity in order to address the increasing complexities arising from the energy crisis. Herein, a new nanocomposite was synthesized via the sol-gel method by immobilizing potassium salt of Keggin-type polyoxometalate ([ZnW12O40]6–) within the surface of NiZn2O4 ceramics. The assembled nanocomposite (ZnW12O40/NiZn2O4) was characterized by FT-IR, UV-vis, XRD, SEM, EDX, BET, and TGA-DTG methods. Furthermore, the electrochemical characteristics of the materials were examined using cyclic voltammogram (CV) and charge-discharge chronopotentiometry (CHP) techniques. Multiple factors affecting the hydrogen storage capacity, including current density (j), surface area of the copper foam, and the consequences of repeated cycles of hydrogen adsorption-desorption were evaluated. The initial cycle led to an impressive hydrogen discharge capability of 340 mAh/g, which subsequently increased to 900 mAh/g after 20 runs with a current density of 2 mA in 6.0 M KOH medium. The surface area and the electrocatalytic characteristics of the nanoparticles contribute to facilitate the formation of electrons and provide good diffusion channels for the movement of electrolyte ions throughout the charge-discharge procedure.

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Ab Initio Study of the Effects of d-Block Metal (Mn, Re, Tc) Encapsulation on the Electronic, Phonon, Thermodynamic, and Gravimetric Hydrogen Capacity of BaXH4 Hydride Perovskites

Ededet,

Louis,

Chukwu

et al. 2023

J. Electron. Mater.

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Boosting H2 storage capability of Er+3 manganite by adding CuO and g-C3N4 in the form of a four-component nanocomposite

Cited by 7 publications

References 32 publications

Preparation of CO₂‐activated Porous Graphene for Enhancing the Electrochemical Hydrogen Storage Properties of Co₉S₈ Material

Preparation of CO₂‐activated Porous Graphene for Enhancing the Electrochemical Hydrogen Storage Properties of Co₉S₈ Material

Design of a new nanocomposite based on Keggin-type [ZnW 12 O 40 ] 6– anionic cluster anchored on NiZn 2 O 4 ceramics as a promising material towards the electrocatalytic hydrogen storage

Ab Initio Study of the Effects of d-Block Metal (Mn, Re, Tc) Encapsulation on the Electronic, Phonon, Thermodynamic, and Gravimetric Hydrogen Capacity of BaXH4 Hydride Perovskites

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Boosting H2 storage capability of Er+3 manganite by adding CuO and g-C3N4 in the form of a four-component nanocomposite

Cited by 7 publications

References 32 publications

Preparation of CO2‐activated Porous Graphene for Enhancing the Electrochemical Hydrogen Storage Properties of Co9S8 Material

Preparation of CO2‐activated Porous Graphene for Enhancing the Electrochemical Hydrogen Storage Properties of Co9S8 Material

Design of a new nanocomposite based on Keggin-type [ZnW 12 O 40 ] 6– anionic cluster anchored on NiZn 2 O 4 ceramics as a promising material towards the electrocatalytic hydrogen storage

Ab Initio Study of the Effects of d-Block Metal (Mn, Re, Tc) Encapsulation on the Electronic, Phonon, Thermodynamic, and Gravimetric Hydrogen Capacity of BaXH4 Hydride Perovskites

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Preparation of CO₂‐activated Porous Graphene for Enhancing the Electrochemical Hydrogen Storage Properties of Co₉S₈ Material

Preparation of CO₂‐activated Porous Graphene for Enhancing the Electrochemical Hydrogen Storage Properties of Co₉S₈ Material