Toward a System of Zirconium Chemistry

Blumenthal, Warren B.

doi:10.1021/ie50531a039

“…Zirconium salt solutions have a number of industrial uses [59,60] and their chemistry has been studied extensively [61][62][63][64][65][66][67][68][69][70][71][72][73]. In general, zirconium(IV) cations have a strong tendency to hydrolyze in aqueous medium, i.e.…”

Section: Formation Of Primary Solidmentioning

confidence: 99%

“…, which include water as a ligand [80]. Hence, it is not hydrous zirconia that is precipitated from these solutions but sulfates, and the large number of possible sulfates [61,81,82], particularly basic sulfates [61,83,84,85], suggests that numerous complexes of different constitution may exist in solution. Consistently, no particular species have been reported as being stable over a range of conditions in zirconium sulfate solutions.…”

Section: Formation Of Primary Solidmentioning

confidence: 99%

oxo‐anion modified oxides

2020

Catalysis From a to Z

0

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“…3,4 Early structural representations of the gels represented them as zirconyl compounds such as ZrO(H 2 PO 4 ) 2 . 5 In 1964 crystalline forms of zirconium phosphate were prepared by refluxing the gel in phosphoric acid solutions. 6 Its formula was determined to be Zr(HPO 4 ) 2 •H 2 O; shortly thereafter the crystal structure was determined and refined to reveal a layered compound.…”

Section: Early Historymentioning

confidence: 99%

Surface modification of layered zirconium phosphates: a novel pathway to multifunctional materials

Mosby

¹

,

Díaz

²

,

Clearfield

³

2014

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The intercalation of inorganic layered materials has resulted in a wide range of applicability. In such cases the applicability of the material is largely dependent upon the species intercalated within the layer, and the layered material acts largely as a host. Recently, the surface modification of inorganic layered materials has been investigated and it has been shown that the exterior layers can be exclusively functionalized. The advent of surface chemistry allows for the synthesis of particles with both a controlled interlayer and surface. This approach can be used to tailor nanoparticles for specific applications. Herein we review the surface chemistry of α-zirconium bis(monohydrogen orthophosphate) monohydrate (Zr(HPO4)2·H2O, α-ZrP) along with some applications of recent interest. Not only can these reactions be applied to α-ZrP, but similar chemistry can also be expanded to other layered materials and systems.

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“…Zirconium salt solutions have a number of industrial uses [59,60] and their chemistry has been studied extensively [61][62][63][64][65][66][67][68][69][70][71][72][73]. In general, zirconium(IV) cations have a strong tendency to hydrolyze in aqueous medium, i.e.…”

Section: Formation Of Primary Solidmentioning

confidence: 99%

“…Sulfate-bridged complexes of the constitution [Zr n (OH) n+1 (SO 4 , which include water as a ligand [80]. Hence, it is not hydrous zirconia that is precipitated from these solutions but sulfates, and the large number of possible sulfates [61,81,82], particularly basic sulfates [61,83,84,85], suggests that numerous complexes of different constitution may exist in solution. Consistently, no particular species have been reported as being stable over a range of conditions in zirconium sulfate solutions.…”

Section: Formation Of Primary Solidmentioning

confidence: 99%

Oxo‐Anion Modified Oxides

Jentoft

¹

2008

Handbook of Heterogeneous Catalysis

1

0

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The sections in this article are Introduction Classification Variety of Materials and Focus Target Properties Structure–Activity Relationships Effect of Sulfate and Other Oxo‐Anions Preparation Routes Formation of Primary Solid Formation of Pure Hydrous Zirconia Formation of Sulfate‐Containing Hydrous Zirconia Template‐Directed Formation of Primary Solid Commercially Available Precursors Anion‐Modification of Primary Solid Addition of Oxo‐Anions to Primary Solid in Liquid Medium Sulfation of Primary Solid via Gas Phase Introduction of Oxo‐Anions Using Solid Precursors Addition of Promoters (Optional) Promoters Structure–Activity Relationships Effect of Promoters Addition of Promoters Calcination Events Occurring During Calcination Effect of Bed Volume and Packing Effect of Calcination Temperature on Physical Properties Effect of Calcination Temperature on Catalytic Performance Effect of Holding Time Calcination: A Summary Sulfation of Thermally Treated Crystalline Oxides Sulfation with Aqueous Solutions (Solid–Liquid Phase) Sulfation via Gas Phase (Solid–Gas Phase) Sulfation of Zirconia using Solid Sulfate Precursors Addition of Noble Metals Activation Summary

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Toward a System of Zirconium Chemistry

Cited by 26 publications

References 18 publications

oxo‐anion modified oxides

oxo‐anion modified oxides

Surface modification of layered zirconium phosphates: a novel pathway to multifunctional materials

Oxo‐Anion Modified Oxides

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