Effects of Ce Zn co-substitution on structure, magnetic and microwave absorption properties of nickel ferrite nanoparticles

Zhu, Yun Ming; Luo, Juhua

doi:10.1016/j.jallcom.2016.08.333

Cited by 79 publications

(8 citation statements)

References 48 publications

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“…Previous research indicates that rare Earth incorporation can affect the lattice parameter as well as the unit cell in an irregular manner. Several research groups [37][38][39][40] reported the dilation or expansion of unit cells with larger lattice parameters by incorporating rare Earth ions into spinel ferrites. The apparent cause of this increase in lattice parameters was proposed unequivocally yet separately by all of them as the substitution of smaller Fe 3+ ions by larger R + ions.…”

Section: Structural Characterizationmentioning

confidence: 99%

Understanding the Charge Carrier Dynamics, Improved Dielectric Properties and Leakage Current Behaviour of NiFe_1.85Dy_0.15O₄ with Structural Correlation

Mondal,

Kumar,

Dutta

et al. 2023

ECS J. Solid State Sci. Technol.

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This research explores the charge carrier dynamics of NiFe1.85Dy0.15O4 with excess amounts of Dy ions replacing the metal ions and forming an additional orthorhombic phase of DyFeO3 confirmed by the X-ray diffraction pattern of the sample and validated by Scanning electron microscopy and UV-Visible studies. Dy incorporation, in conjunction with the additional phase, has been shown to alter the structure of the inverse spinel matrix by expanding the unit cell and inducing strain. Impedance spectroscopy was used to investigate the sample’s behaviour as a circuit element, and an equivalent circuit containing resistance, capacitance, and inductance was realized to represent the sample when exposed to an alternating field. The Cole-Cole model of non-Debye relaxation was used to calculate dielectric parameters such as dielectric strength, high-frequency permittivity, shape parameters, and dielectric relaxation times. The specimen’s leakage current conduction mechanism was also systematically investigated to determine the presence of different variants of bulk and interface-limited conduction processes. This multifaceted study not only reveals the intriguing charge dynamics of NiFe1.85Dy0.15O4, which are influenced by Dy-ion incorporation and the emergence of a new phase but also extends its implications to the realm of potential applications, spurring developments in areas like novel energy storage technologies and advanced electronics.

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Section: Structural Characterizationmentioning

confidence: 99%

Understanding the Charge Carrier Dynamics, Improved Dielectric Properties and Leakage Current Behaviour of NiFe_1.85Dy_0.15O₄ with Structural Correlation

Mondal,

Kumar,

Dutta

et al. 2023

ECS J. Solid State Sci. Technol.

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“…Measured dislocation density is due to the dislocation in unit volume. Dislocation density is determined in lines per unit area and can be calculated using the following formula (Yan & Luo, 2017).…”

Section: Dislocation Density (𝛅)mentioning

confidence: 99%

Sol-gel Synthesis of Mn-substituted Copper Ferrite Nano Particles as Anode for Lithium Ion Batteries

Ahmad,

Yaseen,

Ali

et al. 2023

J. Mat. Phy.

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Mn substituted copper ferrites (MnxCu1-xFe2O4, x = 0, 0.33, 0.67, 1.00) have been synthesized from metal nitrates and citric acid by sol-gel method (chemical process). This study aims to know the effects of Mn substitution on structural, magnetic, and electrochemical properties of copper ferrites. For characterizing the prepared ferrites, different techniques such as X-ray diffraction (XRD), scanning electron microscopy (SEM), and Fourier transform infrared (FTIR) spectroscopy were used. In addition, vibrating sample magnetometer (VSM) is used to investigate the magnetic properties such as saturation magnetization (Ms), residual magnetism (Mr) and coercive force (Hc). A single-phase spinal structure was confirmed by XRD and lattice parameter was increased from 8.36 Å to 8.52 Å with increasing Mn contents. Micrographs of SEM shows that nanoparticles are agglomerated and non-uniform in size. The FTIR analysis shows that theses absorption band about 1422 cm-1 to 1434 cm-1 was attributed octahedral B-site. For pure copper ferrite, band is shifted towards higher frequency by manganese content. The results from CV showed that the increasing in scan rate and specific capacitance decreases due to increase in the area loop which clearly means that the investigated samples are best for storage devices such as lithium ion batteries (LIBs).

