Table 2 Pore fractions and Rg values of synthetic aerogels SG-3, SG-7, SG-9 and alteration layers from 3I7, 5I7, 7I7, 9I7, and 11I7.

From: Comparative structural investigations of nuclear waste glass alteration layers and sol-gel synthesized aerogels

Sample

Pore fraction

Rg1 (Å)

Rg2 (Å)

SG-3

0.81 ± 0.08

8 ± 1

74 ± 2

SG-7

0.83 ± 0.08

16 ± 2

NA

SG-9

0.79 ± 0.08

15 ± 4

430 ± 40

3I7

0.21 ± 0.02

1900 ± 600

NA

5I7

0.23 ± 0.02

1180 ± 60

NA

7I7

0.31 ± 0.02

3400 ± 300

NA

9I7

0.50 ± 0.02

53 ± 3

NA

11I7

0.64 ± 0.02

37 ± 3

9900 ± 400

  1. Pore fractions were determined in Reiser et al. (synthetic aerogels) and Kaspar et al. (glass alteration layers).39,50
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