Rodrigues, Isaias Alves, Stéfane Oliveira de Lira, Tiago dos Santos Estrela, Cailon França de Castro, and Valdeilson Souza Braga. “Rice Husk Ash Modified With Vanadium Pentoxide”. Orbital: The Electronic Journal of Chemistry 9, no. 2 (May 31, 2017): 111–114. Accessed January 29, 2026. https://periodicos.ufms.br/index.php/orbital/article/view/16504.