Graphene based sulfonated polyvinyl alcohol hydrogel nanocomposite for flexible supercapacitors. Journal of Electrochemical Science and Engineering, [S. l.], v. 11, n. 3, p. 197–207, 2021. DOI: 10.5599/jese.1031. Disponível em: https://pub.iapchem.org/ojs/index.php/JESE/article/view/1031. Acesso em: 16 jun. 2026.