Synthesis and properties on polyaniline in the presence of nickel chloride

Abstract

Abstract. Both Conducting and Ferromagnetic polyaniline containing nickel (abbreviated as PANI-Ni) is synthesized in a solution containing aniline, HCl and NiCl2, using peroxydisulphate as an oxidant and horseradish peroxidase as a catalyst. The conductivity of PANI-Ni is about 10 -1 S cm -1 . The result of electron paramagnetic resonance (EPR) spectra indicated that there were unpaired electrons in PANI-Ni, and the spin density of the PANI-Ni was 1.09·10 19 spins g -1 . The plot of magnetization (M) against the magnetic field (H) indicated that the PANI-Ni was soft ferromagnetic at about 300 K, the saturation magnetization (Ms) and the coercive force (Hc) of which were 4.5 emu g -1 (electromagnetic unit per gram) and about 55 Oe, respectively. UV-Visible (UV-vis) and Fourier Transform Infrared (FTIR) spectra showed that there was strong interaction between Ni 2+ and PANI chains, but the backbone chains of PANI-Ni were hardly changed compared with PANI. Cyclic voltammogram results indicated that the PANI-Ni film was of excellent electrochemical activity.

Growth of polyaniline nanofibers for supercapacitor applications using successive ionic layer adsorption and reaction (SILAR) method

“…The peak at 1300 cm −1 (v 4 ) is the C−N stretching peak of the secondary aromatic amine [29,30]. The strong peak at 1117 cm −1 (v 5 ) is the stretching mode of N=Q=N, which considered to be a measure of the degree of electron delocalization.…”

Microwave assisted chemical bath deposited polyaniline films for supercapacitor application

“…The peak at 1458 cm −1 is attributed to the C C stretching of benzenoid rings. The peaks at 1105, 793 and 608 cm −1 are attributed to bands characteristics of B-NH-Q or B-NH-B bonds, and out of plane bending vibration of C-H of benzene rings, respectively (where B refers to the benzenictype rings and Q refers to the quinonic-type rings), which confirms the formation of the PANI over substrate [27][28][29][30].…”

Conducting polyaniline nanorods doped with aromatic carboxyl chain end functionalized polystyrene

“…PANI with well-defined micro-and nanomorphology, such as nanofibres, nanotubes and hollow microspheres, has potential applications for use as chemical sensors [6,7], organic optoelectronic displays [8,9], drug delivery systems [10], ionomers in fuel cells [11] and nanodevices in the nanotechnology industry [12][13][14]. The most efficient method for the preparation of polyaniline involves the chemical oxidative polymerization of aniline using different inorganic compounds as oxidants in the presence of inorganic and organic acids as dopants [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29]. In addition, the morphology of each PANI derivative is dependent on the nature of the chemical oxidant and the dopant used in the chemical oxidative polymerization process for the preparation of a specific PANI derivative [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29] [15][16][17][18][19]…”