Anionic surfactant-templated mesoporous silica (AMS) nano-spheres with radially oriented mesopores

Organically Functionalized Mesoporous Silica by Co‐structure‐Directing Route

“…g) Reproduced with permission. [ 92 ] Copyright 2008, Elsevier Inc. CSDA with precisely controlled pH (Figure 7 g). [ 92 ] GarciaBennett et al synthesized AMS-8 nanoparticles by using C 12 GluA and APES with the addition of a block-copolymer, P123 (EO 20 PO 70 EO 20 ).…”

“…[ 92 ] Copyright 2008, Elsevier Inc. CSDA with precisely controlled pH (Figure 7 g). [ 92 ] GarciaBennett et al synthesized AMS-8 nanoparticles by using C 12 GluA and APES with the addition of a block-copolymer, P123 (EO 20 PO 70 EO 20 ). [ 102 ] P123 under basic conditions at temperatures above its cloud point has shown the effect of controlling the size of the mesoporous particles, which is considered to be achieved by the effective dispersion of the nucleation sites of the mesoporous silicas by P123.…”

Effect of alcohol on morphology and mesostructure control of anionic-surfactant-templated mesoporous silica (AMS)

“…Recently our group has synthesized spherical mesoporous silica with radially oriented mesopores using anionic surfactant [39]. Herein, to investigate the mechanism of anionic-surfactant-templated mesoporous silica synthesis in depth, we performed a detailed study on the effect of alcohols in the synthesis of AMS.…”

Preparation of Mn2O3 catalyst with core–shell structure via spray pyrolysis assisted with glucose

“…The Mn 2 O 3 -8-as made sample exists in solid spheres with smooth surfaces, since the solvent evaporation characteristic time (s SV ) is approximately equal to the solute diffusion characteristic time (s SI ) [15]. Meanwhile, the formation of the spherical shape is driven by the surface tension to minimize the surface free energy [10]. The diameter of microspheres is in the range 0.5-5.0 lm, mostly at about 2.0 lm.…”

“…and H 2 O 2 still has problems, including the formation of iron-containing waste sludge, irreversible loss of activity of the reagent, and limited pH range (2.0-5.0) [7][8][9]. Many methods for preparing Mn 2 O 3 nanocrystals with various morphologies [10][11][12] have been reported, including chemical oxidation [13], ethanol-thermal reduction of MnO 2 [14], the reduction of KMnO 4 with hydrazine [15], and c-ray radiation of KMnO 4 aqueous solution [10]. Compared to the above-mentioned preparation processes which are time-consuming and require multiple steps, the novel preparation process of spray pyrolysis assisted with structure-directing agent has developed a simple and time-saving approach to producing manganese oxides that are especially suitable for industrial-scale production.…”