Fabrication of PANI-coated ZnFe2O4 nanofibers with enhanced electrochemical performance for energy storage

A comparative study of spinel ZnFe2O4 ferrites obtained via a hydrothermal and a ceramic route: Structural and magnetic properties

“…2 gives the FTIR spectra of HZFO specimens. The characteristic absorption bands at around 450 cm -1 and 575 cm -1 can be ascribed to the bending or stretching vibrations of A-O 4 and B-O 6 in spinels, which is consistent with the results in previous reports [10,20], suggesting the formation of spinel structure.…”

“…Different cation distribution will result in different magnetic properties due to the different superexchange interaction of A-O-B and B-O-B [9]. Spinel ZnFe 2 O 4 (ZFO) ferrite is widely studied as a kind of potential catalytic or anodic material [10][11][12][13]. Theoretically, ZFO is a typical normal spinel ferrite with a cation distribution in lattice sites as the following:…”

Template-free construction of hollow ZnFe2O4 nanotubes coated with a nano-carbon layer as a competitive anode for Li-ion batteries

“…Evidently, the capacities at each current density are all larger than and/or comparable to those of other ZFO-C composites (the lower panel in Fig. 3c) 10,14,[19][20][21][22][23][24][25][26]28 and even ZFO/conducting polymer composites 5,29,30 and ZFO nanostructures. 31,32 It is worthy of note that the ZFO@C NTs possess a striking high-ratedischargeability (HRD), which is dened as the ratio of the discharge capacity at a certain current density to that at 200 mA g À1 .…”

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

“…However, the lower conductivity, low cycling stability and volume change during charge/discharge cycles of metals oxides and transition metal sulfides make them insufficient materials for performing supercapacitors. To defeat those disadvantages, the conducting polymers or conducting materials were added to the magnetic oxides or transition metal sulfides to amplify the electronic conductivity and to enhance the cycling stability (Yang et al 2018;Qiao et al 2018). Conducting polymer hydrogels have been extensively used in the field of energy storage for supercapacitors production owing to many promising and outstanding properties like powerful electrochemical activities, improved electrical conductivity, distinctive solid-liquid interface, high stretchability, unique elastic resilience and good power and energy densities (Li et al 2018;Xu et al 2020;Ma et al 2019b;Qin et al 2017;Wang et al 2018bWang et al , 2019c.…”

“…However, its lower conductivity, volume fluctuations during charge and discharge rhythm and low cycling stability cycles make it unsuitable for efficient supercapacitors. To defeat those disadvantages, the conducting polymers or conducting materials were added to the Zn ferrite to enhance the electronic conductivity and to improve the cycling stability (Yang et al 2018;Qiao et al 2018). Israr et al (2020) have synthesized a nanocomposite series of Zn ferrite/nanoplatelets of graphene.…”