A novel chemical reduction method to fabricate tunable selenium nanosphere and nanobelt based on cellulose nanocrystals
writer：DuanchaoWang，HouyongYu，YingGuan，MaihaoZhu，ShanshanLiu，JumingYao
keywords：Selenium nanosphere，Selenium nanobelt，Cellulose nanocrystal
source：期刊
Issue time：2018年
A novel chemical reduction method was reported to prepare tunable spherical or belted morphologies of nano-selenium (Se) based on cellulose nanocrystal (CNC). The homogeneous Se nanospheres with size of about 36?nm can be found for Se-Sphere-12H by adding ascorbic acid (VC) as assisted reducing agent. The Se nanobelt with a length of about 800?nm can be observed for Se-Belt-12H through one-pot reaction of CNC with sodium selenite (Na2SeO3) under hydrothermal conditions. Moreover, Se-Belt-12H exhibited the higher crystallinity of 96.10% and maximum thermal degradation temperature (Tmax) of 479.4?°C, the highest capacitance and the smallest internal resistance.