Sodium insertion/extraction investigations into zinc ferrite nanospheres as a high performance anode material

Abstract

Electrode materials with high fast charging and high capacity are urgently required for the realization of sodium-ion batteries (SIBs).

Arabic Gum-Grafted-Hydrolyzed Polyacrylonitrile@ZnFe2O4 as a Magnetic Adsorbent for Remediation of Levofloxacin Antibiotic from Aqueous Solutions

“…The lattice structure of zinc ferrite is cubic, which is consistent with standard card JCPDS No. 22-1012 46 and also in agreement with reported values of the XRD pattern of zinc ferrite MNPs in literature. 45 The amorphous form of AG was as described, with two broad typical peaks at 2θ ∼ 6–8° and 18–20°.…”

“…These observed images were similar to reported FESEM images of zinc ferrite in the literature . The zinc ferrite nanospheres had an average diameter of 98 nm . In FESEM images of AG- g -HPAN, swollen spherical topologies with uniform distribution throughout the smooth surface were observed .…”

“… 45 The zinc ferrite nanospheres had an average diameter of 98 nm. 46 In FESEM images of AG- g -HPAN, swollen spherical topologies with uniform distribution throughout the smooth surface were observed. 47 They were ascribed to cross-linking, alkaline hydrolysis, and homogeneous graft copolymerization of acrylonitrile onto the AG chain.…”

Reducing the resistance for the use of electrochemical impedance spectroscopy analysis in materials chemistry

“…47 In the Randles circuit, C dl is sometimes substituted with a constant-phase element (Q), abbreviated CPE, to compensate for non-ideal capacitor behaviour that occurs due to nonhomogeneity of the surface at the double-layer interface. 9,18,45,48,49 The CPE is impacted by surface roughness, chemical inhomogeneity, and a heterogeneous electrode-electrolyte interface caused by ion adsorption. 50 The magnitude of the circuit elements can provide unique information about the conductive material under investigation, such as estimate the effectiveness of electrode material enhancements, 21,22,51 indicate the presence and magnitude of the corrosion processes, 26,52,53 or evaluate the suitability of the experimental operating conditions and design.…”

Solid-state synthesis of β-NaAlO2 nanoflakes as an anode material for high-performance sodium-ion batteries

“…[5][6][7] However, these materials are reported to have low capacity, huge irreversible loss and power cycling. 8 Among these materials, the layered TMOs provide comparatively high theoretical capacity and enhanced electrochemical performance at high currents due to their 2D space structure and edge-sharing octahedral units that can accommodate and release sodium ions during the process of sodiation and de-sodiation, respectively.…”