Large sol-gel SiO.sub.2 monoliths containing transition metal an

Details Large sol-gel SiO.sub.2 monoliths containing transition metal an Large sol-gel SiO.sub.2 monoliths containing transition metal an

1985-02-25

1989-07-25

Lovering, Richard D.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

25231501, 2523156, 264 42, B01J 1300, C03C 304

Patent

active

048513733

ABSTRACT:
Sol-gel monoliths containing SiO.sub.2 and optionally B.sub.2 O.sub.3, Na.sub.2 O, Li.sub.2 O, TiO.sub.2, Al.sub.2 O.sub.3 and mixtures thereof, and a transition metal having an atomic number from 21-28 made by mixing water, a SiO.sub.2 precursor, a non-precipitating salt of a transition metal and mellitic acid to form a sol, gelling the sol, aging the gelled sol, drying the aged gelled sol and densifying by heating to from about 500.degree. C. to about 1350.degree. C.

REFERENCES:
patent: 2281810 (1942-05-01), Stone et al.
patent: 2834739 (1958-05-01), Becker et al.
Handbook of Chemistry and Physics, edited by C. D. Hodgman et al., 35th Edition, Chemical Rubber Publ. Co., Cleveland, Ohio (1953), pp. 1010-1011.

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