TO STUDY THE EFFECT OF MOLAR RATIO OF AL: MG ON THE STRUCTURAL PROPERTIES OF NIO/ A1203-MGO NANOCATALYSTS SYNTHESIS VIA MODIFIED SOL-GEL

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OBEIDAVI A.; SANJABI S.

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Journal: JOURNAL OF NEW MATERIALS Year:2015 | Volume:5 | Issue:4 (20) Page(s): 141-151

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Title

TO STUDY THE EFFECT OF MOLAR RATIO OF AL: MG ON THE STRUCTURAL PROPERTIES OF NIO/ A1203-MGO NANOCATALYSTS SYNTHESIS VIA MODIFIED SOL-GEL

Author(s)

OBEIDAVI A. | SANJABI S. | Issue Writer Certificate

Keywords

AL203-MGOQ2

NI NANOCATALYSTQ2

THE MODIFIED SOL-GELQ2

STRUCTURAL PROPERTIESQ2

SPECIFIC SURFACE AREAQ2

Abstract

In this study, the NiO/AL203-MGO nanocrystalline with 20 wt% Ni were synthesized by using THE MODIFIED SOL-GEL method. The aim of this study is in vestigation of influence molar ratio of AI: Mg on STRUCTURAL PROPERTIES such as phases of nanocatalyst, the crystalline size and nanoparticles, the morphology, the surface area, the pore volume and pore size distribution. For this purpose, seven nanocrystals with different Al: Mg molar ratios (Al: Mg: 1: 1, 2: 1, 3: 1, 4: 1, 1 :2, 1 :3, 1 :4) were synthesized. The prepared powders were characterized by XRD, FTIR, TGA-DSC, FESEM with the energy dispersive Xvray spectroscopy (EDX), TEM and BET-BJH. The results of X-ray analysis showed that increasing the molar ratio of Al to Mg, the solid solution of MgO. NiO was replaced by NiO phase and the crystal size of NiO reduced with increasing this molar ratio. The crystalline size of NiO in the molar ratio of Al to Mg: 3: 1 was about 11 nm. But with increasing Mg to Al molar ratio from 1: 1 to 4: 1, the NiO phase wasn't observed and the crystalline size, with increasing Mg to Al molar ratio from 1: 1 to 4: 1 was increased from 6.7 to 9.8 nm. Also, with increasing molar ratio of Al to Mg 2: 1 to 3: 1, the SPECIFIC SURFACE AREA of nanocatalysts were reduced from 120 m2/g to 100m2/g .TEM image and the selected area diffraction pattern of nanoparticles with molar ratio of 2: 1 confirmed mesopore stfucture and nanocrystalline of catalysts synthesized.

Cites

SYNTHESIS AND CHARACTERIZATION OF NANOPARTICLES OF MAGNESIUM-COPPER OXIDE WITH PARAMAGNETIC PROPERTIES

References

SYNTHESIS AND CHARACTERIZATION OF ZNO NANOCRYSTAL COMPOSITES WITH HIGH SURFACE AREA SUPPORTED ON SILICA-ALUMINA MATRIX BY SOL-GEL

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APA: Copy

OBEIDAVI, A., & SANJABI, S.. (2015). TO STUDY THE EFFECT OF MOLAR RATIO OF AL: MG ON THE STRUCTURAL PROPERTIES OF NIO/ A1203-MGO NANOCATALYSTS SYNTHESIS VIA MODIFIED SOL-GEL. JOURNAL OF NEW MATERIALS, 5(4 (20)), 141-151. SID. https://sid.ir/paper/170014/en

Vancouver: Copy

OBEIDAVI A., SANJABI S.. TO STUDY THE EFFECT OF MOLAR RATIO OF AL: MG ON THE STRUCTURAL PROPERTIES OF NIO/ A1203-MGO NANOCATALYSTS SYNTHESIS VIA MODIFIED SOL-GEL. JOURNAL OF NEW MATERIALS[Internet]. 2015;5(4 (20)):141-151. Available from: https://sid.ir/paper/170014/en

IEEE: Copy

A. OBEIDAVI, and S. SANJABI, “TO STUDY THE EFFECT OF MOLAR RATIO OF AL: MG ON THE STRUCTURAL PROPERTIES OF NIO/ A1203-MGO NANOCATALYSTS SYNTHESIS VIA MODIFIED SOL-GEL,” JOURNAL OF NEW MATERIALS, vol. 5, no. 4 (20), pp. 141–151, 2015, [Online]. Available: https://sid.ir/paper/170014/en

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