In-situ synthesized ZnFe 2 O 4 firmly anchored to the surface of MWCNTs as a long-life anode material with high lithium storage performance

Preparation of ZnFe2O4/α-Fe2O3 Nanocomposites From Sulfuric Acid Leaching Liquor of Jarosite Residue and Their Application in Lithium-Ion Batteries

“…Constructing appropriate nanostructures has been demonstrated to be an effective way to improve the electrochemical performance of electrode active materials (Zhang et al, 2013 ; Yu et al, 2018 ). Various nanostructured ZnFe 2 O 4 and Fe 2 O 3 materials have been fabricated using diverse methods, such as sol-gel method (Thankachan et al, 2015 ), hydrothermal synthesis (Lin and Pan, 2015 ; Li L. L. et al, 2017 ; Zheng Z. M. et al, 2018 ), solvothermal synthesis (Lu et al, 2013 ; Yang et al, 2017 ), high energy ball-milling, electrospinning method (Wang C. L. et al, 2017 ), and reactive pulsed laser deposition method (NuLi et al, 2004 ). Although improved electrochemical performances have been achieved, most of the reported methods are generally time-consuming and involving complicated steps, high cost due to high energy consumption and expensive raw materials, and difficult to scale up, which greatly restrict the development and practical application of nanostructured ZnFe 2 O 4 and Fe 2 O 3 materials in LIBs.…”

Three‐Dimensional ZnMn2O4 Nanoparticles/Carbon Cloth Anodes for High‐Performance Flexible Lithium‐Ion Batteries

“…One the one hand, transition metal oxides are known to suffer from sluggish kinetics due to their poor conductivity, the specific capacity would decrease at a high current density . On the other hand, the increased capacity of ZnMn 2 O 4 nanoparticles/CC is a usual phenomenon in transition metal oxides, which may be induced by the gradual activation process and the reversible reaction between the metal particle and the electrolyte . Figure f shows the Nyquist plots of ZnMn 2 O 4 nanoparticles/CC and pure phase ZnMn 2 O 4 electrodes before cycles.…”

“…In recent years, lithium‐ion batteries (LIBs) are widely used in diversified fields of human life because of their excellent cycle performance, high energy density, lack of memory effect and superior security and stability, good environmental compatibility . Commercial LIBs mainly use graphite as anode material, but it is hard to meet the demand for high‐performance LIBs due to their low theoretical specific capacity (372 mAh g −1 ) and not safe under low temperature and high rate cycles . Hence, it is desirable to exploit new types of anodes with superior performance.…”

Plasma production of nanomaterials for energy storage: continuous gas-phase synthesis of metal oxide CNT materials via a microwave plasma

“…(3)(4)(5)14) The presence of CNTs in these hybrid materials has been shown to reduce electrode pulverization and increase electron conductivity, resulting in improved capacity and fast charge-discharge rate performance. (3,5,7,14) Inversed geometries have also been studied, where anode materials have been produced from of CNTs coated in metal oxide nanoparticles (Figure 1h), with single component transition metals (6,(15)(16)(17)(18)(19)(20)(21) as well as bimetallic systems (22)(23)(24)(25).…”