The impact of oxygen partial pressure in modifying energy storage property of lanthanum doped multiferroic bismuth ferrite thin films deposited via pulsed laser deposition

Balmuchu, Shashi Priya; Radhika, Ethireddy; Pamu, D.

doi:10.1016/j.est.2023.108179

Cited by 8 publications

(6 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This indicates that the specific arrangement of cobalt ions within the crystal lattice has a significant impact on the magnetic properties of these materials, leading to a reduction in coercivity. According to magnetization experiments, the additional chromium ions replace the iron ions at both the tetrahedral and octahedral positions [35][36][37][38][39]. In the concentration range of x = 0.1 to 0.2, the substantial fall in coercivity and a comparable increase in the strain derivative confirm our theory about cobalt's migration to A-sites.…”

Section: Coercivitysupporting

confidence: 67%

Magnetic and Magnetostrictive Properties of Sol–Gel-Synthesized Chromium-Substituted Cobalt Ferrite

Beera,

Dhanalakshmi,

Devi

et al. 2023

Gels

View full text Add to dashboard Cite

Chromium (Cr)-doped cobalt ferrite nanoparticles were synthesized using a sol–gel autocombustion method, with the chemical formula CoCrxFe2xO4. The value of x ranged from 0.00 to 0.5 in 0.1 increments. X-ray diffraction analysis confirmed the development of highly crystalline cubic spinel structures for all samples, with an average crystallite size of approximately 40 to 45 nm determined using the Scherrer equation. Pellets were prepared using a traditional ceramic method. The magnetic and magnetostrictive properties of the samples were tested using strain gauge and VSM (vibrating sample magnetometer) techniques. The results of the magnetic and magnetostrictive tests showed that the chromium-substituted cobalt ferrites exhibited higher strain derivative magnitudes than pure cobalt ferrite. These findings indicated that the introduction of chromium into the cobalt ferrite structure led to changes in the material’s magnetic properties. These changes were attributed to anisotropic contributions, resulting from an increased presence of Co2+ ions at B-sites due to the chromium substitutions. In summary, this study concluded that introducing chromium into the cobalt ferrite structure caused alterations in the material’s magnetic properties, which were explained by changes in the cationic arrangement within the crystal lattice. This study successfully explained these alterations using magnetization and coercivity data and the probable cationic dispersion.

show abstract

Section: Coercivitysupporting

confidence: 67%

Magnetic and Magnetostrictive Properties of Sol–Gel-Synthesized Chromium-Substituted Cobalt Ferrite

Beera,

Dhanalakshmi,

Devi

et al. 2023

Gels

View full text Add to dashboard Cite

show abstract

“…41-1487) were observed at around 25 • and 43 • , confirming the amorphous nature of the synthesized carbon materials [26,27]. Based on Scherrer's formula [28,29], the calculated crystalline sizes are 3.68, 3.41, 3.65, 3.8 and 3.62 nm for ZC-1000, ZPC-700, ZPC-800, ZPC-900 and ZPC-1000, respectively. Obviously, the relatively small crystalline size of ZPC-1000 indicates a higher degree of disorder, which is attributed to heteroatom doping [4].…”

Section: Morphological and Structural Characterizationsupporting

confidence: 54%

P-Doped Modified Porous Carbon Derived from ZIF-8 for Enhanced Capacitive Performance

Guo,

Li,

et al. 2023

Energies

View full text Add to dashboard Cite

Porous carbon materials derived from ZIF-8 have attracted extensive research attention on account of their large surface area, tunable mesoporosity and abundant nitrogen content. However, directly carbonized ZIF-8 usually suffers from a low electronic conductivity, poor wettability and relatively low mesoporosity, which severely restricts their capacitive performance. Herein, P-doped modified carbon materials derived from ZIF-8 (ZPCs) were synthesized by using nontoxic phytic acid as a phosphorus source, followed by carbonization at high temperature. Benefiting from its relatively high specific surface area of 911.7 m2 g−1 and higher ratio of mesopores, as well as N, O and P doping, ZPC-1000 delivers the largest specific capacity, up to 219.4 F g−1 at 1 A g−1, among the prepared samples and an outstanding cycle span, retaining 100% capacity after 2000 cycles at 5 A g−1. In this work, we highlight the strategy of constructing a synergistic effect between high mesoporosity and heteroatom doping, which can greatly boost the capacitive performance of carbon materials.

