????????? ???? ??????? metatungstate ?????? ?? ???? ????? AMT ?????? ?? ??? ??????? ???? ???????? ?? ?? ?? ?????? ???? metatungstate ????????? ????? ??? ????? ??????? ?????? ??????. ???? ???? ?????? ???????? ?? ???? ???? ???? ????? ????? ???? ??????? ????? ?????? ?? ????? ????? ??????? ????? ?????? ??? ???? ??????? ???? ?????? ???? ???? ?? ????? ????????. ????? ??? ?? ?????? ??????? ???? ??????? ???? ?? ??? ?????? ??? ??????? ??? ?? ??? ??? ?????? ??????? ??????????? ??? ..

??? ????????? metatungstate ???? ?????? ?????? ?? ????? ????? ?????? ??????. ????? ???? ???? ????? ???????? ???????? ?? 200-300 ???? ?????? ???? AMT ?? ???? ?????? ????????? ????? ?????? ?????????. ????? ????? ?????? ?? 300-350 ???? ????? ?????? ??????? ????? ???????? ????? ?????????. ????? ????? ??????? ???? ?????? ???? ??????? ??? 500 ~ 550 ???? ?????? ????? ????? ?? ??????? ?????? ????? ?? ???? ??? ?????. ?????? ????? ???? ??????? ??? 600 ???? ????? ??? ???? ??? ????? metatungstate ????????? ????? ?? ???? ????? ???????? (WO 3 )? ????? ???? ???? ??????? ????? ??? 700 ???? ?????? ??????? ???? 2 ????? ????? ?????? ??? mesoporous ???? ????? ???????? ???? ?????.