Abstract Granular activated carbon (GAC) was coated by a uniform nanosized MnO2 layer with a thickness of 0.5 μm using a redox process in order to enhance its ability to decompose the H2O2 aerosols formed from decontamination applications. The surface characteristics of the resulting MnO2/GAC indicated that it possessed an amorphous structure with manganese of the oxidation state +4, as confirmed by SEM, EDS, XPS, SAED and BET analyses. The H2O2 aerosols decomposition activity of the new catalyst was found to be more than 20–30% higher than that of bare GAC.

中文翻译：

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使用涂有氧化锰的颗粒活性炭催化分解过氧化氢气溶胶，

摘要 颗粒活性炭 (GAC) 使用氧化还原工艺由均匀的纳米级 MnO2 涂层涂覆，厚度为 0.5 μm，以增强其分解去污应用中形成的 H2O2 气溶胶的能力。所得 MnO2/GAC 的表面特征表明它具有氧化态为 +4 的锰的无定形结构，如 SEM、EDS、XPS、SAED 和 BET 分析所证实的。发现新催化剂的 H2O2 气溶胶分解活性比裸 GAC 高 20-30% 以上。