Figure 1: Particle growth rates.
From: Evidence for a chemical clock in oscillatory formation of UiO-66

Time-resolved plot of particle growth rate, as monitored by Vp′ (nm3 min−1) for zirconium (blue) and hafnium (red) based UiO-66, at the conditions of ½ eq. HCl and 100 °C, and 1 eq. HCl and 80 °C.