کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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236951 | 465689 | 2012 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Preparation of Ag nanoparticle loaded mesoporous γ-alumina catalyst and its catalytic activity for reduction of 4-nitrophenol Preparation of Ag nanoparticle loaded mesoporous γ-alumina catalyst and its catalytic activity for reduction of 4-nitrophenol](/preview/png/236951.png)
In this paper, we report a simple chemical reduction method for synthesis of spherical Ag nanoparticles (average size ~ 7 nm) within mesoporous alumina matrix. Shape and size of the Ag nanoparticles and structure of the catalysts are investigated by using high resolution transmission electron microscopy, diffuse reflectance spectroscopy, N2 adsorption-desorption analysis, XRD and particle size analysis. The synthesized catalysts possess BET surface area of 281.6 m2/g and average pore size 6.38 nm. The synthesized Ag nanoparticle loaded mesoporous aluminas exhibit catalytic activity for the reduction of 4-nitrophenol to 4-aminophenol.
A simple chemical method has been reported for the synthesis of spherical Ag nanoparticles within mesoporous alumina matrix. The synthesized catalysts possess high surface area of 281.6 m2/g and average pore size 6.38 nm. The catalysts were acted as an efficient catalyst for the reduction of 4-nitrophenol to 4-aminophenol.Figure optionsDownload as PowerPoint slideHighlights
► Novel method to prepare Ag nanoparticle supported heterogeneous catalyst.
► Preparation of spherical Ag nanoparticles within mesoporous γ-alumina.
► Efficient catalytic hydrogenation reaction of 4-nitrophenol to 4-amiophenol.
Journal: Powder Technology - Volume 232, December 2012, Pages 1–6