1,3,6,8-Pyrenetetrasulfonic acid anchored doping to prepare
The capacitance retention rate of the composite electrode with 1,3,6,8-Psas as the anchor doping agent is 70.12% after 1000 cycles, while the capacitance retention rate of the PANI-WO 3 /FTO electrode with 1000 cycles is only 43.34%, which indicates that the anchoring effect of 1,3,6,8-Psas can support the linking of PANI and prevent the impact
Studies on the Effect of Doping Agent on the Structure
Studies on the Effect of Doping Agent on the Structure of Polyaniline March 2016 Authors: Omar Melad Mariam Jarur Abstract Polyaniline (PANI) doped with hydrochloric acid (HCl),...
Enhancement of electrical properties of metal doped
The test results also showed that the samples prepared with doping after polymerization exhibited higher electrical conductivity compared to that of the samples doped during polymerization.CuCl 2 was found to be the best dopant materials for the PANI on the basis of electrical conductivity.
Acid Doping of Polyaniline: Spectroscopic and Electrochemical
A detailed investigation of the acid doping behavior of polyaniline has led to a robust and reproducible procedure for controlled adjustment of the redox state of dry polyaniline films. The initial step in this procedure is the casting of PANI films from formic acid.
STUDIES ON THE EFFECT OF DOPING AGENT ON THE STRUCTURE
Studies on the Effect of Doping Agent on the Structure of Polyaniline 43 Fig. 2. FTIR spectra of PANI doped with HCl (A), H2SO4 (B) and HCOOH (C) 3.2. UV-Visible The UV-vis spectra of the soluble parts in DMSO of PANI synthesized with the use of K2Cr2O7 as an oxidant in different dopants (HCl, H2SO4 and HCOOH) respectively are shown in Fig. 3.
- Can acid doping be controlled in polyaniline films?
- A detailed investigation of the acid doping behavior of polyaniline has led to a robust and reproducible procedure for controlled adjustment of the redox state of dry polyaniline films. The initial...
- Does polyaniline dopant affect the electroconductivity of composites?
- The impact of the PANI content on the electroconductivity of composites is less significant than the influence of the dopant type on the material properties. The highest conductivity (2.8 * 10 −2 S/cm) was exhibited by composites based on polyaniline doped with sulfuric acid.
- How are polyanilines synthesized?
- Polyanilines were synthesized via oxidative polymerization in water with ammonium persulfate as the oxidant in a solution of hydrochloric acid (A), acetic acid (B) or sulfuric acid (C). The amounts of reagents in each synthesis are presented in Table 1. The reactions were conducted at room temperature (20 °C).
- Does redox state correlate with p Ka of a dopant acid?
- The redox state of PANI doped with homologous series of chloroacetic and carboxylic acids correlates with the p Ka of the dopant acid. These results show that it is possible to prepare the polymer with a desired oxidation state according to the p Ka of the dopant acid of a given homologous series.
- Is relaxation linked to residual content of water in polyaniline films?
- The β relaxation of polyaniline films in NMP (5 Hz) was also observed, in the region of − 80 to − 60°C 49. These studies have shown that β relaxation is linked to the residual content of water in the films due to water molecules that are hydrogen bonded to the polymeric chain.
- How do protons and anions affect redox properties of Pani polymers?
- The voltammetric and the spectroscopic behavior of the PANI doped with different anions indicate that both the protons and the anions of dopant acids influence the structure and redox properties of the polymer. The redox state of PANI doped with homologous series of chloroacetic and carboxylic acids correlates with the p Ka of the dopant acid.