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“…Spinel ferrites constitute metal oxide compounds of minute classes of transition metals that are originally obtained from magnetite (Fe 3 O 4 ). The spinel ferrites exhibit good magnetic and electrical characteristics, which has brought about its broad applications in high-density data storage, water remediation, drug delivery, sensors, spintronics, immunoassays using magnetic labeling, hyperthermia of cancer cells, optical limiting, magnetocaloric refrigeration and magnetic resonance imaging (Farid et al 2017;Dar and Varshney 2017;Amirabadizadeh et al 2017;Pour et al 2017;Alcalá et al 2017;Yan and Luo 2017;Sharma et al 2017;Winder 2016;Samoila et al 2017;Niu et al 2017;Anupama et al 2017;El Moussaoui et al 2016;Patil et al 2016;Ghafoor et al 2016;Ashour et al 2018;Amiri and Shokrollahi 2013;Ouaissa et al 2015;Houshiar et al 2014;Maksoud et al 2020a, b;Abdel Maksoud et al 2020a;Hassan et al 2019;Patil et al 2018;Žalnėravičius et al 2018;Thiesen and Jordan 2008;Koneracká et al 1999;Arruebo et al 2007;Basuki et al 2013;Gupta and Gupta 2005a, b;Jain et al 2008;Liu et al 2005;Abdel Maksoud et al 2020b). Besides these applications, raising attention in energy storage research via dissemination is due to the fast-growing demand for electronic devices that are manufactured to be smaller, lighter and relatively cheaper.…”

Section: Supercapacitor-based On Spinel Ferritesmentioning

confidence: 99%

Advanced materials and technologies for supercapacitors used in energy conversion and storage: a review

et al. 2020

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Supercapacitors are increasingly used for energy conversion and storage systems in sustainable nanotechnologies. Graphite is a conventional electrode utilized in Li-ion-based batteries, yet its specific capacitance of 372 mA h g −1 is not adequate for supercapacitor applications. Interest in supercapacitors is due to their high-energy capacity, storage for a shorter period and longer lifetime. This review compares the following materials used to fabricate supercapacitors: spinel ferrites, e.g., MFe 2 O 4 , MMoO 4 and MCo 2 O 4 where M denotes a transition metal ion; perovskite oxides; transition metals sulfides; carbon materials; and conducting polymers. The application window of perovskite can be controlled by cations in sublattice sites. Cations increase the specific capacitance because cations possess large orbital valence electrons which grow the oxygen vacancies. Electrodes made of transition metal sulfides, e.g., ZnCo 2 S 4 , display a high specific capacitance of 1269 F g −1 , which is four times higher than those of transition metals oxides, e.g., Zn-Co ferrite, of 296 F g −1. This is explained by the low charge-transfer resistance and the high ion diffusion rate of transition metals sulfides. Composites made of magnetic oxides or transition metal sulfides with conducting polymers or carbon materials have the highest capacitance activity and cyclic stability. This is attributed to oxygen and sulfur active sites which foster electrolyte penetration during cycling, and, in turn, create new active sites.

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Effects of Ce Zn co-substitution on structure, magnetic and microwave absorption properties of nickel ferrite nanoparticles

Cited by 79 publications

References 48 publications

Understanding the Charge Carrier Dynamics, Improved Dielectric Properties and Leakage Current Behaviour of NiFe_1.85Dy_0.15O₄ with Structural Correlation

Understanding the Charge Carrier Dynamics, Improved Dielectric Properties and Leakage Current Behaviour of NiFe_1.85Dy_0.15O₄ with Structural Correlation

Sol-gel Synthesis of Mn-substituted Copper Ferrite Nano Particles as Anode for Lithium Ion Batteries

Advanced materials and technologies for supercapacitors used in energy conversion and storage: a review

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Effects of Ce Zn co-substitution on structure, magnetic and microwave absorption properties of nickel ferrite nanoparticles

Cited by 79 publications

References 48 publications

Understanding the Charge Carrier Dynamics, Improved Dielectric Properties and Leakage Current Behaviour of NiFe1.85Dy0.15O4 with Structural Correlation

Understanding the Charge Carrier Dynamics, Improved Dielectric Properties and Leakage Current Behaviour of NiFe1.85Dy0.15O4 with Structural Correlation

Sol-gel Synthesis of Mn-substituted Copper Ferrite Nano Particles as Anode for Lithium Ion Batteries

Advanced materials and technologies for supercapacitors used in energy conversion and storage: a review

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Understanding the Charge Carrier Dynamics, Improved Dielectric Properties and Leakage Current Behaviour of NiFe_1.85Dy_0.15O₄ with Structural Correlation

Understanding the Charge Carrier Dynamics, Improved Dielectric Properties and Leakage Current Behaviour of NiFe_1.85Dy_0.15O₄ with Structural Correlation