A direct electrochemical route from oxides to TiMn2 hydrogen storage alloy

Zhu, Jing; Dai, Lei; Yu, Yao; Cao, Jilin; Wang, Ling

doi:10.1016/j.cjche.2015.08.033

Cited by 8 publications

(5 citation statements)

References 23 publications

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“…Liquid H 2 can be stored through a compression and cooling process in tanks in cryogenic systems; the work required is predicted to be 15.2 kWh/kg, the volumetric density is 70.8 kg/m 3 and the gravity density is influenced by the tank size. Typically, a high-pressure tank (350-700 bar) is required to store H 2 as a gas [70].…”

Section: Hydrogen Storage and Transportmentioning

confidence: 99%

Use of Hydrogen as Fuel: A Trend of the 21st Century

Farias

Barreiros²,

Silva

et al. 2022

Energies

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The unbridled use of fossil fuels is a serious problem that has become increasingly evident over the years. As such fuels contribute considerably to environmental pollution, there is a need to find new, sustainable sources of energy with low emissions of greenhouse gases. Climate change poses a substantial challenge for the scientific community. Thus, the use of renewable energy through technologies that offer maximum efficiency with minimal pollution and carbon emissions has become a major goal. Technology related to the use of hydrogen as a fuel is one of the most promising solutions for future systems of clean energy. The aim of the present review was to provide an overview of elements related to the potential use of hydrogen as an alternative energy source, considering its specific chemical and physical characteristics as well as prospects for an increase in the participation of hydrogen fuel in the world energy matrix.

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Section: Hydrogen Storage and Transportmentioning

confidence: 99%

Use of Hydrogen as Fuel: A Trend of the 21st Century

Farias

Barreiros²,

Silva

et al. 2022

Energies

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“…These are shown in Figure 3. Conventional Methods of Storage Compression and liquefaction are two common strategies for storing hydrogen (9). The pressure of ultrahigh-pressure gas is extremely high (700 MPa).…”

Section: Hydrogen Storagementioning

confidence: 99%

Hydrogen Impermeable Materials for Efficient Hydrogen Storage

Meda¹,

Bhat²,

Agrawal

2022

ECS Trans.

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Hydrogen has the most potential as an energy resource alternative to fossil fuels, with numerous applications across sectors. It is clean and is present in a great amount in nature. However, due to the challenges in handling hydrogen and hydrogen embrittlement, its storage remains a concern, which is why high strength steels are rarely employed for such applications. To improve these hydrogen storage systems and address issues such as low energy efficiency, weight, long refueling periods, durability, hydrogen embrittlement, and costs, better hydrogen impermeable materials must be created. There are many material-based storage methods and coatings to reduce embrittlement and other problems faced by conventional storage methods like compression and liquefaction, but more investigation on high strength steels is necessary as they could be more efficient hydrogen storage materials.

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“…The most studied and promising AB 2 -type alloy materials are the Ti–Mn binary alloys [ 3 , 4 , 5 ]. Because of their light weight, Ti–Mn binary alloys possess a large hydrogen absorption capacity of more than 1.0 hydrogen to metal ratio (H/M) and moderate equilibrium plateau pressure (reported to be 0.7 MPa) under near ambient temperatures as compared to other AB 2 alloys [ 6 ]. Regardless of these superior properties, deterioration of hydrogen charging performances resulting from the surface chemical action of poisonous electrophilic gases is still a concern and therefore activation prior to hydrogen absorption is required [ 1 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

“…Regardless of these superior properties, deterioration of hydrogen charging performances resulting from the surface chemical action of poisonous electrophilic gases is still a concern and therefore activation prior to hydrogen absorption is required [ 1 , 7 ]. Some well-known attempts to improve hydrogenation behaviour of these binary alloys include element substitution, structural change, and multicomponent strategies [ 6 , 8 ]. An example of element substitution includes a study by Liu et al [ 1 ], where Ti and Zr comprised the A site, while Mn, Cr, V, Ni, Fe, and Cu metals occupied the B site to produce a (Ti 0.85 Zr 0.15 ) 1.05 Mn 1.2 Cr 0.6 V 0.1 M 0.1 alloy (where M=Ni, Fe, Cu).…”

Section: Introductionmentioning

confidence: 99%

Improved Hydrogenation Kinetics of TiMn1.52 Alloy Coated with Palladium through Electroless Deposition

et al. 2021

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The deterioration of hydrogen charging performances resulting from the surface chemical action of electrophilic gases such as CO2 is one of the prevailing drawbacks of TiMn1.52 materials. In this study, we report the effect of autocatalytic Pd deposition on the morphology, structure, and hydrogenation kinetics of TiMn1.52 alloy. Both the uncoated and Pd-coated materials were characterized using scanning electron microscopy/energy dispersive spectroscopy (SEM/EDS) and X-ray diffraction (XRD). XRD analyses indicated that TiMn1.52 alloy contains C14-type Laves phase without any second phase, while the SEM images, together with a particle size distribution histogram, showed a smooth non-porous surface with irregular-shaped particles ranging in size from 1 to 8 µm. The XRD pattern of Pd-coated alloy revealed that C14-type Laves phase was still maintained upon Pd deposition. This was further supported by calculated crystallite size of 29 nm for both materials. Furthermore, a Sieverts-type apparatus was used to study the kinetics of the alloys after pre-exposure to air and upon vacuum heating at 300 °C. The Pd-coated AB2 alloy exhibited good coating quality as confirmed by EDS with enhanced hydrogen absorption kinetics, even without activation. This is attributed to improved surface tolerance and a hydrogen spillover mechanism, facilitated by Pd nanoparticles. Vacuum heating at 300 °C resulted in removal of surface barriers and showed improved hydrogen absorption performances for both coated and uncoated alloys.

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A direct electrochemical route from oxides to TiMn2 hydrogen storage alloy

Cited by 8 publications

References 23 publications

Use of Hydrogen as Fuel: A Trend of the 21st Century

Use of Hydrogen as Fuel: A Trend of the 21st Century

Hydrogen Impermeable Materials for Efficient Hydrogen Storage

Improved Hydrogenation Kinetics of TiMn1.52 Alloy Coated with Palladium through Electroless Deposition

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