Controlled Release from Core-Shell Nanoporous Silica Particles for Corrosion Inhibition of Aluminum Alloys

Figure 8

TEM images. (a) Hollow Ce/silica particle synthesized using precursor sol with molar ratio TEOS : EtOH : H₂O : HCl : CTAB : CeCl₃  =  1 : 7.7 : 24.8 : 0.0125 : 0.18 : 0.18. (b) Hollow Ce oxide particles.

(a)

(b)