Preparation of Zirconium Oxide Powder Using Zirconium Carboxylate Precursors
Table 1
The elemental analysis results for the synthesized zirconium carboxylate complexes.
Sample
Elemental analysis (%)
Proposed formulaa
Expt. MW (g/mol)b
Theor. MW (g/mol)c
C
H
ZrAc
14.1
2.81
[Zr4O4(OH)3(OAc)5]⋅4H2O
211
212
Zr-1
17.2
4.10
[Zr4O2(OH)5(OAP)5Cl2]⋅8H2O
273
267
Zr-2
18.6
3.95
[Zr4O4(OH)3(OAP)5]⋅7H2O
252
243
Zr-3
28.3
4.68
[Zr4O4(OH)2(BUT)6]⋅2H2O
254
256
Zr-4
23.3
5.33
[Zr4O4(OH)2(ISBUT)6]⋅8H2O
289
292
Zr-5
35.0
7.08
[Zr4O4.5(PA)7]⋅5H2O
304
309
Zr-6
27.6
4.93
[Zr4O5(HPA)6]⋅8H2O
326
323
Zr-7
18.5
4.55
[Zr4O6(OH)2(EHA)2]⋅7H2O
259
227
Zr-8
36.5
5.27
[Zr4(OH)4(HIBA)12]⋅6H2O
443
445
Zr-9
23.9
6.45
[Zr4O(OH)4(HIBA)10]⋅28H2O
504
496
Zr-10
47.0
4.46
[Zr4O(OH)5(MA)9]⋅4H2O
532
506
OAc, OAP, BUT, ISBUT, PA, HPA, EHA, HIBA, and MA stand for acetate, propionate, butyrate, isobutyrate, pivalate, hydroxypivalate, 2-ethylhexanoate, hydroxyl isobutyrate, and mandelate, respectively. bThey were obtained from the TGA and thermal analysis, cfrom proposed formula.
