New insights into the solid-state hydrogen storage of nanostructured LiBH4-MgH2 system

Ding, Zhao; Li, Hao; Shaw, Leon L.

doi:10.1016/j.cej.2019.123856

Cited by 126 publications

(45 citation statements)

References 55 publications

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“…The last two decades have witnessed the increasing application of PSi in drug delivery, bio‐imaging, bio‐sensing, tissue engineering, and immunotherapy [11,12]. In addition, PSi has been widely used in many fields including optoelectronic devices [13,14], chemical sensors [15–18], energy conversion and storage [19–24], etc.…”

Section: Introductionmentioning

confidence: 99%

Porous Silicon Fabrication and Surface Cracking Behavior Research Based on Anodic Electrochemical Etching^▴

Yang

Chen

et al. 2020

Fuel Cells

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Porous silicon (PSi) was fabricated based on anodic electrochemical etching, and the relationship between preparation conditions, nanostructure and PSi surface crack behavior were systematically studied. The effects of silicon wafer resistivity (doping concentration), etching time, and etching current density on nanostructure of PSi were investigated. Results indicated that lower resistivity was beneficial to etching process and led to higher porosity with uniform nano‐channels, and surface crack was more intense during drying process. Thickness and porosity of the porous layer are both initially increased and then decreased with increasing etching time. Direction of capillary stress depended on pore geometry, which further affected crack shape (shrinkage or crimp) of surface layer of PSi. Cracking extent was controlled by porosity, that the surface cracking layer began to peel off when the porosity exceeded 70%. Finally, a geometry and porosity‐controlled model was proposed to describe the cracking behaviors of PSi surface layer.

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Section: Introductionmentioning

confidence: 99%

Porous Silicon Fabrication and Surface Cracking Behavior Research Based on Anodic Electrochemical Etching^▴

Yang

Chen

et al. 2020

Fuel Cells

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“…The particles with nano size possess abundant surface active sites for surface modification, and the greatest strength of Fe 3 O 4 @SiO 2 nanoparticles is their targeting ability. These magnetic particles can be attracted to a target zone under the action of an external magnetic field, which makes recovery feasible [ 15 , 16 , 17 , 18 , 19 , 20 , 21 ]. Moreover, the inert SiO 2 -shell can prevent the magnetic Fe 3 O 4 -core from oxidation, and the abundant surface hydroxyl of SiO 2 is highly conducive to surface grafting with organic ligands [ 22 , 23 , 24 , 25 ].…”

Section: Introductionmentioning

confidence: 99%

A Nanosensor for Naked-Eye Identification and Adsorption of Cadmium Ion Based on Core–Shell Magnetic Nanospheres

Deng

Xiao

et al. 2020

Materials

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Fe3O4@SiO2 nanospheres with a core–shell structure were synthesized and functionalized with bis(2-pyridylmethyl)amine (BPMA). The photoresponses of the as-obtained Fe3O4@SiO2-BPMA for Cr3+, Cd2+, Hg2+ and Pb2+ ions were evaluated through irradiation with a 352 nm ultraviolet lamp, and Fe3O4@SiO2-BPMA exhibited remarkable fluorescence enhancement toward the Cd2+ ion. The adsorption experiments revealed that Fe3O4@SiO2-BPMA had rapid and effective adsorption toward the Cd2+ ion. The adsorption reaction was mostly complete within 30 min, the adsorption efficiency reached 99.3%, and the saturated adsorption amount was 342.5 mg/g based on Langmuir linear fitting. Moreover, Fe3O4@SiO2-BPMA displayed superparamagnetic properties with the saturated magnetization of 20.1 emu/g, and its strong magnetic sensitivity made separation simple and feasible. Our efforts in this work provide a potential magnetic functionalized nanosensor for naked-eye identification and adsorption toward the Cd2+ ion.

