Mesporous 3C-SiC Hollow Fibers.

ABSTRACT: In the present work, for the first time, we reported the exploration of mesoporous 3C-SiC hollow fibers via single-spinneret electrospinning of polyureasilazane (PSN) and polyvinylpyrrolidone (PVP) solution followed by high-temperature pyrolysis treatment. The resultant products were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), high-resolution transmission electron microscopy (HRTEM) and N₂ adsorption. The as-prepared hollow fibers with totally mesoporous walls were uniformly sized in diameter and high purity in morphology. They were composed of single-crystalline 3C-SiC nanoparticles with a surface area of 21.75 m²/g and average pore diameter of ~34 nm. The PSN concentration played a determined role on the formation o

SUBMITTER: Liu Y 

PROVIDER: S-EPMC5432512 | biostudies-literature | 2017 May

REPOSITORIES: biostudies-literature