Effects of hydrogen on the magnetic properties of TiZrNi quasicrystals

Shin, Hongsik; Lee, Sang hwa; Jo, Young-Soo; Kim, Jae-Yong

doi:10.3938/jkps.61.1541

Cited by 4 publications

(3 citation statements)

References 18 publications

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“…The locations and the heights of the primary XRD peaks closely correspond to the Bancel scheme for categorizing icosahedral peaks 38 and confirm the sample is a phase-pure QC. The XRD data are also consistent with that of bulk unhydrogenated Ti−Zr−Ni QC 39 and on comparison reveals an increase in the intensity of all peaks when exfoliated into 2D from its bulk form.…”

Section: Structural and Optical Characterization Of 2d-tisupporting

confidence: 78%

Plasmonically Active Atomically Thin Titanium-Based Quasicrystals for Dopamine Sensing

Mandal,

Santos,

Chakraborty

et al. 2024

ACS Appl. Nano Mater.

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Non-noble nanomaterial-based quasicrystals (QC) are attractive structures due to their potential surface plasmon resonance (SPR) properties and ability to be easily exfoliated into two-dimensional (2D) sheets. Interaction with and sensing of organic molecules are applications where such 2D materials are a viable option due to their large surface area to volume ratio, providing abundant active sites for molecular interactions. In this work, a titanium-based multicomponent alloy (Ti 45 Zr 38 Ni 17 ) was exfoliated into a 2D quasicrystal (2D-Ti QC) from its bulk form via liquidphase exfoliation. Structural and optical experimental techniques were used to characterize the 2D-Ti QC. Its plasmonic nature was verified and demonstrated via the absorbance spectrum, light localization images, and far-field diffraction patterns. Dopamine sensing was demonstrated using the absorbance spectra of optically active 2D-Ti QC. The linear range of detection was obtained as ∼13−91 nM (200−1400 ppb). Molecular dynamics (MD) simulations of Ti QC were conducted to investigate its structural stability. The interaction between 2D-Ti QC and dopamine was investigated by using DFT simulations. In this way, the potential of 2D-Ti QC to be used as an organic molecule sensor has been experimentally and theoretically demonstrated.

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Section: Structural and Optical Characterization Of 2d-tisupporting

confidence: 78%

Plasmonically Active Atomically Thin Titanium-Based Quasicrystals for Dopamine Sensing

Mandal,

Santos,

Chakraborty

et al. 2024

ACS Appl. Nano Mater.

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“…Recently, the quasicrystals showing both ferromagnetic and antiferromagnetic behavior have been studied [34][35][36][37][38]. The magnetism in the TiZrNi quasicrystals was highly demanded [39]. The ferromagnetic signal for the Ti 45 Zr 38 Ni 17 originated from nickel nano-cluster precipitations in the quasicrystalline alloy [40].…”

Section: Introductionmentioning

confidence: 99%

Physical Properties of Ti45Zr38Fe17 Alloy and Its Amorphous Hydride

Żywczak¹,

Gondek

Czub

et al. 2022

Energies

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The alloys based on Ti-Zr are considered an excellent candidate for hydrogen storage applications. In this communication, we report the results of Fe substitution for Ni in the well-known Ti45Zr38Ni17 compound. The parent and related compounds can be obtained as amorphous powders, transforming into the quasicrystalline phase (i-phase) after annealing. The amorphous Ti45Zr38Fe17 phase is transformed into the icosahedral quasicrystalline state, and it is a quasi-continuous process. The i-phase is well-developed close to 500 °C. At higher temperatures, the quasicrystal structure transforms into the other phase: the w-phase (an approximant to the crystalline phase) and another crystal phase with a small addition of the FeZr3 and the Fe2(ZrTi)3. The amorphous Ti45Zr38Fe17 phases can be hydrogenated while maintaining the amorphous nature, which constitutes another very fascinating research field for our group. The investigated alloy shows a good capacity for gaseous H2 at level 2.54 wt.% at elevated temperatures. The ferromagnetic signal of the amorphous TiZrFe comes from magnetic nanocrystallites in the amorphous matrix. After heating, the magnetic signal significantly decreases due to the lack of long-range magnetic ordering in the i-phase of the Ti45Zr38Fe17 alloy.

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“…The icosahedral TiZrNi(i-TiZrNi) quasicrystal, due to its unique structure and potential application in hydrogen storage, has motivated many scientists' interest [1][2][3][4]. Some results show that the i-TiZrNi quasicrystal could absorb a large amount of hydrogen-up to two hydrogen atoms per metal atom [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Structure of Bergman-typeW-TiZrNi approximants to quasicrystal, analyzed by lattice inversion method

Huang¹,

Lai²,

Liu³

et al. 2014

J. Phys.: Condens. Matter

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The combined interatomic pair potentials of TiZrNi, including Morse and Inversion Gaussian, are successfully built by the lattice inversion method. Some experimental controversies on atomic occupancies of sites 6-8 in W-TiZrNi are analyzed and settled with these inverted potentials. According to the characteristics of composition and site preference occupancy of W-TiZrNi, two stable structural models of W-TiZrNi are proposed and the possibilities are partly confirmed by experimental data. The stabilities of W-TiZrNi mostly result from the contribution of Zr atoms to the phonon densities of states in lower frequencies.

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Effects of hydrogen on the magnetic properties of TiZrNi quasicrystals

Cited by 4 publications

References 18 publications

Plasmonically Active Atomically Thin Titanium-Based Quasicrystals for Dopamine Sensing

Plasmonically Active Atomically Thin Titanium-Based Quasicrystals for Dopamine Sensing

Physical Properties of Ti45Zr38Fe17 Alloy and Its Amorphous Hydride

Structure of Bergman-typeW-TiZrNi approximants to quasicrystal, analyzed by lattice inversion method

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