Structural, surface morphological and low temperature studies on gadolinium tri chloride (GdCl3)

Ariponnammal, S.; Shalini, S.; Devi, Silvianita

doi:10.1016/j.matpr.2019.05.406

Cited by 3 publications

(5 citation statements)

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“…Eu 3+ complexes are used as spectroscopic probes, such as luminescent probes for detecting singlet oxygen and nitric oxide [3] [4]. Gd 3+ complexes are contrast agents in magnetic resonance imaging (MRI) [5][6] [7] [8]. The photocatalytic activity of ZnS quantum dots can be enhanced by doping with Tb 3+ [9].…”

Section: Introductionmentioning

confidence: 99%

UNDERSTANDING THE ROLE OF DIFFUSION IN THE SEPARATION OF RARE EARTH ELEMENTS IN WATER-n-HEXANE SYSTEMS: A MOLECULAR DYNAMICS SIMULATION STUDY

Hardianto,

Janitra,

Fauzi

et al. 2023

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Liquid-liquid extraction is one of the methods for separating rare earth elements (REE) in the presence of an extractant. The separation of REE ions, complex with an extractant, involves interfacial migrations that are influenced by the diffusion of the respective ions. Therefore, we performed molecular dynamics simulations on REE ions (La3+, Sm3+, Eu3+, Gd3+, and Tb3+) in a water-n-hexane system to determine if each ion exhibited a distinct diffusion coefficient. By employing molecular dynamics simulations, we calculated diffusion coefficients for these ions based on the Einstein relation. The diffusion coefficients for La3+, Sm3+, Eu3+, Gd3+, and Tb3+ were found to be 4.21×10–6, and 3.96×10–6, 4.57×10–6, 4.17×10–6, and 5.19×10–6 cm2/s, respectively. However, statistical analysis via the Kruskal-Wallis test revealed no significant variance in the diffusion coefficients (p-value greater than 0.05), indicating that diffusion is not a rate-limiting factor in REE separation. The findings suggest that effective mixing during extraction can eliminate the role of diffusion as a differentiating factor in REE separation. Overall, this study offers critical insights into optimizing REE extraction processes

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Section: Introductionmentioning

confidence: 99%

UNDERSTANDING THE ROLE OF DIFFUSION IN THE SEPARATION OF RARE EARTH ELEMENTS IN WATER-n-HEXANE SYSTEMS: A MOLECULAR DYNAMICS SIMULATION STUDY

Hardianto,

Janitra,

Fauzi

et al. 2023

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“…[ 3 ] It is a trivalent f‐block metal ion with a highly paramagnetic nature. [ 4 ] Gadolinium has numerous applications. Gd 3+ possesses high magnetism and high symmetry.…”

Section: Introductionmentioning

confidence: 99%

“…Gd 3+ possesses high magnetism and high symmetry. [ 4 ] It has strong hydrogen–proton spin‐lattice relaxation effect. In nuclear magnetic imaging diagnosis, this property can be used by Gd complexes to get enhanced contrast.…”

Section: Introductionmentioning

confidence: 99%

“…[ 1 ] It has been applied in magnetic resonance imaging(MRI). [ 4,5 ] It is used in microwave applications. Gadolinium is also used in color televisions in the form of phosphorous.…”

Section: Introductionmentioning

confidence: 99%

“…Gadolinium has good resistivity, and so it is used in high‐temperature devices. [ 1–6 ] Defects in materials are useful for applications such as photo‐catalysis, electro‐catalysis, thermal‐catalysis, energy storage, and battery. Metal oxides are abundant in nature and stable chemically.…”

Section: Introductionmentioning

confidence: 99%

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Tailoring Room Temperature Ferromagnetism and Observation of Electrolyte of Widest Potential Window in Gd_0.75Se Nano Particles

Ariponnammal

Shalini

Anusha

2022

Cryst. Res. Technol.

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Uniformly distributed rectangular nanoparticles with some triangular particles of gadolinium selenide (Gd0.75Se) are prepared by the chemical precipitation method. It crystallizes in a cubic structure. It shows paramagnetic behavior along with interesting weak ferromagnetism at room temperature. In the present study, the cyclic voltammogram of electrolyte of Gd0.75Se shows pseudocapacitive behavior with a wider potential window of 3.75 V. The wider potential window electrolyte enhances applications in the super capacitor field for energy storage. The specific capacitance is 21 F g−1, and the energy density is 146 Wh kg−1. The observed high power density is 4.2 kW kg−1. The energy gap is 1.55 eV. A study of photoluminescence confirms the presence of native point defects.

