Silylation of montmorillonite surfaces: Dependence on solvent nature

Su, Linna; Qi, Tao; He, Hongping; Zhu, Jianxi; Yuan, Peng

doi:10.1016/j.jcis.2012.08.077

Cited by 63 publications

(40 citation statements)

References 36 publications

(62 reference statements)

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“…The most method used for modifying clay minerals is using silanes as silicon source in the synthesis of clay minerals [22]. Silane grafting, also known as silylation, was proven to be an efficient method to modify clay minerals surface.…”

Section: Modification Of Montmorillonitementioning

confidence: 99%

See 1 more Smart Citation

Synthesis and Characterization of Chitosan/Phosphotungstic Acid-Montmorillonite Modified by Silane for DMFC Membrane

Permana¹,

Purwanto²,

Ramadhan³

et al. 2015

Indones. J. Chem.

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Section: Modification Of Montmorillonitementioning

confidence: 99%

“…According to literature [22] silylation consist of four steps; the first step is hydrolysis reaction between silane and water molecules in montmorillonite or atmosphere. The existence of water molecules induced formation of silanol groups (Si-OH) which contribute as reactive side to the next step.…”

Section: Modification Of Montmorillonitementioning

confidence: 99%

Synthesis and Characterization of Chitosan/Phosphotungstic Acid-Montmorillonite Modified by Silane for DMFC Membrane

Permana¹,

Purwanto²,

Ramadhan³

et al. 2015

Indones. J. Chem.

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show abstract

“…Surface modification of clay minerals has been studied extensively since the produced clay minerals exhibit appropriate properties for many material science applications , such as clay polymer nanocomposites (CPNs), environmental materials and drug delivery systems (Isoda et al, 2000;Su et al, 2013). Recently, CPNs have received a widespread attention by scientists.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, until now three basic types of interactions (interlayer, external surface, and "broken" edge grafting) between silane and swelling clay minerals such as Mt, under mild conditions (e.g., room temperature and no need of pre-intercalation) have been proposed (He et al, 2005. Organosilanes would be bonded onto clay mineral surfaces through a condensation reaction between the silanol groups of clay mineral surfaces and hydroxyl groups of hydrolyzed silanes (Su et al, 2013). Therefore, the organosilane should contain`Si\X groups (in which X could be OR, Cl, etc.)…”

Section: Introductionmentioning

confidence: 99%

“…Some of these effects have been studied so far. However, getting a foregone conclusion is still a challenging task and some results are contradictive (Herrera et al, 2005;Shanmugharaj et al, 2006;Shimojima et al, 2001;Su et al, 2012Su et al, , 2013. Accordingly, studying the effects of these parameters on the silylation reaction of different organosilanes seems essential.…”

Section: Introductionmentioning

confidence: 99%

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Study of the modification of montmorillonite with monofunctional and trifunctional vinyl chlorosilane

Sepehri

Rafizadeh

Hemmati³

et al. 2014

Applied Clay Science

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Fundamental Insights into the Covalent Silane Functionalization of NiFe Layered Double Hydroxides

Carrasco

Silva

Oestreicher

et al. 2020

Chemistry A European J

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Layered double hydroxides (LDHs) are ac lass of 2D anionic materials exhibiting wide chemical versatility and promising applications in different fields, ranging from catalysis to energy storage and conversion.H owever,t he covalent chemistry of this kind of 2D materials is still barely explored. Herein, the covalentf unctionalization with silanes of am agnetic NiFe-LDH is reported. The synthetic route consists of at opochemical approach followed by anion exchange reaction with surfactant molecules prior to covalent functionalization with the (3-aminopropyl)triethoxysilane (APTES) molecules. The functionalized NiFe-APTES was fully characterized by X-ray diffraction, infrared spectroscopy, electron microscopy,t hermogravimetric analysis coupled with mass spectrometry and 29 Si solid-state nuclear magnetic resonance, among others. The effect on the electronic properties of the functionalizedL DH was investigated by am agnetic study in combination with Mçssbauer spectroscopy. Moreover,t he reversibility of the silane-functionalizationa t basic pH was demonstrated, and the quality of the resulting LDH was proven by studying the electrochemical performance in the oxygen evolution reaction in basic media. Furthermore, the anion exchange capability for the NiFe-APTES was tested employing Cr VI ,r esulting in an increase of 200 %o ft he anion retention. This report allows for an ew degree of tunability of LDHs, openingt he door to the synthesis of new hybrid architectures and materials.[a] Dr.Figure 2. FESEM (A), TEM (B) and mapping images (bottom panel) of NiFe-APTES. The inset in (A) shows DLS and the inset in (B) showst he SAED pattern. Mapping imagesare obtained from the single particle in the bottom left image( scale bar of 100 nm).

show abstract

Silylation of montmorillonite surfaces: Dependence on solvent nature

Cited by 63 publications

References 36 publications

Synthesis and Characterization of Chitosan/Phosphotungstic Acid-Montmorillonite Modified by Silane for DMFC Membrane

Synthesis and Characterization of Chitosan/Phosphotungstic Acid-Montmorillonite Modified by Silane for DMFC Membrane

Study of the modification of montmorillonite with monofunctional and trifunctional vinyl chlorosilane

Fundamental Insights into the Covalent Silane Functionalization of NiFe Layered Double Hydroxides

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