TEOS and Na2SiO3 as silica sources: study of synthesis and characterization of hollow silica nanospheres as nano thermal insulation materials

2020 ◽  
Vol 10 (6) ◽  
pp. 1833-1844
Author(s):  
Yerong Yang ◽  
Fangxian Li ◽  
Min Xiao ◽  
Zhibo Zhang ◽  
Jiangxiong Wei ◽  
...  
Keyword(s):  
Thermal Insulation ◽  
Synthesis And Characterization ◽  
Silica Nanospheres ◽  
Hollow Silica ◽  
Insulation Materials ◽  
Hollow Silica Nanospheres

Preparation of low density organosilica monoliths containing hollow silica nanospheres as thermal insulation materials

2019 ◽  
Vol 250 ◽  
pp. 151-154 ◽  
Author(s):  
Mathieu Grandcolas ◽  
Euphrasie Jasinski ◽  
Tao Gao ◽  
Bjørn Petter Jelle
Keyword(s):  
Thermal Insulation ◽  
Low Density ◽  
Silica Nanospheres ◽  
Hollow Silica ◽  
Insulation Materials ◽  
Hollow Silica Nanospheres

HOLLOW SILICA NANOSPHERES AS A POSSIBLE PATHWAY TOWARDS THERMAL SUPER INSULATION MATERIALS

2021 ◽  
Author(s):  
Bjørn Petter Jelle ◽  
Sohrab Alex Mofid ◽  
Tao Gao ◽  
Mathieu Grandcolas
Keyword(s):  
Silica Nanospheres ◽  
Hollow Silica ◽  
Insulation Materials ◽  
Hollow Silica Nanospheres

scholarly journals Synthesis of Hollow Silica Nanospheres by Sacrificial Polystyrene Templates for Thermal Insulation Applications

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Linn Ingunn C. Sandberg ◽  
Tao Gao ◽  
Bjørn Petter Jelle ◽  
Arild Gustavsen
Keyword(s):  
Thermal Insulation ◽  
Phonon Scattering ◽  
Simple Procedure ◽  
Weight Ratio ◽  
Silica Coating ◽  
Silica Nanospheres ◽  
Hollow Silica ◽  
Monodisperse Polystyrene ◽  
Hollow Silica Nanospheres ◽  
Controllable Size

Monodisperse polystyrene (PS) spheres with controllable size have been synthesized by a straight forward and simple procedure. The as-synthesized PS spheres have a typical diameter ranging from~180 nm to~900 nm, where a reduced sphere size is obtained by increasing the polyvinylpyrrolidone (PVP)/styrene weight ratio. The PS spheres function as sacrificial templates for the fabrication of hollow silica nanospheres (HSNSs) for thermal insulation applications. By modifying the silica coating process, HSNSs with different surface roughness are obtained. All resulting HSNSs show typically a thermal conductivity of about 20 mW/(mK), indicating that the surface phonon scattering is probably not significant in these HSNS samples.

scholarly journals Utilization of size-tunable hollow silica nanospheres for building thermal insulation applications

2020 ◽  
Vol 31 ◽  
pp. 101336 ◽  
Author(s):  
Sohrab Alex Mofid ◽  
Bjørn Petter Jelle ◽  
Xinpeng Zhao ◽  
Tao Gao ◽  
Mathieu Grandcolas ◽  
...  
Keyword(s):  
Thermal Insulation ◽  
Silica Nanospheres ◽  
Hollow Silica ◽  
Hollow Silica Nanospheres

Preparation and characterization of poly(L-lactic acid)/hollow silica nanospheres nanocomposites

2016 ◽  
Vol 17 (12) ◽  
pp. 2020-2026 ◽  
Author(s):  
Yanlan Zheng ◽  
Kelu Yan ◽  
Yongliang Zhao ◽  
Xiaomin Zhu ◽  
Martin Möller ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Silica Nanospheres ◽  
Hollow Silica ◽  
Hollow Silica Nanospheres

Preparation and Characterization of Hollow Silica Nanospheres

2011 ◽  
Vol 393-395 ◽  
pp. 240-243 ◽  
Author(s):  
Li Li Feng ◽  
Wei Zhao ◽  
Jing Jing Tong ◽  
Guan Hua Yue
Keyword(s):  
Electron Microscopy ◽  
Nitrogen Adsorption ◽  
Silica Shell ◽  
Silica Spheres ◽  
Silica Nanospheres ◽  
Hollow Silica ◽  
Hollow Silica Spheres ◽  
Transmission Electron ◽  
Hollow Silica Nanospheres

Monodisperse hollow silica nanospheres were prepared using functionalized polystyrene (PS) as a template and characterized by transmission electron microscopy (TEM), nitrogen adsorption and thermo gravimetry (TG) techniques. The effect of ammonia amount on hollow silica spheres was explored. It is found that the ammonia amount is important to the fabrication of hollow silica nanospheres. The roughness and thickness of the silica shell increased with the increase of ammonia amount. When ammonia amount reached 20 ml, the product hadn’t been hollow structural. The TGA curves and the BET results of the samples supplied a proof for the formation mechanism of the hollow silica spheres.

NANO INSULATION MATERIALS AND THE UTILIZATION OF HOLLOW SILICA NANOSPHERES

2017 ◽  
Author(s):  
Bjørn Petter Jelle ◽  
Sohrab Alex Mofid ◽  
Tao Gao ◽  
Serina Ng
Keyword(s):  
Silica Nanospheres ◽  
Hollow Silica ◽  
Insulation Materials ◽  
Hollow Silica Nanospheres

Integration of life cycle assessment in the design of hollow silica nanospheres for thermal insulation applications

2014 ◽  
Vol 80 ◽  
pp. 115-124 ◽  
Author(s):  
Reidun Dahl Schlanbusch ◽  
Bjørn Petter Jelle ◽  
Linn Ingunn Christie Sandberg ◽  
Selamawit Mamo Fufa ◽  
Tao Gao
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Thermal Insulation ◽  
Silica Nanospheres ◽  
Hollow Silica ◽  
Hollow Silica Nanospheres
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