Surfactant controlled preparation of mesostructured transition-metal oxide compounds

Ciesla, Ulrike; Demuth, Dirk; León, R.; Petroff, P. M.; Stucky, Galen D.; Unger, Klaus K.; Schüth, Ferdi

doi:10.1039/c39940001387

Cited by 183 publications

(115 citation statements)

References 6 publications

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“…Recent studies have resulted in the use of liquid crystal-like arrays of main group or transition metal ions coordinated with organic molecules and clusters to form crystalline mesostructured phases. Amphiphilic molecules have been used as templating agents for mestostructured solids, including silicates (1, 2), aluminates (3)(4)(5), antimonates (6), and transition metal oxides such as tungsten (7,8),…”

Section: Introductionmentioning

confidence: 99%

Layered Alkyltrimethylammonium Chromates: Thermal and Structural Investigations and Crystal Structure of the Anhydrous Bisoctyltrimethylammonium Dichromate

Fosse

Caldés

Joubert

et al. 1998

Journal of Solid State Chemistry

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Section: Introductionmentioning

confidence: 99%

Layered Alkyltrimethylammonium Chromates: Thermal and Structural Investigations and Crystal Structure of the Anhydrous Bisoctyltrimethylammonium Dichromate

Fosse

Caldés

Joubert

et al. 1998

Journal of Solid State Chemistry

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“…Mesoporous materials based on transition metal oxide used titanium alkoxides with chelating agents such as acetylacetone in the presence of surfactants to produce stable hexagonal packed pores [113][114][115]. Recently, ordered large pore mesostructures of TiO2 ZrO2 Nb2O5 Ta2O5 A12O3 SnO2 SiO2 WO3 HfO2 ZrTiO4 have been synthesised using amphiphilic block copolymers of poly(alkeneoxide) as structure directing agents and inorganic salts as precursors.…”

Section: Liquid Crystal Templating Mechanismmentioning

confidence: 99%

Biomimetic Materials Synthesis

Nedoluzhko

Douglas

2001

Physics and Chemistry Basis of Biotechnology

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The study of mineral formation in biological systems, biomineralisation, provides inspiration for novel approaches to the synthesis of new materials. Biomineralisation relies on extensive organic-inorganic interactions to induce and control the synthesis of inorganic solids. Living systems exploit these interactions and utilise organised organic scaffolds to direct the precise patterning of inorganic materials over a wide range of length scales. Fundamental studies of biomineral and model systems have revealed some of the key interactions which take place at the organic-inorganic interface. This has led to extensive use of the principles at work in biomineralisation for the creation of novel materials. A biomimetic approach to materials synthesis affords control over the size, morphology and polymorph of the mineral under mild synthetic conditions.In this review, we present examples of organic-inorganic systems of different kinds, employed for the synthesis of inorganic structures with a controlled size and morphology, such as individual semiconductor and metal nanoparticles with a narrow size distribution, ordered assemblies of the nanoparticles, and materials possessing complex architectures resembling biominerals. Different synthetic strategies employing organic substances of various kinds to control crystal nucleation and growth and/or particle assembly into structures organised at a larger scale are reviewed. Topics covered include synthesis of solid nanoparticles in micelles, vesicles, protein shells, organisation of nanocrystals using biomolecular recognition, synthesis of nanoparticle arrays using ordered organic templates.

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“…The mechanism suggested by Monnier et al [2] implies the possibility of substituting the silicate with other metal oxides to prepare a wide range of mesostructured oxidic materials. Subsequently, mesostructured surfactant composites of tungsten oxide, antimony oxide, and other metal oxides have been synthesized [3,4]. However, a major problem of these nonsiliceous materials is the removal of the template: it was neither possible to remove the surfactant by conventional methods like calcination or extraction nor by oxygen plasma calcination without destroying the pore structure.…”

Section: Introductionmentioning

confidence: 99%

Estimating Thermal Stability of Phosphated and Phosphated Sulfated Mesoporous Zirconia

Phong¹,

Hong

2016

JST

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Mesoporous phosphated zirconia (m-PZ) and mesoporous phosphated sulfated zirconia (m-PSZ) were synthesized through condensation methods using Zr 3 (PO 4 ) 4 and Zr(SO 4 ) 2 as precursors, respectively. The precursors, solvents with suitable molar or mass ratios were mixed at 100 o C for 48 hours to obtain the mesoporous channels. An oxophosphate process was used to synthesize the m-PSZ material for improving its thermal stability. Some techniques were used to characterize the materials such as SAXRD, TG-DTA and TEM.

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Surfactant controlled preparation of mesostructured transition-metal oxide compounds

Abstract: The use of surfactants as templates allows the synthesis of mesostructured transition-metal oxides by a cooperative, interface controlled condensation process

Cited by 183 publications

References 6 publications

Layered Alkyltrimethylammonium Chromates: Thermal and Structural Investigations and Crystal Structure of the Anhydrous Bisoctyltrimethylammonium Dichromate

Layered Alkyltrimethylammonium Chromates: Thermal and Structural Investigations and Crystal Structure of the Anhydrous Bisoctyltrimethylammonium Dichromate

Biomimetic Materials Synthesis

Estimating Thermal Stability of Phosphated and Phosphated Sulfated Mesoporous Zirconia

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