Abstract
Porous nickel oxide (NiO) and zinc oxide (ZnO) submicro- and nanofibers were synthesized by impregnating electrospun polyacrylonitrile (PAN) fiber templates with corresponding metal nitrate aqueous solutions and subsequent calcination. The diameter of the NiO and ZnO fibers was closely related to that of the template fibers and larger diameters were obtained when using the template fibers with larger diameter. SEM results showed that the NiO and ZnO fibers have a large amount of pores with diameters ranging from 5 nm to 20 nm and 50 nm to 100 nm, respectively. Energy dispersive X-ray (EDX) spectra and X-ray diffraction (XRD) patterns testified that the obtained materials were NiO and ZnO with high purity.
Highlights
Porous materials with high specific surface area (SSA) are highly required for applications in catalysis, supercapacitors, electromechanical actuators, and bio- and environmental engineering [1,2,3,4]
We developed a novel approach to synthesize porous Nickel oxide (NiO) and zinc oxide (ZnO) submicro- and nanofibers by impregnating electrospun polyacrylonitrile (PAN) fiber templates with corresponding nitrates aqueous solution and subsequent calcination
It is observed that the NiO nanofibers are composed of many nanoparticles with diameter in the range of 20 to 35 nm, and the ZnO submicrofibers are composed of many nanocrystallites with a width of about 65 nm and length of about 200 nm
Summary
Porous materials with high specific surface area (SSA) are highly required for applications in catalysis, supercapacitors, electromechanical actuators, and bio- and environmental engineering [1,2,3,4]. We developed a novel approach to synthesize porous NiO and ZnO submicro- and nanofibers by impregnating electrospun polyacrylonitrile (PAN) fiber templates with corresponding nitrates aqueous solution and subsequent calcination. About 50 mg stabilized PAN fiber templates were impregnated with 10 mL Ni(NO3)2 or Zn(NO3)2 aqueous solution at desired concentrations.
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