Use of manganese oxides recovered from spent batteries in electrocatalysis of oxygen reduction reaction in alkaline medium

Quimica nova

Souza, Rodrigo F. B. De¹  Suffredini, Hugo B.¹  Teixeira Neto, Érico¹  Santos, Mauro C.¹  Rascio, Daniel C.¹  Calegaro, Marcelo L.² 

[1] Universidade Federal do ABC, Santo André, Brasil;Universidade de São Paulo, São Carlos, Brasil

关键词: manganese oxide;    oxygen reduction;    battery metal recovery.;   

DOI  :  10.1590/S0100-40422010000300043

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

The oxygen reductionreaction was studied in alkaline media using manganese oxides obtained fromspent batteries as electrocatalysts. Three processes were used to recover manganeseoxides from spent batteries. The particles obtained were in the range from 8to 11 nm. The electrochemical experiments indicated a good electrocatalyticactivity toward oxygen reduction using the different samples and showing approximatelya direct transference of 4 electrons during the process. Even though all theprocesses were efficient, the best result was observed for the prepared sampleusing reactants of low cost.

【 授权许可】

CC BY