Synthesis and characterization of silica xerogel and aerogel from rice husk ash and pulverized beach sand via sol-gel route. Journal of the Nigerian Society of Physical Sciences, [S. l.], v. 5, n. 4, p. 11609, 2023. DOI: 10.46481/jnsps.2023.1609. Disponível em: https://journal.nsps.org.ng/index.php/jnsps/article/view/1609.. Acesso em: 19 may. 2024.