METAL OXIDE ALKOXIDE POLYMERS: PART III. THE HYDROLYSIS OF SECONDARY AND TERTIARY ALKOXIDES OF ZIRCONIUM

1962 ◽  
Vol 40 (1) ◽  
pp. 15-21 ◽  
Author(s):  
D. C. Bradley ◽  
D. G. Carter
Keyword(s):  
Metal Oxide ◽  
Structural Models ◽  
Zirconium Alkoxides ◽  
Hydrolysis Of

The hydrolysis of zirconium alkoxides with secondary or tertiary alkoxide groups Zr(OR)4, where R = Pri, Bus, Bul, and Amt, has been studied. The relatively low polymers formed by the metal oxide alkoxides have been interpreted on the basis of structural models involving octahedrally 6-co-ordinated zirconium.

METAL OXIDE ALKOXIDE POLYMERS: PART I. THE HYDROLYSIS OF SOME PRIMARY ALKOXIDES OF ZIRCONIUM

1961 ◽  
Vol 39 (7) ◽  
pp. 1434-1443 ◽  
Author(s):  
D. C. Bradley ◽  
D. G. Carter
Keyword(s):  
Metal Oxide ◽  
Zirconium Oxide ◽  
Structural Models ◽  
Degree Of Polymerization ◽  
Degree Of Hydrolysis ◽  
Zirconium Alkoxides ◽  
Hydrolysis Of

Ebulliometric studies have been made on the hydrolysis of some zirconium alkoxides, Zr(OR)4 where R = Et, Prn, Bui, and Bun. The variation of the degree of polymerization of the zirconium oxide alkoxides so produced was determined as a function of the degree of hydrolysis. The results are interpreted in terms of structural models based on octahedrally 6-co-ordinated zirconium.

METAL OXIDE ALKOXIDE POLYMERS: PART II. THE HYDROLYSIS OF TANTALUM PENTAETHOXIDE

1961 ◽  
Vol 39 (9) ◽  
pp. 1818-1826 ◽  
Author(s):  
D. C. Bradley ◽  
H. Holloway
Keyword(s):  
Metal Oxide ◽  
Tantalum Oxide ◽  
Structural Models ◽  
Degree Of Polymerization ◽  
Degree Of Hydrolysis ◽  
Oh Groups ◽  
Infrared Studies ◽  
Hydrolysis Of ◽  
Considerable Range ◽  
Characteristic Manner

The hydrolysis of tantalum pentaethoxide has been studied in boiling benzene and in boiling ethanol. Soluble tantalum oxide ethoxides were obtained over a considerable range of hydrolysis. Infrared studies suggest that Ta—OH groups are absent in these products. Ebulliometric studies have shown that the number-average degree of polymerization varies with the degree of hydrolysis in a characteristic manner and this has been quantitatively explained in terms of fundamental structural models based on octahedrally 6-co-ordinated tantalum.

METAL OXIDE ALKOXIDE POLYMERS: PART IV. THE HYDROLYSIS OF SOME TANTALUM ALKOXIDES

1962 ◽  
Vol 40 (1) ◽  
pp. 62-72 ◽  
Author(s):  
D. C. Bradley ◽  
H. Holloway
Keyword(s):  
Metal Oxide ◽  
Tantalum Oxide ◽  
Structural Models ◽  
Degree Of Hydrolysis ◽  
Important Data ◽  
Polymeric Nature ◽  
Hydrolysis Of

Ebulliometric studies on the hydrolysis of tantalum pentaalkoxides Ta(OR)5, where R = Me, Prn, Bun, and Bus, have furnished important data on the polymeric nature of tantalum oxide alkoxides. It is shown from the variation of number-average degrees of polymerization as a function of degree of hydrolysis that the polymers conform to certain structural models. The structural models involve 6-co-ordinated tantalum.

Hydrolysis of CF4 over alumina-based binary metal oxide catalysts

2003 ◽  
Vol 40 (2) ◽  
pp. 81-91 ◽  
Author(s):  
Z.M. El-Bahy ◽  
Ryuichiro Ohnishi ◽  
Masaru Ichikawa
Keyword(s):  
Metal Oxide ◽  
Oxide Catalysts ◽  
Metal Oxide Catalysts ◽  
Binary Metal ◽  
Binary Metal Oxide ◽  
Hydrolysis Of

scholarly journals Preparation of Metal Oxide Ultrafine Particles by Hydrolysis of Metal Alkoxide in Reverse Micelles.

1992 ◽  
Vol 18 (3) ◽  
pp. 296-302 ◽  
Author(s):  
Takayuki Hirai ◽  
Eiji Imamura ◽  
Takayoshi Matsumoto ◽  
Ryoichi Kuboi ◽  
Isao Komasawa
Keyword(s):  
Metal Oxide ◽  
Reverse Micelles ◽  
Ultrafine Particles ◽  
Metal Alkoxide ◽  
Hydrolysis Of

Hydrolysis of (η5-C5Me5)MMe4(M = Mo, W) and the Formation of Organometallic Oxides withμ3-CH Methylidyne andμ-CH2Methylidene Groups:  Model Compounds for Catalysis on Metal Oxide Surfaces†

2000 ◽  
Vol 19 (8) ◽  
pp. 1549-1555 ◽  
Author(s):  
Olexandr I. Guzyr ◽  
Jörg Prust ◽  
Herbert W. Roesky ◽  
Christopher Lehmann ◽  
Markus Teichert ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Oxide Surfaces ◽  
Model Compounds ◽  
Metal Oxide Surfaces ◽  
Hydrolysis Of

Seed-Mediated Liquid Phase Deposition Method for TiO2 Nanostructure Growth on ITO Substrate: Effect of Surfactant

2011 ◽  
Vol 364 ◽  
pp. 393-397 ◽  
Author(s):  
Liszulfah Roza ◽  
Akrajas Ali Umar ◽  
Mohd Yusri Abd Rahman ◽  
Muhamad Mat Salleh
Keyword(s):  
Liquid Phase ◽  
Metal Oxide ◽  
Substrate Surface ◽  
Typical Result ◽  
Liquid Phase Deposition ◽  
Control Growth ◽  
Fluoro Complex ◽  
Seed Mediated ◽  
Hydrolysis Of ◽  
Metal Oxide Film

This paper reports the study on the effect of the surfactants, cetyltrimethylammonium bromide (CTAB) and hexamethylenetetramine (HMT) on the growth of TiO2 nanostructures on ITO surface. TiO2 nanostructures were prepared using a seed-mediated liquid phase deposition (LPD) method. LPD is an electrolysis deposition of metal oxide via hydrolysis of metal-fluoro complex in the presence of boric acid at ambient temperature. In typical case, this method allows the formation of metal oxide film on the substrate surface. Since the properties strongly depend on shape at this length scale, the morphology control growth of TiO2 nanostructures is highly demanded in order to produce desired properties in application. In this work we demonstrate the growth of wire like structure of TiO2 (instead of film) on ITO surface via a seed-mediated liquid phase deposition in the present of surfactant. In typical result, TiO2 with diameter ca. 40 nm at the bottom of nanowire to ca. 10 nm at the nanowire tip can be successfully grown on the surface. The effect of surfactant and their concentration on the growth characteristics of TiO2 nanostructure will be discussed.

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