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Table 1

Characteristics of the synthesised dust analogues.

Sample Sol-gel synthesis Composition Specific area φ pores
recipe (m2 g) (nm)

F1 TEOS + Mg(OEt)2 + H2O + HCl Mg2.3SiO4  ~5–10(1)
F2 TEOS + Mg(OEt)2 + H2O + C4H9NH2 Mg2.8SiO4  ~5–10(1)
F3 TEOS + Mg(NO3)2 + H2O + HNO3 Mg2.05SiO4  ~5–10(1)
E TEOS + Mg(NO3)2 + H2O + HNO3 Mg0.95SiO3 132 9(2)
D TEOS + Mg(NO3)2 + Ca(NO3)2 + H2O + HNO3 Ca0.98Mg0.9Si2O6 83 17(2)

Notes. 

(1)

Estimated from TEM images.

(2)

Derived from BET measurements.

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