Continuous process for the microwave synthesis of manganese oxides

CHED 1193

Robert R. Mitchell III, mitchellrobe@ccsu.edu1, Steven L. Suib2, and Guy Crundwell, crundwellg@ccsu.edu1. (1) Department of Chemistry, Central Connecticut State University, New Britain, CT 06050, (2) Department of Chemistry, Department of Chemical Engineering, Institute of Material Sciences, University of Connecticut, 55 North Eagleville Rd. U3060, Storrs, CT 06269-3060
Two forms of manganese oxides have been synthesized through a flow microwave process. An analogue of ε -MnO2, ahktenskite, was synthesized using KMnO4 and sucrose with in-situ mixing. γ -MnOOH was synthesized using hydrogen peroxide and MnSO4 in base by flowing a premixed slurry through the microwave. The materials were characterized using XRD, with the ε - MnO2 having a slightly down-shifted 2 θ, indicating a larger unit cell. More characterization will occur in a later publication.