Nanoporous silica aerogel modified by triethylchlorosilane as a new sorbent for the needle-trap extraction

2018 ◽  
Vol 1 (2) ◽  
pp. 76-82 ◽  
Author(s):  
Ali Roostaie ◽  
Hasan Bargozin ◽  
Sirwan Mohammadiazar ◽  
Shokooh Ehteshami
Keyword(s):  
Silica Aerogel ◽  
Nanoporous Silica ◽  
Needle Trap Extraction

A Modified Nanoporous Silica Aerogel as a New Sorbent for Needle Trap Extraction of Chlorobenzenes from Water Samples

2018 ◽  
Vol 81 (4) ◽  
pp. 649-655 ◽  
Author(s):  
Ali Roostaie ◽  
Sirwan Mohammadiazar ◽  
Hasan Bargozin ◽  
Shokooh Ehteshami
Keyword(s):  
Water Samples ◽  
Silica Aerogel ◽  
Nanoporous Silica ◽  
Needle Trap Extraction

Characteristics of nanoporous silica aerogel under high temperature from 950 °C to 1200 °C

2017 ◽  
Vol 129 ◽  
pp. 82-90 ◽  
Author(s):  
Dongmei Huang ◽  
Chenning Guo ◽  
Minzhen Zhang ◽  
Long Shi
Keyword(s):  
High Temperature ◽  
Silica Aerogel ◽  
Nanoporous Silica

Effect of Sub-Continuum Energy Transport on Effective Thermal Conductivity in Nanoporous Silica (Aerogel)

2003 ◽  
Author(s):  
Brian R. Smith ◽  
Cristina H. Amon
Keyword(s):  
Thermal Conductivity ◽  
Silica Aerogel ◽  
Energy Transport ◽  
Phonon Scattering ◽  
Amorphous Structure ◽  
Phonon Transport ◽  
Silica Matrix ◽  
Thin Layers ◽  
Nanoporous Silica ◽  
Macro Scale

This paper analyzes the effect of Fourier vs. subcontinuum heat transport through thin layers of nanoporous silica (aerogel) in the framework of an infrared focal plane array (IRFPA) sensor system. Aerogel is introduced as a compatible material for emerging microsystems applications and the comparison between aerogel and conventional insulation systems is analyzed. Correlations between aerogel’s macro-scale thermal properties and its nano-scale structure are discussed to address the effect of the material’s amorphous structure and sub-continuum phonon transport phenomena on macro-scale thermal conductivity. Simulations using the Lattice Boltzmann Method (LBM) quantify the effect of phonon scattering on silica conductivity. Techniques for extending the analysis to a three-dimensional silica matrix are discussed in light of recent advances in the simulation of aerogel morphology.

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