Excellent kinetics and effective hydrogen storage capacity at low temperature of superlattice rare-earth hydrogen storage alloy by solid-phase treatment

Ding, Nan; Liu, Dayong; Liu, Wanqiang; Zhao, Jianxun; Jin, Lin; Wang, Limin; Liang, Fei

doi:10.1016/j.jpcs.2021.110402

Cited by 13 publications

(3 citation statements)

References 20 publications

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“…The reduction of hydride decomposition temperature is also observed for Mg‐based alloy modified with hydride. [ 22 ]…”

Section: Resultsmentioning

confidence: 99%

“…The reduction of hydride decomposition temperature is also observed for Mg-based alloy modified with hydride. [22] The peak temperature of the DSC signal as a function of the heating rate is often used to determine the apparent activation energy (E a ) of hydrogen desorption. The curves fitted based on the heating rate and peak temperature are shown in Figures S6-S10 (Supporting Information), each sample shows an obvious linear relationship.…”

Section: Thermodynamics Propertiesmentioning

confidence: 99%

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Optimization Strategy in Hydrogen Storage Performance of Ti─V─Cr─Mn Alloys via LiAlH₄

Ding,

Liu,

Yin

et al. 2023

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V‐based solid solution materials hold a significant position in the realm of hydrogen storage materials because of its high hydrogen storage capacity. However, the current dehydrogenation temperature of V‐based solid solution exceeds 350 °C, making it challenging to fulfill the appliance under moderate conditions. Here advancements in the hydrogen storage properties and related mechanisms of TiV1.1Cr0.3Mn0.6 + x LiAlH4 (x = 0, 5, 8, 10 wt.%) composites is presented. According to the first principle calculation analysis, the inclusion of Al and Li atoms will lower the binding energy of hydride, thus enhancing the hydrogen absorption reaction and significantly decreasing the activation difficulty. Furthermore, based on crystal orbital Hamilton population (COHP) analysis, the strength of the V─H and Ti─H bonds after doping LiAlH4 are reduced, leading to a decrease of the hydrogen release activation energy (Ea) for the V‐based solid solution material, thus the hydrogen release process is easier to carry out. Additionally, the structure of doped LiAlH4 exhibits an outstanding hydrogen release rate of 2.001 wt.% at 323 K and remarkable cycling stability.

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“…The reduction of hydride decomposition temperature is also observed for Mg‐based alloy modified with hydride. [ 22 ]…”

Section: Resultsmentioning

confidence: 99%

Section: Thermodynamics Propertiesmentioning

confidence: 99%

Optimization Strategy in Hydrogen Storage Performance of Ti─V─Cr─Mn Alloys via LiAlH₄

Ding,

Liu,

Yin

et al. 2023

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“…Among the 7 crystal forms of AlH 3 , -AlH 3 has the most stable structure. Studies have shown that doping AlH 3 materials in hydrogen storage alloys can have positive effects [4,5].…”

Section: Introductionmentioning

confidence: 99%

Properties of AB₅ type hydrogen storage alloy after α-AlH₃ alloying

Ding

Liang²,

Liu³

et al. 2023

J. Phys.: Conf. Ser.

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AB5 type hydrogen storage alloys have been widely used in Ni-MH batteries due to their high electrochemical capacity, excellent rate performance, and low pollution. However, the high activation difficulty limited their development in the solid-state hydrogen storage field. Mechanical alloying to synthesize composites is an effective way to reduce activation energy. In this paper, the structure and hydrogen storage properties of the LaNi5+nAlH3 (n = 0, 1, 3 wt.%) composites were investigated. The results show that with the incremental of AlH3 alloying content, the lattice constant a, b, and c and the volume (V) of the LaNi5 unit cell tend to increase, the hydrogen absorption platform pressure of the composite material gradually decreased, and the hydrogen release platform pressure gradually increased. It resulted in a reduction in the hysteresis factor (Hf) of the composite from 0.66 to 0.35. This will reduce energy waste during energy conversion. In addition, the activation property of the alloy was improved after AlH3 alloying. This will facilitate the application of AB5 type hydrogen storage alloys.

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Interface and body engineering via aluminum hydride enabling Ti-V-Cr-Mn alloy with enhanced hydrogen storage performance

Ding

Liu

Chen

et al. 2023

Chemical Engineering Journal

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Excellent kinetics and effective hydrogen storage capacity at low temperature of superlattice rare-earth hydrogen storage alloy by solid-phase treatment

Cited by 13 publications

References 20 publications

Optimization Strategy in Hydrogen Storage Performance of Ti─V─Cr─Mn Alloys via LiAlH₄

Optimization Strategy in Hydrogen Storage Performance of Ti─V─Cr─Mn Alloys via LiAlH₄

Properties of AB₅ type hydrogen storage alloy after α-AlH₃ alloying

Interface and body engineering via aluminum hydride enabling Ti-V-Cr-Mn alloy with enhanced hydrogen storage performance

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Excellent kinetics and effective hydrogen storage capacity at low temperature of superlattice rare-earth hydrogen storage alloy by solid-phase treatment

Cited by 13 publications

References 20 publications

Optimization Strategy in Hydrogen Storage Performance of Ti─V─Cr─Mn Alloys via LiAlH4

Optimization Strategy in Hydrogen Storage Performance of Ti─V─Cr─Mn Alloys via LiAlH4

Properties of AB5 type hydrogen storage alloy after α-AlH3 alloying

Interface and body engineering via aluminum hydride enabling Ti-V-Cr-Mn alloy with enhanced hydrogen storage performance

Contact Info

Product

Resources

About

Optimization Strategy in Hydrogen Storage Performance of Ti─V─Cr─Mn Alloys via LiAlH₄

Optimization Strategy in Hydrogen Storage Performance of Ti─V─Cr─Mn Alloys via LiAlH₄

Properties of AB₅ type hydrogen storage alloy after α-AlH₃ alloying