Figure 5. SEM images and particle size distribution of ZnAl2O4 xerogel prepared from (S1) Al2(SO4)3∙18H2O, (S2) AlCl3∙6H2O, and (S3) Al(NO3)3∙9H2O and sintered at 700 °C.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.