A novel chemical reduction method to fabricate tunable selenium nanosphere and nanobelt based on cellulose nanocrystals

作者：Wang, Duanchao; Yu, Houyong^*; Guan, Ying; Zhu, Maihao; Liu, Shanshan; Yao, Juming

来源：Materials Letters, 2018, 230: 44-47.

DOI：10.1016/j.matlet.2018.07.076

• Selenium nanosphere
• Selenium nanobelt
• Cellulose nanocrystal

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 (T-max) of 479.4 degrees C, the highest capacitance and the smallest internal resistance.

• 出版日期2018-11-1
• 单位浙江理工大学