Emerging Nanotechnologies for Manufacturing, 2nd Edition

388 CHAPTER 14 Metal oxide nanopowder

[Er{Ti(OR)

5

}

3

][Er{Sb(OR´)}

4

]

3

][Er{Sb(OR)

4

}

3

]

[Er(OR´)

4

P{Yb(OR´)

4

}

2

][Er{Yb(OR´)

4

}

3

]

[Er{Zr(OR)

5

}

3

]

Based on the physico-chemical properties, the following structure can be eluci-

dated for bimetallic oxide:

{MM´(OR)

4

}

3

RO

M

RO

O

OR

M

OR

OR

M

OR

OR

RO

RO

M

OR

OR

M = M´=3

+

M{M´(OR)

5

}

3

M = 3

+

, M´ = +4

OR

M´

RO

OR

RO

M

OR

RO

M´

OR

RO

OR

RO

M´

OR

OR

M{M´(OR)

5

}

3

M´ = 4

+

, M = 3

+

OR

OR

OR

R

14.7.2 PREPARATION OF BIMETALLIC OXIDE NANOPOWDER

VIA SOL–GEL PROCESS

Heterometallic alkoxide is used for the preparation of high purity multicomponents

oxide in good yield. Stoichiometric ratio of anhydrous metal chloride and bime-

tallic alkoxide was taken in anhydrous dichloromethane. ...