12161-08-9

Usage

Uses

Used in Ceramic Industry:
Zirconyl hydroxide is used as a precursor for the synthesis of monolithic t-ZrO2 (tetragonal structure) nanopowder. This nanopowder is crucial in the production of advanced ceramics due to its high strength, toughness, and resistance to thermal shock. The tetragonal structure of ZrO2 provides these enhanced properties, making it an essential material in the ceramic industry.
Used in Refractory Applications:
The high-temperature stability and resistance to thermal shock of t-ZrO2 nanopowder derived from zirconyl hydroxide make it an ideal material for refractory applications. It is used in the production of refractory bricks, linings, and other components that are exposed to extreme temperatures and harsh environments, such as in furnaces, kilns, and incinerators.
Used in Dental Applications:
The biocompatibility and mechanical properties of t-ZrO2 nanopowder synthesized from zirconyl hydroxide make it a suitable material for dental applications. It is used in the fabrication of dental implants, crowns, and bridges, providing patients with long-lasting and durable dental restorations.
Used in Electronics Industry:
The unique electrical and dielectric properties of t-ZrO2 nanopowder derived from zirconyl hydroxide make it an essential material in the electronics industry. It is used in the production of capacitors, sensors, and other electronic components that require high performance and reliability.

Upstream product

• 7732-18-5 water 
• 7699-43-6 zirconium(IV) oxychloride 

Relevant academic research and scientific papers

Effects of support on bifunctional methanol oxidation pathways catalyzed by polyoxometallate Keggin clusters

H5PV2Mo10O40 polyoxometallate Keggin clusters supported on ZrO2, TiO2, SiO2, and Al2O3 are effective catalysts for CH3OH oxidation reactions to form HCHO, methyl formate (MF), and dimethoxymethane (DMM). Rates and selectivities and the structure of supported clusters depend on the surface properties of the oxide supports. Raman spectroscopy showed that Keggin structures remained essentially intact on ZrO2, TiO 2, and SiO2 after treatment in air at 553 K, but decomposed to MoOx and VOx oligomers on Al 2O3. Accessible protons per Keggin unit (KU) were measured during CH3OH oxidation by titration with 2,6-di-tert-butyl pyridine. For similar KU surface densities (0.28-0.37 KU/nm2), the number of accessible protons was larger on SiO2 than on ZrO 2 and TiO2 and much smaller on Al2O 3 supports, even though residual dimethyl ether (DME) synthesis rates after titrant saturation indicated that the fractional dispersion of KU was similar on the first three supports. These effects of support on structure and on H+ accessibility reflect varying extents of interaction between polyoxometallate clusters and supports. Rates of CH3OH oxidative dehydrogenation per KU were higher on ZrO2 and TiO 2 than on SiO2 at similar KU surface densities (0.28-0.37 KU/nm2) and dispersion, indicating that redox properties of Keggin clusters depend on the identity of the support used to disperse them. ZrO 2 and TiO2 supports appear to enhance the reducibility of anchored polyoxometallate clusters. Rates were much lower on Al 2O3, because structural degradation led to less reactive MoOx and VOx domains. CH3OH reactions involve primary oxidation to form HCHO and subsequent secondary reactions to form DMM and MF. These reactions involve HCHO-CH3OH acetalization steps leading to methoxymethanol (CH3OCH2OH) or hemiacetal intermediates, which condense with CH3OH on acid sites to form DMM or dehydrogenate to form MF. COx formation rates are much lower than those of other reactions, and DME forms in parallel pathways catalyzed by acid sites. Secondary reactions leading to DMM and MF are strongly influenced by the chemical properties of support surfaces. Acidic SiO2 surfaces favored DMM formation, while amphoteric or dehydrogenating surfaces on ZrO 2 and TiO2 led to MF formation, as a result of the varying role of each support in directing the reactions of HCHO and CH 3OH and of the CH3OCH2OH intermediates toward DMM or MF, which was confirmed using physical catalyst-pure support mixtures. These support effects reflect the bifunctional pathways of CH3OH reactions. These pathways are consistent with the effects of residence time and of the partial removal of H+ sites by titration using 2,6-di-tert-butyl pyridine.