Synthesis, Characterization and Catalysis of Ce-MCM-41

Chien, Shu‐Hua; Kuo, Ming-Feng; Chen, Chun-Long

doi:10.1002/jccs.200500103

Cited by 7 publications

(4 citation statements)

References 27 publications

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“…According to the data presented in Table 3, the adsorbent showed pore diameter values between 20-500 Å, which correspond to mesoporous IUPAC, 1982), thereby confirming the observations in Figure 3.The increases in the surface area, diameter, volume, and area of the pores following calcination indicate that the calcination process was effective. These results are in agreement with the literature for MCM-41 (Beck et al, 1992;Chien et al, 2005;Silva, 2007a;Cai et al, 2011;Fu et al, 2011;Li et al, 2011;Saladino et al, 2011;Bing et al, 2012;Du & Yang, 2012;Jiang et al, 2012a-b;Ghorbani et al, 2013).…”

Section: Textural Characterization (N 2 Adsorption/desorption Using Tsupporting

confidence: 92%

Synthesis, Characterization, and Application of the Mesoporous Molecular Sieve Sr-MCM-41 in the Removal of Naphthenic Acids From a Model Mixture of Aviation Kerosene by Adsorption

Nascimento

Duarte

Schuler

et al. 2014

BJPG

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The MCM-41 mesoporous molecular sieves have attracted a great deal of interest due to their application in adsorption processes, like in the removal of naphthenic acids, which are directly responsible for acidity and corrosiveness of petroleum. The objective of this work is to explore the synthesis, characterization, and application of Sr-MCM-41 in removing naphthenic acids from a model mixture of aviation kerosene (jet fuel) by adsorption. The adsorbent was characterized and a factorial design was used to determine the best operating conditions. The characterization results indicated that the incorporation of strontium did not compromise the mesoporous structure, and that the material showed a good degree of organization. The factorial design indicated that the highest adsorption capacity was obtained for an acid concentration of 7wt.%, an adsorbent amount of 0.01g, and a stirring speed of 420rpm. This study demonstrates the potential of this adsorbent for the removal of the naphthenic acids that are present in jet fuel.

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Section: Textural Characterization (N 2 Adsorption/desorption Using Tsupporting

confidence: 92%

Synthesis, Characterization, and Application of the Mesoporous Molecular Sieve Sr-MCM-41 in the Removal of Naphthenic Acids From a Model Mixture of Aviation Kerosene by Adsorption

Nascimento

Duarte

Schuler

et al. 2014

BJPG

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“…Also, there was an increase in the unit cell parameters and pore diameter, which can be attributed to the Ce atomic size (radius = 1.01 Å) being larger than that of Si (radius = 0.54 Å), which corroborates the XRD results. These results are consistent with reports of other authors (Chien et al, 2005;Bing et al, 2012Bing et al, , 2013González Vargas et al, 2013;Akondi et al, 2014).…”

Section: Preliminary Testsupporting

confidence: 94%

“…The samples had hexagonal or spherical micelle-like edged rods. Similar micrographs were also obtained by Chien et al (2005), Park et al (2007), Akondi et al (2012) and Bing et al (2013).…”

Section: Preliminary Testsupporting

confidence: 86%

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Cerium Incorporated Into a Mesoporous Molecular Sieve (Mcm-41)

Nascimento

Duarte

Barbosa

2016

Braz. J. Chem. Eng.

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-The synthesis and characterization of a mesoporous molecular sieve (MCM-41) was studied due to its high surface area and large pore volume and to target potential applications in adsorption and catalysis. Rare earth elements have special chemical properties and are efficient promoters for supports. In this study, a mesoporous molecular sieve that incorporates the transition metal cerium (Ce-MCM-41) was synthesized using the hydrothermal method with the goal of improving the structural properties for adsorption. The molar composition of the obtained gel was 1CTMABr: 4SiO2: 1Na2O: 0.2Ce2O3: 200H2O. The pure mesoporous molecular sieve MCM-41 was also synthesized using the same method. The materials were characterized by the following techniques: XRD, BET/BJH, SEM/EDS, TG and FT-IR. A preliminary test to evaluate the materials as adsorbents to remove naphthenic acids present in jet fuel was performed. The results of the characterization showed that the incorporation of the metal cerium did not affect the MCM-41 structure and that mesporous materials were formed. Ce-MCM-41 exhibited good thermal stability, high specific surface area and large pore volume, which are characteristics of a good adsorbent. From the preliminary test, the adsorptive capacity increased by 60% with the incorporation of cerium in the MCM-41 structure.

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Synthesis of Novel Phosphorylated Daidzein Derivatives and ESI Investigation on Their Non‐Covalent Complexes with Lysozyme

Chen¹,

Xiaona²,

Qu³

et al. 2007

Chin. J. Chem.

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Daidzein (7,4'-dihydroxyisoflavone) was phosphorylated by a modified Atherton-Todd reaction. The structures of the five target product, were determined by X-ray, IR, NMR and ESI-MS. Electrospray ionization results show that in the gas phase all the phosphorylated daidzein derivatives could form non-covalent complexes with the protein lysozyme, while non-covalent complexes were not detected in the mixed solution of daidzein with lysozyme. Relative affinity of every non-covalent complex was obtained according to its different decomposition orifice voltage.

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Synthesis, Characterization and Catalysis of Ce-MCM-41

Cited by 7 publications

References 27 publications

Synthesis, Characterization, and Application of the Mesoporous Molecular Sieve Sr-MCM-41 in the Removal of Naphthenic Acids From a Model Mixture of Aviation Kerosene by Adsorption

Synthesis, Characterization, and Application of the Mesoporous Molecular Sieve Sr-MCM-41 in the Removal of Naphthenic Acids From a Model Mixture of Aviation Kerosene by Adsorption

Cerium Incorporated Into a Mesoporous Molecular Sieve (Mcm-41)

Synthesis of Novel Phosphorylated Daidzein Derivatives and ESI Investigation on Their Non‐Covalent Complexes with Lysozyme

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