SBA-15 mesoporous silica highly functionalized with propylsulfonic pendants: A thorough physico-chemical characterization

Cattaneo, Alice; Ferrara, Chiara; Villa, Davide; Angioni, Simone; Milanese, Chiara; Capsoni, Doretta; Grandi, S.; Mustarelli, Piercarlo; Allodi, Valentina; Mariotto, G.; Brutti, Sergio; Quartarone, Eliana

doi:10.1016/j.micromeso.2015.08.011

Cited by 39 publications

(33 citation statements)

References 44 publications

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“…However, after Pr-SO3H functionalization, the amount of acid sites was still ~two-fold lower than that of the commercial Amberlyst-15 catalyst. Si, asymmetric vibrations) [39,40]. In addition, all the samples showed the O-H bending vibration of water at 1640 cm -1 .…”

Section: Characterization Of Catalystsmentioning

confidence: 90%

Propylsulfonic acid functionalized mesoporous silica catalysts for esterification of fatty acids

Jeenpadiphat

Björk

Odén

et al. 2015

Journal of Molecular Catalysis A: Chemical

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The catalytic properties of three types of mesoporous silica SBA-15 (rope, rod and fiber), with 9.2 nm or 12.1 nm large mesopores, were examined with respect to their morphology and pore size. Commercially available Amberlyst-15 and the small pore sized MCM-41 were used for comparison. The catalysts were prepared by functionalization of the silica supports with propyl sulfonic acid (Pr-SO3H) using post-synthesis grafting with 3-mercaptopropyltrimethoxysilane as a propyl-thiol precursor. All materials remained in a well-ordered hexagonal mesoporous structure after Pr-SO3H functionalization. The performance of the Pr-SO3H-functionalized mesoporous silicas was evaluated in terms of their catalytic activity in the esterification of oleic acid with short (methanol) and long (glycerol) chain alcohols, i.e. to test the effect of the pore size on the substrate conversion and product yield. The synthesized catalysts were highly active and the product composition could be tuned by selective choice of the mesopore size. The Pr-SO3H-functionalized rope-shaped SBA-15 gave the highest catalytic activity (in terms of the highest methyl oleate and triglyceride yields and oleic acid conversion level), which was higher than that obtained with the commercial Amberlyst-15 catalyst. A high acid amount, large specific surface area and a suitable pore size are the likely reasons for the high yield gained by Pr-SO3H-functionalized rope-shaped SBA-15 silica.

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Section: Characterization Of Catalystsmentioning

confidence: 90%

Propylsulfonic acid functionalized mesoporous silica catalysts for esterification of fatty acids

Jeenpadiphat

Björk

Odén

et al. 2015

Journal of Molecular Catalysis A: Chemical

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“…Cattaneo et al prepared organosulfonic modified SBA-15 silicas for catalytic applications in organic reactions. 353 Catalytic activity of the propylsulfonic pendants in the ordered mesostructured of SBA-15 was restricted to 20 mol %. The extent of the propylsulfonic functionalization into the silica materials was monitored through 29 Si ssNMR spectroscopy.…”

Section: Fig 32 2d 13 C-1 H Hetcor Nmr Spectra Of As Synthesized (Rimentioning

confidence: 99%

Combined solid-state NMR, FT-IR and computational studies on layered and porous materials

et al. 2018

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Understanding the structure-property relationship of solids is of utmost relevance for efficient chemical processes and technological applications in industries. This contribution reviews the concept of coupling three well-known characterization techniques (solid-state NMR, FT-IR and computational methods) for the study of solid state materials which possess 2D and 3D architectures and discusses the way it will benefit the scientific communities. It highlights the most fundamental and applied aspects of the proactive combined approach strategies to gather information at a molecular level. The integrated approach involving multiple spectroscopic and computational methods allows achieving an in-depth understanding of the surface, interfacial and confined space processes that are beneficial for the establishment of structure-property relationships. The role of ssNMR/FT-IR spectroscopic properties of probe molecules in monitoring the strength and distribution of catalytic active sites and their accessibility at the porous/layered surface is discussed. Both experimental and theoretical aspects will be considered by reporting relevant examples. This review also identifies and discusses the progress, challenges and future prospects in the field of synthesis and applications of layered and porous solids.

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“…Figure (b) shows the FTIR spectra of the different parent mesoporous SBA‐15 and Al‐, Pd‐ and Ni‐ loaded SBA‐15 samples. The four characteristic peaks of pure SBA‐15 sample are observed at 467 cm −1 (Si–O–Si and O–Si–O bending vibrations), 800 cm −1 (Si–O–Si, symmetric vibration), 962 cm −1 (Si–O bending vibration) and the large band at 1090 cm −1 (Si–O–Si, asymmetric vibrations) . In addition, the O–H bending and stretching vibrations of water at 1640 and 3450 cm −1 was observed, respectively.…”

Section: Resultsmentioning

confidence: 94%

Corncob to value‐added chemical transformation by metal/beta zeolite and metal/mesoporous SBA‐15 catalytic pyrolysis

Jeenpadiphat

Kasiban

Tungasmita

2015

J of Chemical Tech & Biotech

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BACKGROUND: Although the pyrolysis of biomass has been investigated by many researchers, there are no data available regarding conversion to value added ester compounds from catalytic corncob pyrolysis at low temperature. In this present research thermal and catalytic cracking of residue corncob was performed at 250 to 600 ∘ C under N 2 . The performance of two acidic porous catalysts, metal-beta zeolite and mesoporous SBA-15, with different metal (Al, Pd and Ni) loadings, were compared with the non-catalytic reaction.

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SBA-15 mesoporous silica highly functionalized with propylsulfonic pendants: A thorough physico-chemical characterization

Cited by 39 publications

References 44 publications

Propylsulfonic acid functionalized mesoporous silica catalysts for esterification of fatty acids

Propylsulfonic acid functionalized mesoporous silica catalysts for esterification of fatty acids

Combined solid-state NMR, FT-IR and computational studies on layered and porous materials

Corncob to value‐added chemical transformation by metal/beta zeolite and metal/mesoporous SBA‐15 catalytic pyrolysis

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