Excessively paramagnetic metal organic framework nanocomposites

Reddy, B. Venkata Shiva; Kumar, N. Suresh; Naidu, K. Chandra Babu; Srinivas, K.; Manjunatha, H.; Ratnamala, A.; Khan, Anish

doi:10.1016/b978-0-12-822099-3.00006-x

Cited by 2 publications

(5 citation statements)

References 21 publications

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“…Among all the perovskites, barium titanate (BTA) showed high relative permittivity of 2 × 10 3 , excellent ferroelectric nature, and photocatalytic activity. [ 1 ]…”

Section: Introductionmentioning

confidence: 99%

“…Among all the perovskites, barium titanate (BTA) showed high relative permittivity of 2 × 10 3 , excellent ferroelectric nature, and photocatalytic activity. [1] Moreover, the doped BTA ceramics provided the optical, dielectric, antenna, piezoelectric, and electromagnetic interference (EMI) shielding applications. [2] It was noticed from the literature that the parent compounds showed different properties as a function of various factors such as temperature, particle size, synthesis method, sintering/calcination process, etc.…”

Section: Introductionmentioning

confidence: 99%

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Effect of pH on Structure, Optical, and Dielectric Properties of BaTiO₃ Nanoparticles

Kumari

Devi

Kumar

2023

Cryst. Res. Technol.

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Barium titanate (BTA) nanoparticles are prepared by low‐temperature hydrothermal technique with varying pH from 9 to 12. The X‐ray diffraction (XRD) patterns confirm that the BTA nanoparticles with pH ranging from 9 to 11 show the existence of few small secondary phases (*) related to tetragonal structure along with the prominent cubic phases. But for sample with pH = 12, the XRD patterns confirm the presence of cubic phases without secondary phases. The morphology evidences the existence of almost spherical‐shaped grains (field‐emission scanning electron microscopy), and nanoparticles (high‐resolution transmission electron microscopy) in case of all samples. The energy dispersive spectra confirm the presence of Ba, Ti, and O elements among all samples. Besides, the photocatalytic activity is noticed for all samples. Using the Tauc's plots, optical band gap is determined. The dielectric constant (at pH = 12) is ≈15.10 while the dielectric loss is ≈1.231 suggesting the sample is suitable for charge stored capacitor applications. The dielectric modulus and impedance spectra are recorded in order to evaluate the polarization and conduction mechanism.

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“…Among all the perovskites, barium titanate (BTA) showed high relative permittivity of 2 × 10 3 , excellent ferroelectric nature, and photocatalytic activity. [ 1 ]…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of pH on Structure, Optical, and Dielectric Properties of BaTiO₃ Nanoparticles

Kumari

Devi

Kumar

2023

Cryst. Res. Technol.

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“…It was a familiar fact that the perovskite nanoceramic composites performed advanced structural, and dielectric properties [1]. Even the applications of several perovskite nanocomposites were extended to biomedical, magnetic, electromagnetic, microwave, ferroelectric, charge storage etc., [1]. Few of the above merits were seen in the case of LaTiO3 [2].…”

Section: Introductionmentioning

confidence: 99%

“…Further, the nanocomposites were synthesized including the AlLaTiO3, and studied for the similar properties. These materials were of ALTBT [1], ALTBFO [5,6], LCET [7], and AELTO [2] revealing the nanorod formation, negative dielectric behavior, and defect dipole formation, respectively. This indicated a fact that the more advanced properties were achieved on mixing the barium titanate, bismuth iron oxide, and europium oxide.…”

Section: Introductionmentioning

confidence: 99%

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Structural and Dielectric Properties of (1-x) (Al0.2La0.8TiO3) + (x) (BiZnFeO3) (x = 0.2 − 0.8) nanocomposites

Mallikarjuna

Kumar

Babu

et al. 2021

J Inorg Organomet Polym

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1-x) (Al0.2La0.8TiO3) + (x) (BiZnFeO3) (x = 0.2 -0.8) [ALTBZFO] nanocomposites were synthesized via hydrothermal method. The X-ray diffraction patterns indicated the phase transformation from tetragonal to cubic for x = 0.2 to 0.4 -0.8 samples, respectively.The surface morphology showed the existence of nanospheres like structures. At 1 MHz frequency also, the dielectric constant was increased from 230 to 710 for x = 0.2 -0.6 samples, respectively. But, interestingly, x = 0.6 nanocomposite exhibited the negative dielectric behavior having the dielectric constant (ε') ~ -58.5 and dielectric loss (ε") ~ -417 at 8 MHz. Likewise, x = 0.6 sample showed ac-electrical conductivity (σac) -0.159 S/cm at 6 MHz. Hence, these kinds of materials can provide high charge stored capacitor, and perfect absorber applications.

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Excessively paramagnetic metal organic framework nanocomposites

Cited by 2 publications

References 21 publications

Effect of pH on Structure, Optical, and Dielectric Properties of BaTiO₃ Nanoparticles

Effect of pH on Structure, Optical, and Dielectric Properties of BaTiO₃ Nanoparticles

Structural and Dielectric Properties of (1-x) (Al0.2La0.8TiO3) + (x) (BiZnFeO3) (x = 0.2 − 0.8) nanocomposites

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Excessively paramagnetic metal organic framework nanocomposites

Cited by 2 publications

References 21 publications

Effect of pH on Structure, Optical, and Dielectric Properties of BaTiO3 Nanoparticles

Effect of pH on Structure, Optical, and Dielectric Properties of BaTiO3 Nanoparticles

Structural and Dielectric Properties of (1-x) (Al0.2La0.8TiO3) + (x) (BiZnFeO3) (x = 0.2 − 0.8) nanocomposites

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Effect of pH on Structure, Optical, and Dielectric Properties of BaTiO₃ Nanoparticles

Effect of pH on Structure, Optical, and Dielectric Properties of BaTiO₃ Nanoparticles