Preparation of Co3O4/TiO2 secondary heterostructures (1) Preparation of TiO2 nanofibersA certain amount of PVP was weighed into 5 mL of ethanol and 1 mL of
Next, we investigate the electrochemical performance of porous Fe2O3 nanotubes as anode materials for Li-ion batteries. Cyclic voltammetry is a direct and effective method to
Morphology analysis of porous Fe2O3 nanotubes Figure 1 shows the SEM images of electrospinning nanofibers and porous Fe2O3 nanotubes. From Fig. 1, we can see
1.preparation method of porous Fe2O3 nanotubes Weigh a certain mass of polyvinylpyrrolidone and dissolve it in N, N-dimethylformamide. When stirring at room temperature for 12h,
1. Synthesis of V2O5 nanomaterials with different morphologiesFigure 1 shows the synthesis process of V2O5 nanomaterials with different morphologies. First, non-woven films were prepared by
Since Whittingham et al. first reported the reversible electrochemical performance of lithium ions intercalated into V2O5 structure in 1976, V2O5 has been used as a
Due to the relatively large pore volume and specific surface area of nanomaterials, they have many advantages such as small lithium ion deintercalation depth, small
The research on electrospinning technology first started with the development of organic polymer nanofibers. With the deepening of research, there have been more than one
Electrospinning technology is an important method for preparing one-dimensional micro-nano materials developed in recent years. This method has many unique advantages: such as simple equipment,
In 1991, Iijima, a Japanese professor and Nobel laureate, discovered nano-scale carbon multilayer tubes – carbon nanotubes in the product of evaporating graphite electrodes with