Citation: Yan-Hui Sun, Pei-Pei Dong, Xu Lang, Jun-Min Nan. A novel rose flower-like SnO hierarchical structure synthesized by a hydrothermal method in an ethanol/water system[J]. Chinese Chemical Letters, ;2014, 25(6): 915-918. doi: 10.1016/j.cclet.2014.04.013 shu

A novel rose flower-like SnO hierarchical structure synthesized by a hydrothermal method in an ethanol/water system

Yan-Hui Sun ^a,b,, ,
Pei-Pei Dong ^a,b ,
Xu Lang ^a,b ,
Jun-Min Nan ^a,b

1.
a School of Chemistry and Environment, South China Normal University, Guangzhou 510006, China;
2.
b Guangzhou Key Laboratory of Materials for Energy Conversion and Storage, South China Normal University, Guangzhou 510006, China

Corresponding author: Yan-Hui Sun,
Received Date: 18 February 2014
Available Online: 3 April 2014
Fund Project: This study was financially supported by Guangdong Natural Science Foundation (No. S2011010005788). (No. S2011010005788)

Rose flower-like SnO hierarchical 3D architectures consisting of well-ordered microsheets were synthesized by a template-free and surfactant-free hydrothermal method based on the reaction between SnCl₂ and NaOH in ethanol/water. The ethanol amount is a crucial factor in controlling the size and morphology of the microsheets. Ethanol can accelerate the delamination of the SnO blocks to the microsheets, and the microsheets changed from a quasi square to an octodecahedral shape with the increase of the ethanol ratio. When the volume ratio of ethanol/water is 2:1, the microstructure of SnO presents a rose flower-like hierarchical architecture with a diameter of about 40 mm, which is regularly composed of numerous well-ordered thin microsheets with octodecahedral shape, and the microsheets were formed by countless nanoparticles. A possible growth mechanism of the architectures was proposed. Moreover, SnO₂ nanospheres were synthesized by a similar experiment only without NaOH, which showed that NaOH was crucial to the formation of SnO_x.
- SnO_x,
- Microstructure,
- Crystal growth
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