Smart Mesoporous Silica Nanocapsules as Environmentally Friendly Anticorrosive Pigments

Figure 6

Polarization curves obtained on carbon steel after 30 minutes of exposure to Na₂SO₄ 10 mM solution at three different pH values (3, 6, and 11) without the addition of nanoparticles (a) and with the addition of 2 mg/mL of loaded/encapsulated mesoporous silica nanoparticles (b).

(a)

(b)