نتایج جستجو برای: polyaniline cobaltsulphate

تعداد نتایج: 2969  

Journal: :Chemical communications 2009
Hua Bai Yuxi Xu Lu Zhao Chun Li Gaoquan Shi

Graphene sheets were stably dispersed in water by functionalization with sulfonated polyaniline (SPANI), and the composite film of SPANI-functionalized graphene showed improved electrochemical stability and enhanced electrocatalytic activity.

0. Moradi A. Nozad Golikand K. M. Taghi-Ganji M. Ghannadi Maragheh4 M. Yari Sedaghat Sharehjini

A new method for the synthesis of water soluble Polyaniline (PANi) using Hemin Chloride (H.C) in the presence of hydrogen peroxide (H.P) is presented. Hemin chloride is an effective catalyst for the oxidative polymerization of aniline in the presence of hydrogen peroxide at room temperature. The UV- Vis absorption spectra of the product show a distinct absorption peak at 430 nm in pH 4.0 b...

Journal: :journal of physical & theoretical chemistry 2006
sedaghat sharehjini a. nozad golikand m. ghannadi maragheh4 k. m. taghi-ganji m. yari

a new method for the synthesis of water soluble polyaniline (pani) using hemin chloride (h.c) in the presence of hydrogen peroxide (h.p) is presented. hemin chloride is an effective catalyst for the oxidative polymerization of aniline in the presence of hydrogen peroxide at room temperature. the uv- vis absorption spectra of the product show a distinct absorption peak at 430 nm in ph 4.0 b...

Journal: :journal of physical & theoretical chemistry 2009
m. banimahd keivani k. zare h. aghaie r. ansari

this paper deals with application of polyaniline coated on wood sawdust for removal ofmethylene blue (mb) dye from aqueous solutions. polyaniline coated onto sawdust (termedas pan/sd) was prepared via direct chemical polymerization onto sawdust which waspreviously soaked in the monomer (aniline) solution in acidic (hc1) media. adsorptionexperiments were carried out using batch system. the effec...

2018
Lu Tong Xiao-Xiong Wang Xiao-Xiao He Guang-Di Nie Jun Zhang Bin Zhang Wen-Zhe Guo Yun-Ze Long

Highly stretchable and electrically conductive thermoplastic polyurethane (TPU) nanofibrous composite based on electrospinning for flexible strain sensor and stretchable conductor has been fabricated via in situ polymerization of polyaniline (PANI) on TPU nanofibrous membrane. The PANI/TPU membrane-based sensor could detect a strain from 0 to 160% with fast response and excellent stability. Mea...

Journal: :Chemical communications 2011
Sergio H Domingues Rodrigo V Salvatierra Marcela M Oliveira Aldo J G Zarbin

This communication reports a simple, one-pot procedure for the synthesis and processing of transparent and conductive thin films of graphene/polyaniline nanocomposites based on an interfacial polymerization. Thin films presenting transmittance of 89% and sheet resistance of 60.6 Ω sq(-1) are spontaneously obtained and can be easily transferred to suitable substrates.

Journal: :Physical chemistry chemical physics : PCCP 2013
Mosarrat Perween Rajeev Gupta Babulal Rebary Vaibhav Kulshrestha Divesh N Srivastava

A simple and effective method for the management of the passive layer in solid state batteries is reported. The success is achieved using a composite cathode with embedded channels of polyaniline allowing smooth charge transfer across the passive layer. The composite cathode manifested better performance in terms of the cell characteristics and shelf life.

2016
Václav Bajgar Marek Penhaker Lenka Martinková Andrej Pavlovic Patrycja Bober Miroslava Trchová Jaroslav Stejskal

The paper describes the electrical plant response to mechanical stimulation monitored with the help of conducting polymers deposited on cotton fabric. Cotton fabric was coated with conducting polymers, polyaniline or polypyrrole, in situ during the oxidation of respective monomers in aqueous medium. Thus, modified fabrics were again coated with polypyrrole or polyaniline, respectively, in order...

2015
Gautam Das Hyon Hee Yoon

An electrochemical biosensor based on sulfonated graphene/polyaniline nanocomposite was developed for urea analysis. Oxidative polymerization of aniline in the presence of sulfonated graphene oxide was carried out by electrochemical methods in an aqueous environment. The structural properties of the nanocomposite were characterized by Fourier-transform infrared, Raman spectroscopy, X-ray photoe...

2014
Grzegorz Kowalski Jan Pielichowski Mirosław Grzesik

A study of polyaniline (PANI) doping with various cobalt compounds, that is, cobalt(II) chloride, cobalt(II) acetate, and cobalt(II) salen, is presented. The catalysts were prepared by depositing cobalt compounds onto the polymer surface. PANI powders containing cobalt ions were obtained by one- or two-step method suspending PANI in the following acetonitrile/acetic acid solution or acetonitril...

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