Hydrogen storage and electrochemical properties of the Ti0.32Cr0.43−−V0.25Fe Mn  (x= 0–0.055, y= 0–0.080) alloys and their composites with MmNi3.99Al0.29Mn0.3Co0.6 alloy

Lee, Han Gyo; Chourashiya, Muralidhar; Park, Choong Nyeon; Park, Chan‐Jin

doi:10.1016/j.jallcom.2013.03.004

Cited by 9 publications

(5 citation statements)

References 31 publications

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“…Therefore, the development of composite MH alloys, which contain two or more hydrogen storage materials/intermetallic compounds/elements, can potentially combine the advantages of constituted alloys. Recent composite alloy studies include BCC related alloys modified by AB 2 (Section 2.6), AB 5 [227], LaNi 5 [213,214], ZrV 2 [220], A 2 B 7 -type [217], LaNi 3 [212], or other BCC [218], A 2 B 7 -type alloy modified by AB 5 [228], MgNi alloy modified by Ti(NiCo) [229], Mg 2 Ni alloys modified by TiNi, TiFe [230], (MgMn) 2 Ni [231], (MgAl) 2 Ni [232], Co, or Ti [233], and are summarized in Table 8.…”

Section: Hydrogen Storage Alloys For Nimh Battery Negative Electrodesmentioning

confidence: 99%

The Current Status of Hydrogen Storage Alloy Development for Electrochemical Applications

Kim¹,

Nei²

2013

Materials

172

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In this review article, the fundamentals of electrochemical reactions involving metal hydrides are explained, followed by a report of recent progress in hydrogen storage alloys for electrochemical applications. The status of various alloy systems, including AB5, AB2, A2B7-type, Ti-Ni-based, Mg-Ni-based, BCC, and Zr-Ni-based metal hydride alloys, for their most important electrochemical application, the nickel metal hydride battery, is summarized. Other electrochemical applications, such as Ni-hydrogen, fuel cell, Li-ion battery, air-metal hydride, and hybrid battery systems, also have been mentioned.

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Section: Hydrogen Storage Alloys For Nimh Battery Negative Electrodesmentioning

confidence: 99%

The Current Status of Hydrogen Storage Alloy Development for Electrochemical Applications

Kim¹,

Nei²

2013

Materials

172

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“…This is due to the fact that the maximum hydrogen storage capacity of bcc alloys is proportional to the lattice constant of the alloy. 19 However, an increase in V content results in an enlargement of the lattice parameters of Ti−Cr−V alloys. 20 It also reduces the phase transition temperature and suppresses the formation of Laves phase during the casting process.…”

Section: Resultsmentioning

confidence: 99%

“…Additionally, regardless of the variation in X values between 0 and 10, their lattice parameters are almost identical. This is due to the fact that the maximum hydrogen storage capacity of bcc alloys is proportional to the lattice constant of the alloy . However, an increase in V content results in an enlargement of the lattice parameters of Ti–Cr–V alloys .…”

Section: Resultsmentioning

confidence: 99%

Influence of Ti-Rich Secondary Phase on the Hydrogen Storage Performance of V-Based Hydrogen Storage Alloys

Huang,

Yao,

Cui

et al. 2024

Energy Fuels

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“…Among all metal hydride (MH) alloy families, body-centered-cubic (BCC) solid solution alloy has the highest reversible hydrogen storage at ambient temperature. Although its gaseous phase hydrogen storage capacity is very high (up to 4.0 wt%, equivalent to 1072 mAh•g −1 [1]), few electrochemical studies have been performed on the pure BCC phase MH alloy due to its strong metal-hydrogen bonding and low surface reaction activity [2][3][4][5]. Inoue and his coworker reported a TiV3.4Ni0.6 alloy achieving 360 mAh•g −1 at room temperature with a discharge rate of 50 mA•g −1 [3].…”

Section: Introductionmentioning

confidence: 99%

Structure, Hydrogen Storage, and Electrochemical Properties of Body-Centered-Cubic Ti40V30Cr15Mn13X2 Alloys (X = B, Si, Mn, Ni, Zr, Nb, Mo, and La)

Kim

Ouchi²,

Huang³

et al. 2015

Batteries

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Structure, gaseous phase hydrogen storage, and electrochemical properties of a series of TiVCrMn-based body-centered-cubic (BCC) alloys with different partial substitutions for Mn with covalent elements (B and Si), transition metals (Ni, Zr, Nb, and Mo), and rare earth element (La) were investigated. Although the influences from substitutions on structure and gaseous phase storage properties were minor, influences on electrochemical discharge capacity were significant. The first cycle capacity ranged from 16 mAh•g −1 (Si-substituted) to 247 mAh•g −1 (Mo-substituted). Severe alloy passivation in 30% KOH electrolyte was observed, and an original capacity close to 500 mAh•g −1 could possibly be achieved by Mo-substituted alloy if a non-corrosive electrolyte was employed. Surface coating of Nafion to the Mo-substituted alloy was able to increase the first cycle capacity to 408 mAh•g −1 , but the degradation rate in mAh•g −1 •cycle −1 was still similar to that of standard testing. Electrochemical capacity was found to be closely related to BCC phase unit cell volume and width of the an extra small pressure plateau at around 0.3 MPa on the 30 °C pressure-concentration-temperature (PCT) desorption isotherm. Judging from its high electrochemical discharge capacity, Mo was the most beneficial substitution in BCC alloys for Ni/metal hydride (MH) battery application.

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Hydrogen storage and electrochemical properties of the Ti0.32Cr0.43−−V0.25Fe Mn (x= 0–0.055, y= 0–0.080) alloys and their composites with MmNi3.99Al0.29Mn0.3Co0.6 alloy

Cited by 9 publications

References 31 publications

The Current Status of Hydrogen Storage Alloy Development for Electrochemical Applications

The Current Status of Hydrogen Storage Alloy Development for Electrochemical Applications

Influence of Ti-Rich Secondary Phase on the Hydrogen Storage Performance of V-Based Hydrogen Storage Alloys

Structure, Hydrogen Storage, and Electrochemical Properties of Body-Centered-Cubic Ti40V30Cr15Mn13X2 Alloys (X = B, Si, Mn, Ni, Zr, Nb, Mo, and La)

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