The Pd nanoparticles equal to or smaller than 6 nm in size in the nanocomposites are distributed in the channels of the mesoporous SBA-15. The Pd/SBA-15 nanocomposites exhibit excellent catalytic activities and high reuse ability in air for the Heck carbon-carbon coupling reactions....
SBA-15 Synthesis Hydrothermal Mesopore 1. Introduction Mesoporous materials have controlled morphology due to their large specific surface area and pore volume, uniform and continuously adjustable pore size in nanometer size, and orderly pore structure from one-dimensional to multi-dimensional. The SBA-...
The catalytic activity of Cu/SBA-15 toward the reducing reaction of p-nitrophenol was investigated using UV鈥揤is spectroscope as monitor and discussed further from the viewpoints of reactive kinetics and thermodynamics. Results show that the ordered structure of mesoporous materials was still remained...
Thestructureandpropertiesofthephenyl-modifiedmesoporousmolecularsieveandthesulphonatedproduct ( HSO 3 -Ph-SBA-15 ) werecharacterizedbyXRD , TEM , MASNMR , IRandUV-Vistechni ues.ThePh- SBA-15andHSO 3 -Ph-SBA-15featuredwell-orderedhexagonalarraysofmesoporesandtheporechannelswere similartothoseinpureSBA...
15 with a bimodal micro-mesoporous architecture and a substantial surface area of 325 m2 g–1through a simple one-pot environmentally friendly approach. The material was structurally characterized through the use of different instrumental analyses such as XRD, FTIR, FESEM, TEM, and nitrogen ...
6.Xie X L;Satozawa M;Kunimori K NMR study of pore surfac e and size in the mesoporous material FSM-16[外文期刊] 2000(1/2) 7.Kruk M;Jaroniec M;Ko C H Characterization of the porou s structure of SBA-15 2000 8.Ghanbari-siahkali A;Philippou A;Dwyer J The acidity and catalytic ac...
1a, both of pure SBA-15 and Ru@SBA-15 NCs with different Ru loadings show three peaks at 2θ = 0 .90°, 1.59°, and 1.89° which indexed to the (100), (110), and (200) of the hexagonal mesoporous structure, indicating that the framework of SBA-15 was ...
However, for SBA-15@Schiff‐base@Fe(III), their intensity was slightly reduced, indicating a slight, decrease in the mesoporous structure due to the blocking of holes during the Schiff‐base ligand addition38. Figure 7 The XRD patterns for Pure siliceous SBA-15 (a) and SBA-15@Schiff‐base...
The surface morphology of SBA-15 & IL-SBA-15 and all other composite membranes were analysed using SEM (JEM-5600LV). The retention of mesoporous structure of PIL-SBA-15 was confirmed using TEM photographs (Tecnai T30). The mesoporosity of the samples was studied using N2 sorption analysis. ...
The functionalized mesoporous structure has been used for the SBA-15 modification to improve its adsorptive properties aiming to enhance the life quality by minimization of the environmental effects [9]. SBA-15 modification has been conducted using various components to enhance its quality. For ...