| 摘要 |
Anions of the formula (I):[DA5M30-xO110-x(M'L)x]m-(I)in which D is Na+, Ca2+; A is P, As, Sb, Si, Ge, or combinations thereof, M is W5+, W6+, or mixtures thereof; M' is a metallic element from groups 2 to 15 of the periodic table; other than W; L is O2-, OH-, H2O; x is 0-10; and m is 10-20; selectively react with cations Zn+ to afford anions of the formula (II):[ZA5M30-xO110-x(M'L)x](m+1-n)-(II)wherein n is 3 or 4; Z=Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y, or Bi, when n=3, and Z=Ce, U, Np, Pu, or Am, when n =4. This reaction may be used for the selective encapsulation of lanthanide or actinide cations, and salts containing anions of formula (II) may be vitrified to form glasses or reduced to form tungsten "bronze" materials suitable for the long-term storage of radioactive lanthanides or actinides. |
