Assembling of 12-Tungstophosphoric Acid into Amino-Modified SBA-15 and its Catalytic Performance

Hong Qi Guo; Gong Yan; Ming Qing Chen; Shi Rong Liu

doi:10.4028/www.scientific.net/AMR.465.224

Paper Titles

Effective Method for Preparation of Surface NH₂-Functionalized SBA-15 Mesoporous Silica
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Solvothermal Synthesis of Nickel Glycolate Polymer and NiO Microtubes and Their Cr(VI) Absorbing Properties
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Fabrication and Visible Response of Au-TiO₂ (P25) Composite Photocatalyst with Obvious Surface Plasmon Resonance Effect
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Preparation of WC-5TiC-10Co Nanometer Powder and Performance Study of Sintering Samples
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Assembling of 12-Tungstophosphoric Acid into Amino-Modified SBA-15 and its Catalytic Performance
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PMMA Modified PVDF Hollow Fiber Ultrafiltration Membranes
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Formulation and Evaluation of a Gel-Like Ascorbic Acid Multiple Emulsions
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The Hydrophobic Nanoparticles Adsorption Layer on Core Surface and its Properties
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Interface Effect on Properties of Fe/BaTiO₃/Fe Junction
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 465Assembling of 12-Tungstophosphoric Acid into...

Assembling of 12-Tungstophosphoric Acid into Amino-Modified SBA-15 and its Catalytic Performance

Abstract:

12-tungstophosphoric acid was supported on amine-modified SBA-15 by impregnation. The structure and properties of the catalyst were characterized by FT-IR spectroscopy, X-ray diffraction, N2 adsorption-desorption, TEM,Raman spectra and NH3–TPD technology.the result confirmed the mesostructure for SBA-15 and the Keggin structure of the heteropolyanions was preserved. The tungstophosphoric acid can disperse in the pore of the support SBA-15/NH2, but the acidity of the catalyst reduced. The catalytic activities of the catalysts were evaluated for the esterification reaction of ethyl acetoacetate and ethylene glycol .and the catalysts supported on amine-modified SBA-15 show excellent reusability and selectivity.