Figure 2. Various MnO<sub>2</sub> Crystalline Structures (IMAGE)

Tokyo Institute of Technology

Figure 2. Various MnO<sub>2</sub> Crystalline Structures

Caption

Structures of (a) α-MnO2, (b) β-MnO2, (c) γ-MnO2, (d) δ-MnO2, and (e) λ-MnO2. Pink, green, and red spheres represent Mn, K, and O atoms, respectively. Of these, β-MnO2 is the most promising one as a catalyst for oxidation reactions because of the disposition and characteristics of its oxygen atoms.

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Keigo Kamata of Tokyo Institute of Technology

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