Oxygen reduction catalyzed by E-Mn'OIND.2': influence of the crystalline structure on the reaction mechanism - Valim, Ricardo Bertholo; Santos, Mauro Coelho dos; Lanza, Marcos Roberto de Vasconcelos; Machado, Sergio Antonio Spinola; Lima, Fabio Henrique Barros de; Calegaro, Marcelo Luiz (Electrochimica Acta, 2012)