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Exploring optical and electrochemical studies on thulium selenite (TmSeO₃)

Sundaram,

Nesam Gregory,

Sivakumar

2024

Zeitschrift Für Physikalische Chemie

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Thulium selenite (TmSeO3) has been synthesized by precipitation method. It shows interesting smooth surface with nearly non-symmetric texture similar to water droplets spreading on hydrophobic surface. TmSeO3 is found to be monoclinic structure with lattice parameters a = 5.919±0.01 Å, b = 12.422±0.01 Å, c = 8.717±0.01 Å, α = γ = 90°, β = 106.01° and V = 616.1 Å3. Fourier transform infrared spectroscopy confirms the presence of Tm–Se bonding. X-ray photo emission spectrum confirmed the presence of thulium, selenium and oxygen in the samples in oxide form. Magnetic study between 300 and 20 K, shows decrease of magnetic moment with temperature, then reaches saturation and aligns all thulium spins. This results cooperative interaction of thulium spins. M–H curve at 300 K confirms the paramagnetic nature of sample. Cyclic voltammogram of three electrode system, manifests electric double layer capacitance with a potential window of 0.55 V. Specific capacitance is 102 F/g. Chronopotentiometry analysis shows 75 F/g specific capacitance, 11 Wh kg−1 energy density, and 275 W kg−1 power density. Impedance analysis confirms electric double layer capacitor behavior. Hence, TmSeO3 electrode based symmetric supercapacitor device was successfully fabricated and tested by two electrode configuration in aqueous electrolyte of KOH. A specific capacitance of 64.60 F/g at 1 A/g within a potential window of 1.85 V was achieved. Impedance analysis also confirms electric double layer capacitor nature with low series resistance of 0.2596 Ω and charge transfer resistance of 1.6352 Ω. The improved cycling performance after 4000 cycles is 51.5 % specific capacitance retention. Thus, symmetric supercapacitor electrodes based TmSeO3 materials are expected to have good electrochemical properties and good stability for energy storage and conversion applications. Furthur, optical parameters 5.28 eV energy gap, 0.4924 eV Urbach energy value and 1.959 refractive index are determined.

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Structural, surface morphological and low temperature studies on gadolinium tri chloride (GdCl3)

Cited by 3 publications

References 6 publications

UNDERSTANDING THE ROLE OF DIFFUSION IN THE SEPARATION OF RARE EARTH ELEMENTS IN WATER-n-HEXANE SYSTEMS: A MOLECULAR DYNAMICS SIMULATION STUDY

UNDERSTANDING THE ROLE OF DIFFUSION IN THE SEPARATION OF RARE EARTH ELEMENTS IN WATER-n-HEXANE SYSTEMS: A MOLECULAR DYNAMICS SIMULATION STUDY

Tailoring Room Temperature Ferromagnetism and Observation of Electrolyte of Widest Potential Window in Gd_0.75Se Nano Particles

Exploring optical and electrochemical studies on thulium selenite (TmSeO₃)

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Structural, surface morphological and low temperature studies on gadolinium tri chloride (GdCl3)

Cited by 3 publications

References 6 publications

UNDERSTANDING THE ROLE OF DIFFUSION IN THE SEPARATION OF RARE EARTH ELEMENTS IN WATER-n-HEXANE SYSTEMS: A MOLECULAR DYNAMICS SIMULATION STUDY

UNDERSTANDING THE ROLE OF DIFFUSION IN THE SEPARATION OF RARE EARTH ELEMENTS IN WATER-n-HEXANE SYSTEMS: A MOLECULAR DYNAMICS SIMULATION STUDY

Tailoring Room Temperature Ferromagnetism and Observation of Electrolyte of Widest Potential Window in Gd0.75Se Nano Particles

Exploring optical and electrochemical studies on thulium selenite (TmSeO3)

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Tailoring Room Temperature Ferromagnetism and Observation of Electrolyte of Widest Potential Window in Gd_0.75Se Nano Particles

Exploring optical and electrochemical studies on thulium selenite (TmSeO₃)