Tailoring the structural, morphological, optical, cytotoxicity, and antibacterial properties of low temperature calcined nickel ferrite nanoparticles

Manimunda, Praveena; Mohammed, E. M.

doi:10.1007/s10971-021-05660-5

Cited by 2 publications

(2 citation statements)

References 56 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Different types of defects are responsible for these states, and these defects are proportional to structural order−disorder. 40 Oxygen vacancies mainly cause emission bands in nickel ferrite systems. When Li, Mg, and Al ions are substituted into NiFe 2 O 4 , these ions could replace the Ni cation from either octahedral or tetrahedral sites.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Effect of Li⁺, Mg²⁺, and Al³⁺ Substitution on the Performance of Nickel Ferrite-Based Hydroelectric Cells

2022

View full text Add to dashboard Cite

Defect engineering in nickel ferrite has been performed to enhance the power output of the hydroelectric cell (HEC). Oxygen vacancies can be tuned in the ferrite using different valence element substitutions to enhance water dissociation by hydroelectric cells. In this work, Li+, Mg2+, and Al3+ substituted at the nickel site in nickel ferrite (NiFe2O4) are synthesized and studied for hydroelectric cell devices. Introducing these Li+, Mg2+, and Al3+ substituents (of a different atomic radius and valence charge state) in nickel ferrite leads to the generation of oxygen vacancy differently, which is discussed thoroughly in this work. In comparison to Mg and Al, lithium substitution lowers the overall cationic charge in nickel ferrite, leading to formation of a high number of oxygen vacancies for overall ionic charge compensation. Lithium-substituted nickel ferrite (NLFO) has a high number of defects (oxygen vacancies, etc.) compared to Mg-substituted (NMFO) and Al-substituted (NAFO) nickel ferrite, confirmed by X-ray photoelectron spectroscopy (XPS) and photoluminescence (PL) spectroscopy. The highest peak area of oxygen vacancies in the O 1s core-level spectra has been obtained for the case of NLFO among NLFO, NMFO, and NAFO. These vacancy sites provide a large number of adsorption sites for water molecule adsorption and dissociation. A high lattice strain (9.83 × 10–4) is induced in NLFO calculated by the Williamson–Hall plot. The porous nature of all samples has been confirmed from FESEM and BET analysis. The charge transfer processes in dry and wet HECs have been analyzed by fitting an equivalent RC circuit in the Nyquist spectra. The lithium-substituted nickel ferrite HEC with rich oxygen vacancies generates a high short-circuit current of ∼58.7 mA, which is ∼2 times higher than that of NMFO HEC and ∼3 times higher than that of NAFO HEC.

show abstract

Section: Resultsmentioning

confidence: 99%

“…As reported in the literature, various states available inside the material’s bandgap cause the photoluminescence emission. Different types of defects are responsible for these states, and these defects are proportional to structural order–disorder . Oxygen vacancies mainly cause emission bands in nickel ferrite systems.…”

Section: Resultsmentioning

confidence: 99%

Effect of Li⁺, Mg²⁺, and Al³⁺ Substitution on the Performance of Nickel Ferrite-Based Hydroelectric Cells

2022

View full text Add to dashboard Cite

show abstract

Preparation of graphene-based nanocomposites with spinel ferrite nanoparticles: Their cytotoxic levels in different human cell lines and molecular docking studies

Liman

Ilikci-Sagkan

İstifli

et al. 2023

Journal of Organometallic Chemistry

View full text Add to dashboard Cite

Tailoring the structural, morphological, optical, cytotoxicity, and antibacterial properties of low temperature calcined nickel ferrite nanoparticles

Cited by 2 publications

References 56 publications

Effect of Li⁺, Mg²⁺, and Al³⁺ Substitution on the Performance of Nickel Ferrite-Based Hydroelectric Cells

Effect of Li⁺, Mg²⁺, and Al³⁺ Substitution on the Performance of Nickel Ferrite-Based Hydroelectric Cells

Preparation of graphene-based nanocomposites with spinel ferrite nanoparticles: Their cytotoxic levels in different human cell lines and molecular docking studies

Contact Info

Product

Resources

About

Tailoring the structural, morphological, optical, cytotoxicity, and antibacterial properties of low temperature calcined nickel ferrite nanoparticles

Cited by 2 publications

References 56 publications

Effect of Li+, Mg2+, and Al3+ Substitution on the Performance of Nickel Ferrite-Based Hydroelectric Cells

Effect of Li+, Mg2+, and Al3+ Substitution on the Performance of Nickel Ferrite-Based Hydroelectric Cells

Preparation of graphene-based nanocomposites with spinel ferrite nanoparticles: Their cytotoxic levels in different human cell lines and molecular docking studies

Contact Info

Product

Resources

About

Effect of Li⁺, Mg²⁺, and Al³⁺ Substitution on the Performance of Nickel Ferrite-Based Hydroelectric Cells

Effect of Li⁺, Mg²⁺, and Al³⁺ Substitution on the Performance of Nickel Ferrite-Based Hydroelectric Cells