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Polyelectrolyte encapsulated gold nanoparticles as efficient active catalyst for reduction of nitro compounds by kinetic method

Paper ID Volume ID Publish Year Pages File Format Full-Text
40662 45861 2012 9 PDF Available
Title
Polyelectrolyte encapsulated gold nanoparticles as efficient active catalyst for reduction of nitro compounds by kinetic method
Abstract

This paper is focused on the synthesis of gold nanoparticles (AuNPs) using highly branched polyethylenimine (PEI) and acylated polyethylenimine (PEI-C12) as reducing as well as stabilizing agent and their role as catalysts. The AuNPs are characterized by XRD, TEM, HRTEM, AFM, UV–vis and FT-IR techniques. The AuNPs, in a PEI polyelectrolyte matrix, is found to be a stable and active catalyst for the selective reduction of nitro compounds using NaBH4 under mild reaction conditions. This catalytic system is stable for several months without any obvious colloidal aggregation.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (127 K)Download as PowerPoint slideHighlights► We have developed an environmentally benign AuNPs for the reduction of nitro group to corresponding amines. ► The advantages of this catalytic system give high product yields, short reaction time as well as improved catalytic activity. ► A new application of AuNPs in organic synthesis has been found to transformation under “green” conditions. ► Polyelectrolyte capped AuNPs is effective and stable catalytic system. ► It is a simple, convenient and novel method for the reduction of aromatic nitro groups.

Keywords
AuNPs; Polyethylenimine; Nitrophenol; NaBH4; Reduction
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Polyelectrolyte encapsulated gold nanoparticles as efficient active catalyst for reduction of nitro compounds by kinetic method
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volumes 439–440, 10 October 2012, Pages 197–205
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us