Constructing magnetic polyaniline/metal hybrid nanostructures using polyaniline/Fe{sub 3}O{sub 4} composite hollow spheres as supports

Journal Article · Sat Aug 15 00:00:00 EDT 2009 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2009.05.021· OSTI ID:21370524

Lirong, Kong; Xiaofeng, Lu; Jin, E; Shan, Jiang; Xiujie, Bian ^[1]

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1. Alan G. MacDiarmid Institute, Jilin University, Changchun 130012 (China)

Polyaniline (PANI)/Fe{sub 3}O{sub 4} composite hollow spheres have been successfully synthesized in one step using sulfonated polystyrene (PS) spheres as templates. The magnetic PANI hollow spheres were used as supports for noble metal nanoparticles (NPs) such as Au and Pd. The morphology, composition and magnetic properties of the resulting products were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, inductively coupled plasma (ICP) atomic spectra and vibrating sample magnetometer. The catalytic activity of magnetic PANI/Au composite shells on the oxidation of dopamine was investigated by cyclic voltammetry. The obtained results provide our product with a practical application for the detection of dopamine. On the other hand, the catalytic activity of magnetic PANI/Pd composite shells on the reduction of 4-nitroaniline was investigated by spectroscopic methods and compared with Pd/C catalyst which was already widely used in industrial production. - Graphical abstract: TEM image of PANI/Fe{sub 3}O{sub 4} hollow spheres which can be used as supports for a variety of catalysts such as noble metal nanoparticles. Based on the unique properties of polyaniline hollow spheres and Fe{sub 3}O{sub 4} NPs, we designed the synthesis of polyaniline/Fe{sub 3}O{sub 4} NPs composite hollow spheres as supports for catalysts such as noble metal NPs. As a result, the obtained composites exhibit enhanced catalytic activities and can be easily separated from reaction mixture by using an NdFeB permanent magnet.

• OSTI ID: 21370524
• Journal Information: Journal of Solid State Chemistry, Vol. 182, Issue 8; Other Information: DOI: 10.1016/j.jssc.2009.05.021; PII: S0022-4596(09)00230-8; Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; ISSN 0022-4596
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
DOPAMINE
INFRARED SPECTRA
IRON OXIDES
MAGNETIC PROPERTIES
METALS
MORPHOLOGY
NANOSTRUCTURES
POLYSTYRENE
SCANNING ELECTRON MICROSCOPY
SPHERES
TRANSMISSION ELECTRON MICROSCOPY
X-RAY DIFFRACTION
AMINES
AROMATICS
AUTONOMIC NERVOUS SYSTEM AGENTS
CARDIOTONICS
CARDIOVASCULAR AGENTS
CHALCOGENIDES
COHERENT SCATTERING
DIFFRACTION
DRUGS
ELECTRON MICROSCOPY
ELEMENTS
HYDROXY COMPOUNDS
IRON COMPOUNDS
MATERIALS
MICROSCOPY
NEUROREGULATORS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXIDES
OXYGEN COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
PHENOLS
PHYSICAL PROPERTIES
PLASTICS
POLYMERS
POLYOLEFINS
POLYPHENOLS
POLYVINYLS
SCATTERING
SPECTRA
SYMPATHOMIMETICS
SYNTHETIC MATERIALS
TRANSITION ELEMENT COMPOUNDS