Exposing the molecular sieving architecture of amorphous silica using positron annihilation spectroscopy

Engineering & Materials Science

• Positron annihilation spectroscopy 100%
• Silica 51%
• Positron annihilation 29%
• Spectroscopy 18%
• Molecules 16%
• Adsorption 16%
• Silica gel 15%
• Permeation 13%
• Pore size 6%
• Porosity 4%
• Membranes 4%
• Temperature 4%
• Gases 3%

Physics & Astronomy

• positron annihilation 53%
• silicon dioxide 38%
• porosity 32%
• spectroscopy 26%
• selectivity 15%
• silica gel 14%
• adsorption 12%
• life (durability) 11%
• molecules 8%
• siloxanes 7%
• assembling 6%
• cut-off 4%
• membranes 4%
• temperature 3%
• characterization 3%
• gases 2%
• performance 2%

Chemical Compounds

• Positron Annihilation Spectroscopy 78%
• Amorphous Material 34%
• Pore 32%
• Spectroscopy 16%
• Porosity 14%
• Adsorption 12%
• Gel 10%
• Molecule 8%
• Siloxane 8%
• Pore Size 7%
• Diffusion 5%
• Gas 4%