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“…Apart from employing planetary-type high-energy ball mills, a unique design of the traditional Szigvari attritor ball mill 48 has been recently utilized for the fabrication of nanocomposite MgH 2 /LiBH 4 system [49][50][51][52][53] . This innovative method, termed as ball milling with aerosol spraying (BMAS), was proposed by Ding et al in 2015 49 .…”

mentioning

confidence: 99%

“…In this BMAS process, ultrafine graphite (C) powders were prepared first through 6-h of high-energy ball mill under an argon atmosphere 49 . Commercial MgH 2 powders were doped with 6 wt% of the pre-milled C powders, and then ball milled for 3 h, 6 h, and 12 h through the BMAS under continuous aerosol spraying of 2 M LiBH 4 / THF solution [49][50][51][52][53] . It was emphasized that the aerosol-liquid droplets solidified into nanoparticles when impinged onto the surfaces of MgH 2 powders [49][50][51] .…”

mentioning

confidence: 99%

“…At this expected temperature, the low-boiling point THF (66 °C) was vaporized instantaneously, leading to the formation of LiBH4 nanoparticles 52 . Further ball milling time led the LiBH 4 nanoparticles to coat the surface of MgH 2 powders first and be occluded into the powders with increasing the milling time 49,53 . Under these preparation conditions, in situ during ball milling to form MgB 2 and LiH.…”

mentioning

confidence: 99%

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From gangue to the fuel-cells application

El‐Eskandarany

Al–Salem

Ali

et al. 2020

Sci Rep

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Hydrogen, which is a new clean energy option for future energy systems possesses pioneering characteristics making it a desirable carbon-free energy carrier. Hydrogen storage plays a crucial role in initiating a hydrogen economy. Due to its low density, the storage of hydrogen in the gaseous and liquids states had several technical and economic challenges. Despite these traditional approaches, magnesium hydride (MgH2), which has high gravimetric and volumetric hydrogen density, offers an excellent potential option for utilizing hydrogen in automobiles and other electrical systems. In contrast to its attractive properties, MgH2 should be mechanically and chemically treated to reduce its high activation energy and enhance its modest hydrogen sorption/desorption kinetics. The present study aims to investigate the influence of doping mechanically-treated Mg metal with 5 wt% amorphous Zr2Cu abrasive nanopowders in improving its kinetics and cyclability behaviors. For the first time, solid-waste Mg, Zr, and Cu metals were utilized for preparing MgH2 and amorphous Zr2Cu alloy (catalytic agent), using hydrogen gas-reactive ball milling, and arc melting techniques, respectively. This new nanocomposite system revealed high-capacity hydrogen storage (6.6 wt%) with superior kinetics and extraordinary long cycle-life-time (1100 h) at 250 °C.

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New insights into the solid-state hydrogen storage of nanostructured LiBH4-MgH2 system

Cited by 126 publications

References 55 publications

Porous Silicon Fabrication and Surface Cracking Behavior Research Based on Anodic Electrochemical Etching^▴

Porous Silicon Fabrication and Surface Cracking Behavior Research Based on Anodic Electrochemical Etching^▴

A Nanosensor for Naked-Eye Identification and Adsorption of Cadmium Ion Based on Core–Shell Magnetic Nanospheres

From gangue to the fuel-cells application

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New insights into the solid-state hydrogen storage of nanostructured LiBH4-MgH2 system

Cited by 126 publications

References 55 publications

Porous Silicon Fabrication and Surface Cracking Behavior Research Based on Anodic Electrochemical Etching▴

Porous Silicon Fabrication and Surface Cracking Behavior Research Based on Anodic Electrochemical Etching▴

A Nanosensor for Naked-Eye Identification and Adsorption of Cadmium Ion Based on Core–Shell Magnetic Nanospheres

From gangue to the fuel-cells application

Contact Info

Product

Resources

About

Porous Silicon Fabrication and Surface Cracking Behavior Research Based on Anodic Electrochemical Etching^▴

Porous Silicon Fabrication and Surface Cracking Behavior Research Based on Anodic Electrochemical Etching^▴