show abstract

“…By comparing the W rec values under a unit electric field, the quality of energy‐storage properties under a specific electric field is evaluated 20 . This result illustrates that under the low electric field ( E = 200 kV/cm), W rec and η of 9NT are better than most typical reported systems 16,21–46 …”

Section: Resultsmentioning

confidence: 87%

“…Comparison of energy‐storage performance between 9NT ceramics and other lead‐free dielectric ceramics under unit electric field 16,21–46 …”

Section: Resultsmentioning

confidence: 99%

Energy‐storage properties of (0.7Bi_0.65Na_0.35Fe_0.3Ti_0.7O₃–0.3Sr_0.85Bi_0.1TiO₃)–NaTaO₃ relaxor under low electric fields

Yang,

Ren,

et al. 2023

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

Currently, the energy‐storage properties of dielectric ceramic capacitors have aroused wide attention; however, most materials exhibiting excellent energy‐storage properties are based on high electric fields, which increase the cost of insulation technology. Herein, the energy‐storage and charge–discharge properties of (1 − x)(0.7Bi0.65Na0.35Fe0.3Ti0.7O3–0.3Sr0.85Bi0.1TiO3)–xNaTaO3 (x = 0.03–0.18, abbreviated as 100xNT) ceramics are investigated. 9NT achieves superior energy‐storage properties under a low electric field of 210 kV/cm, with an energy‐storage density (Wrec) of 3.44 J/cm3 and efficiency (η) of 86.6%. The energy‐storage properties exhibit excellent frequency stability in 3–100 Hz as well as temperature stability between 25 and 175°C. Furthermore, the charge–discharge performance features a high‐power density (PD = 67.04 MW/cm3), and an ultrafast discharge speed (t0.9 = 52 ns). This work paves a new way to explore energy‐storage competitive materials under low electric fields.

show abstract

The impact of oxygen partial pressure in modifying energy storage property of lanthanum doped multiferroic bismuth ferrite thin films deposited via pulsed laser deposition

Cited by 8 publications

References 31 publications

Magnetic and Magnetostrictive Properties of Sol–Gel-Synthesized Chromium-Substituted Cobalt Ferrite

Magnetic and Magnetostrictive Properties of Sol–Gel-Synthesized Chromium-Substituted Cobalt Ferrite

P-Doped Modified Porous Carbon Derived from ZIF-8 for Enhanced Capacitive Performance

Energy‐storage properties of (0.7Bi_0.65Na_0.35Fe_0.3Ti_0.7O₃–0.3Sr_0.85Bi_0.1TiO₃)–NaTaO₃ relaxor under low electric fields

Contact Info

Product

Resources

About

The impact of oxygen partial pressure in modifying energy storage property of lanthanum doped multiferroic bismuth ferrite thin films deposited via pulsed laser deposition

Cited by 8 publications

References 31 publications

Magnetic and Magnetostrictive Properties of Sol–Gel-Synthesized Chromium-Substituted Cobalt Ferrite

Magnetic and Magnetostrictive Properties of Sol–Gel-Synthesized Chromium-Substituted Cobalt Ferrite

P-Doped Modified Porous Carbon Derived from ZIF-8 for Enhanced Capacitive Performance

Energy‐storage properties of (0.7Bi0.65Na0.35Fe0.3Ti0.7O3–0.3Sr0.85Bi0.1TiO3)–NaTaO3 relaxor under low electric fields

Contact Info

Product

Resources

About

Energy‐storage properties of (0.7Bi_0.65Na_0.35Fe_0.3Ti_0.7O₃–0.3Sr_0.85Bi_0.1TiO₃)–NaTaO₃ relaxor under low electric fields