Table 1

Ratios of Mn2+:Mn3+:Mn4+, average oxidation states, conductivities, and band gaps for uncalcined and calcined hexagonal MOMS-1.

MOMS-1Ratio of Mn2+:Mn3+:Mn4+Average oxidation state (AOS)Conductivity (ohm·cm)−1Band gap (eV)
Uncalcined1:8.60:2.373.115.0  ×  10−8 3.18
Calcined 1:21.7:30.23.558.13  ×  10−6 2.46