We report the advantages of hybrid nanomaterials prepared with electrogenerated ferrites (MFe2O4; M: Co, Mn) and multi-walled carbon nanotubes (MWCNTs) or thermally reduced graphene oxide (TRGO) on the electro-reduction of hydrogen peroxide. Glassy carbon electrodes (GCE) modified with these hybrid nanomaterials dispersed in Nafion/isopropanol demonstrated a clear synergism on the catalytic reduction of reduction of hydrogen peroxide at pH 13.00. The intimate interaction between MFe2O4 and carbon nanomaterials allowed a better electronic transfer and a facilitated regeneration of M at the carbon nanomaterials, reducing the charge transfer resistances for hydrogen peroxide reduction and increasing the sensitivities of the amperometric response.

中文翻译：

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基于碳纳米材料和 MFe2 O4 (M=Co, Mn) 的纳米杂化物对过氧化氢还原的电催化活性

我们报告了用电生铁氧体 (MFe2O4; M: Co, Mn) 和多壁碳纳米管 (MWCNT) 或热还原氧化石墨烯 (TRGO) 制备的混合纳米材料对过氧化氢电还原的优势。用这些分散在 Nafion/异丙醇中的混合纳米材料改性的玻璃碳电极 (GCE) 在 pH 13.00 时对过氧化氢还原的催化还原表现出明显的协同作用。MFe2O4 和碳纳米材料之间的密切相互作用允许更好的电子转移和促进碳纳米材料处 M 的再生，降低过氧化氢还原的电荷转移电阻并增加电流响应的灵敏度。