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Glasses based on the ternary oxide system Cu 2 O-TeO 2 -MO 3 (M=Mo or W) doped with CuI were synthesized according to the formula zCuI.(1-z){xCu 2 O.(1-x)[yTeO 2 .(1-y)MO 3 ]} (M=Mo, z=0.3, 0.4 and 0.5 and M=W, z=0.3 and 0.4, respectively) in vacuum or argon atmosphere using the twin-roller quenching technique. The glasses exhibit phase separation and...
The vanadotungstogermanic heteropoly acid H 5 GeW 11 VO 40 .22H 2 O has been prepared for the first time by the stepwise acidification and the stepwise addition of solutions of the component elements. The suitable condition for the synthesis reaction is given. The product was characterized by means of ICP, potentiometric titration, IR, UV, 51 ...
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