@article{oai:air.repo.nii.ac.jp:00000963,
 author = {MIZUNO, Noritaka},
 issue = {2},
 journal = {International Journal of the Society of Materials Engineering for Resources},
 month = {Sep},
 note = {The active sites for selective oxidation can be synthesized on polyoxometalates (oxide clusters). For example, Keggin-type di-iron-substitutedsilicotungstate, γ-SiW10{Fe(OH2)}2O38 6- ( I ), was synthesized by the reaction of the lacunary γ-SiW10O36 8- with Fe(NO3)3 in an acidic aqueous solution and isolated as the tetra-n-butylammonium salt (TBA-I). It was characterizedby various analyses and the structurewith the oxo-bridged di-iron site was clarified. TBA- I was stable and catalyzed selective oxidation of various alkanes and alkenes with hydrogen peroxide: Cyclohexane, adamantane, n-hexane, and n-pentane were catalytically oxidized. Even lower alkanes such as methane, ethane, propane, and n-butane were catalytically oxidized. It was remarkable that the efficiency of hydrogen peroxide utilizationto oxygenated products reached up to ca. 100% for the oxidation of cyclohexane and adamantane. Alkenes were mainly epoxidized with hydrogen peroxide. In addition, it was demonstrated that the TBA-1 showed high turnover numbers for the oxygenation of cyclohexane and epoxidation of alkenes with 1 atm oxygen.},
 pages = {135--137},
 title = {Control of Structure of Oxide Cluster and the Application to Catalytic Technology},
 volume = {10},
 year = {2002}
}