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α-MnO2和β-MnO2纳米棒的制备和催化性能研究
Synthesis and Catalytic Activity of α-MnO2 and β-MnO2 Nanorods
【摘要】 <正>锰通常以3种价态存在(Mn2+,Mn3+和Mn4+),相应的氧化物为MnO、MnO2、Mn2O3和Mn3O4,其中二氧化锰是重要的电极活性材料和氧化还原反应的催化剂。现已知二氧化锰有5种晶型结构,不同
【Abstract】 α-MnO2 and β-MnO2 nanorods were prepared directly by facile hydrothermal process at 150 ℃ and 220 ℃, respectively. The as-prepared α-MnO2 and β-MnO2 nanorods were shown to be phase-pure single crystallites as evidenced by XRD, TEM and SEM results. Further experiments show that the as-prepared α-MnO2 and β-MnO2 nanorods have catalytic effect on the oxidation and decomposition of the methylene blue（MB） dye with H2O2. The catalytic activity of β-MnO2 is much higher than that of α-MnO2.
【基金】 福建省自然科学基金(No.2006J0153,E0610006)资助项目。
- 【文献出处】 无机化学学报 ,Chinese Journal of Inorganic Chemistry , 编辑部邮箱 ,2007年05期
- 【分类号】O643.3
- 【被引频次】41
- 【下载频次】1439