Correlation of sol–gel processing parameters with microstructure and properties of a ceramic product

Thanabodeekij, N.; Sathupunya, Mathavee; Jamieson, A. M.; Wongkasemjit, Sujitra

doi:10.1016/j.matchar.2003.08.001

Cited by 24 publications

(4 citation statements)

References 10 publications

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“…In addition, the bands related to MgOAl became stronger at higher calcination temperatures. 27) The SEM micrographs shown in Fig. 4 reveal the microstructure of the prepared fibers, which changed significantly with increasing calcination temperatures.…”

Section: ¹1mentioning

confidence: 96%

Synthesis and adsorption properties of mesoporous MgAl2O4 spinel fibers by coaxial electrospinning

Wei

et al. 2018

J. Ceram. Soc. Japan

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Mesoporous magnesium aluminate (MgAl 2 O 4 ) spinel fibers were prepared using a coaxial electrospinning technique. The phase composition, porous structure and adsorption performance of the mesoporous MgAl 2 O 4 spinel fibers were investigated. Differential thermal/thermo-gravimetric and X-ray-diffraction analysis revealed that gel fibers began to crystallize into the MgAl 2 O 4 spinel phase at 700°C and became fully crystallized at 900°C. The morphology changes in the fibers were tracked by use of a scanning electron microscope and transmission electron microscope, which showed fibers with a mesoporous structure formed at 900°C. The BrunnerEmmet-Teller specific surface area of MgAl 2 O 4 spinel fibers is 36.95 m 2 /g. In addition, the dye adsorption capacity of the fibers shows an adsorption percentage of over 80.0% in 20 mg/l methylene blue after 2 min of adsorption. The kinetic study demonstrated that the adsorption data fit the pseudo-second-order kinetic model more naturally.

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Section: ¹1mentioning

confidence: 96%

Synthesis and adsorption properties of mesoporous MgAl2O4 spinel fibers by coaxial electrospinning

Wei

et al. 2018

J. Ceram. Soc. Japan

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“…The TGA of the fresh Co/TiO2-MgAl2O4 nanocomposite showed a gradual weight loss up to 5% with the increase in temperature, most of which was rooted in moisture removal, while the sudden weight loss at a high temperature was due to the decomposition of bonds and the formation of the intermediate complexes of a composite, as presented in Figure 6c [14] The FTIR analysis of the prepared fresh samples is shown in Figure 7. The IR spec trum of calcined MgAl2O4 observed at 912 cm −1 , which corresponded to the stretching vi bration of Mg-O-Al falling into inorganic bands and Al-O bonds, was indicative of th crystal MgAl2O4 spinel [53][54][55]. With Co/TiO2-MgAl2O4, two peaks identified at 900 cm − corresponded to the vibration of Mg-O-Al, where the peak identified at 744 cm −1 corre sponded to O-Ti-O bond stretching vibrations depicting an anatase morphology [56,57 because the band range of 500-800 cm −1 followed the anatase crystal vibration modes [58] The presence of a small peak around 850 cm −1 corresponded to O-Co-O, which indicated the formation of Co3O4 [59].…”

Section: Characterization Of Catalystmentioning

confidence: 97%

Performance Analysis of TiO2-Modified Co/MgAl2O4 Catalyst for Dry Reforming of Methane in a Fixed Bed Reactor for Syngas (H2, CO) Production

et al. 2021

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Co/TiO2–MgAl2O4 was investigated in a fixed bed reactor for the dry reforming of methane (DRM) process. Co/TiO2–MgAl2O4 was prepared by modified co-precipitation, followed by the hydrothermal method. The active metal Co was loaded via the wetness impregnation method. The prepared catalyst was characterized by XRD, SEM, TGA, and FTIR. The performance of Co/TiO2–MgAl2O4 for the DRM process was investigated in a reactor with a temperature of 750 °C, a feed ratio (CO2/CH4) of 1, a catalyst loading of 0.5 g, and a feed flow rate of 20 mL min−1. The effect of support interaction with metal and the composite were studied for catalytic activity, the composite showing significantly improved results. Moreover, among the tested Co loadings, 5 wt% Co over the TiO2–MgAl2O4 composite shows the best catalytic performance. The 5%Co/TiO2–MgAl2O4 improved the CH4 and CO2 conversion by up to 70% and 80%, respectively, while the selectivity of H2 and CO improved to 43% and 46.5%, respectively. The achieved H2/CO ratio of 0.9 was due to the excess amount of CO produced because of the higher conversion rate of CO2 and the surface carbon reaction with oxygen species. Furthermore, in a time on stream (TOS) test, the catalyst exhibited 75 h of stability with significant catalytic activity. Catalyst potential lies in catalyst stability and performance results, thus encouraging the further investigation and use of the catalyst for the long-run DRM process.

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“…Further, owing to hydrolytically stable nature, it regulates the hydrolysis rate and condensation processes in the eld of sol-gel processes. Moreover, silatranes are also used as adhesive promoter and strong reducing agent for conversion in organic synthesis [21][22][23][24][25][26][27][28][29][30][31][32].…”

Section: Introductionmentioning

confidence: 99%

Design, Synthesis, Drug-Likeness and In Silico Prediction of Polycyclic Aromatic Schiff base Tethered Organosilatranes

Singh

Shilpy

Singh³

et al. 2022

Silicon

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The present article includes the generation of aromatic Schiff base tethered organosilatranes via two step synthetic pathways starting from anthracene-10-carbaldehyde and 1H-indole-3-carbaldehyde. The synthesis was achieved by employing condensation reaction followed by transesteri cation methodology. The prepared organosilatranes containing aromatic schiff based ligands were structurally authenticated using spectroscopic techniques such as FT-IR, NMR and mass analysis. The prepared compounds were also scrutinized for in silico physiochemical properties via Molininspiration and ADMET software and the results revealed their good biological potential for drug discovery.

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Correlation of sol–gel processing parameters with microstructure and properties of a ceramic product

Cited by 24 publications

References 10 publications

Synthesis and adsorption properties of mesoporous MgAl<sub>2</sub>O<sub>4</sub> spinel fibers by coaxial electrospinning

Synthesis and adsorption properties of mesoporous MgAl<sub>2</sub>O<sub>4</sub> spinel fibers by coaxial electrospinning

Performance Analysis of TiO2-Modified Co/MgAl2O4 Catalyst for Dry Reforming of Methane in a Fixed Bed Reactor for Syngas (H2, CO) Production

Design, Synthesis, Drug-Likeness and In Silico Prediction of Polycyclic Aromatic Schiff base Tethered Organosilatranes

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