Design and analysis of nickel ferrite resonator antenna for C band applications

2021 ◽  
Vol 63 (6) ◽  
pp. 1781-1785
Author(s):  
Isaac Barros Tavares Silva ◽  
Adaildo Gomes D'Assunção ◽  
João Bosco Lucena Oliveira ◽  
Samanta Mesquita Holanda ◽  
Carlos Henrique Nascimento Cordeiro
Keyword(s):  
Nickel Ferrite ◽  
Ferrite Resonator

Simulation and design of a tuneable ferrite resonator antenna based on nanostructured nickel ferrite material

2015 ◽  
Vol 9 (14) ◽  
pp. 1618-1622 ◽  
Author(s):  
V.P. Silva Neto ◽  
C.F.L. Vasconcelos ◽  
M.R.D. Bomio ◽  
M.R.M.L. Albuquerque ◽  
J.H. Araújo ◽  
...  
Keyword(s):  
Nickel Ferrite ◽  
Ferrite Material ◽  
Ferrite Resonator

Impedance Spectroscopy of Copper Substituted Nickel Ferrite Nan particles

2017 ◽  
Vol 49 (003) ◽  
pp. 591--596
Author(s):  
K. A. KALHORO ◽  
M. KHALID ◽  
A. D. CHANDIO ◽  
M. A. KALHORO ◽  
N. CHANNA
Keyword(s):  
Impedance Spectroscopy ◽  
Nickel Ferrite

Tổng hợp vật liệu cấu trúc spinel nickel ferrite NIxFE3-xO4 bằng phương pháp sol-gel và khảo sát hoạt tính quang xúc tác

2018 ◽  
Vol 54(7) ◽  
pp. 20
Author(s):  
Nguyễn Trương Xuân Vinh ◽  
Đoàn Văn Hồng Thiện ◽  
Huỳnh Kỳ Phương Hạ
Keyword(s):  
Nickel Ferrite ◽  
Sol Gel

scholarly journals Synthesis, characterization and heavy metal removal efficiency of nickel ferrite nanoparticles (NFN’s)

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Waheed Ali Khoso ◽  
Noor Haleem ◽  
Muhammad Anwar Baig ◽  
Yousuf Jamal
Keyword(s):  
Heavy Metals ◽  
Nickel Ferrite ◽  
Contact Time ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Ferrite Nanoparticles ◽  
Batch Adsorption ◽  
Aqueous Environment ◽  
Human Beings ◽  
Nickel Ferrite Nanoparticles

AbstractThe heavy metals, such as Cr(VI), Pb(II) and Cd(II), in aqueous solutions are toxic even at trace levels and have caused adverse health impacts on human beings. Hence the removal of these heavy metals from the aqueous environment is important to protect biodiversity, hydrosphere ecosystems, and human beings. In this study, magnetic Nickel-Ferrite Nanoparticles (NFNs) were synthesized by co-precipitation method and characterized using X-Ray Diffraction (XRD), Energy Dispersive Spectroscopy (EDS) and Field Emission Scanning Electronic Microscopy (FE-SEM) techniques in order to confirm the crystalline structure, composition and morphology of the NFN’s, these were then used as adsorbent for the removal of Cr(VI), Pb(II) and Cd(II) from wastewater. The adsorption parameters under study were pH, dose and contact time. The values for optimum removal through batch-adsorption were investigated at different parameters (pH 3–7, dose: 10, 20, 30, 40 and 50 mg and contact time: 30, 60, 90, and 120 min). Removal efficiencies of Cr(VI), Pb(II) and Cd(II) were obtained 89%, 79% and 87% respectively under optimal conditions. It was found that the kinetics followed the pseudo second order model for the removal of heavy metals using Nickel ferrite nanoparticles.

scholarly journals Synergistic influence of mesoporous spinel nickel ferrite on the electrocatalytic activity of nano-structured palladium

RSC Advances ◽  
2021 ◽  
Vol 11 (20) ◽  
pp. 11813-11820
Author(s):  
Fariba Kaedi ◽  
Zahra Yavari ◽  
Ahmad Reza Abbasian ◽  
Milad Asmaei ◽  
Kagan Kerman ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Surface Area ◽  
Electrocatalytic Activity ◽  
Nickel Ferrite ◽  
Critical Factors

Structure and surface area are critical factors for catalysts in fuel cells.

scholarly journals Novel Polyimide/Copper-Nickel Ferrite Composites with Tunable Magnetic and Dielectric Properties

Polymers ◽  
2021 ◽  
Vol 13 (10) ◽  
pp. 1646
Author(s):  
Corneliu Hamciuc ◽  
Mihai Asandulesa ◽  
Elena Hamciuc ◽  
Tiberiu Roman ◽  
Marius Andrei Olariu ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Nickel Ferrite ◽  
Scanning Calorimetry ◽  
X Ray ◽  
Broadband Dielectric Spectroscopy ◽  
Copper Nickel ◽  
Low Dielectric ◽  
Magnetic Remanence ◽  
Polyimide Matrix ◽  
Ferrite Composites

Heat-resistant magnetic polymer composites were prepared by incorporating cerium-doped copper-nickel ferrite particles, having the general formula Ni1-xCuxFe1.92Ce0.08O4 (x: 0.0, 0.3, 0.6, 1.0), into a polyimide matrix. The effects of particle type and concentration on the thermal, magnetic, and electrical properties of the resulting composites were investigated. The samples were characterized by FTIR, scanning electron microscopy, X-ray diffractometry, thermogravimetric analysis, differential scanning calorimetry, vibrating sample magnetometer, and broadband dielectric spectroscopy. The composites exhibited high thermal stability, having initial decomposition temperatures between 495 and 509 °C. Saturation magnetization (Ms), magnetic remanence (Mr), and coercivity (Hc) were found in range of 2.37–10.90 emu g−1, 0.45–2.84 emu g−1, and 32–244 Oe, respectively. The study of dielectric properties revealed dielectric constant values of 3.0–4.3 and low dielectric losses of 0.016–0.197 at room temperature and a frequency of 1 Hz.

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