AFM studies and electrochemical characterization of boron-doped diamond surfaces modified with metal oxides by the sol-gel method - Suffredini, Hugo Barbosa; Salazar-Banda, Giancarlo Richard; Tanimoto, Sonia Tomie; Calegaro, Marcelo Luiz; Machado, Sergio Antonio Spinola; Avaca, Luís Alberto (Journal of the Brazilian Chemical Society, 2006)