TSA(toluene-p-sulfonic acid) doped polyaniline was prepared potentiostatically(0 5 V vs.SCE) on Pt electrode in an electrolyte solution containing 0 3 mol/L An and 0 45 mol/L TSA and investigated by cyclic voltammetry...TSA(toluene-p-sulfonic acid) doped polyaniline was prepared potentiostatically(0 5 V vs.SCE) on Pt electrode in an electrolyte solution containing 0 3 mol/L An and 0 45 mol/L TSA and investigated by cyclic voltammetry, thermal stability and solubility experimentats. The results show that the TSA doped PAn has a good redox reversibility in H 2SO 4 medium with temperature of thermal decomposition being 248 5 ℃ and soluble in NMP, DMF and DMSO.展开更多
Polyaniline film electrode was prepared by constant potential electrolysis. Effects of sweep rate, monomer concentration and temperature on its electrocatalytic performance for polymerization of aniline monomer were s...Polyaniline film electrode was prepared by constant potential electrolysis. Effects of sweep rate, monomer concentration and temperature on its electrocatalytic performance for polymerization of aniline monomer were studied. Compared with the blank platinum electrode, the potential of the oxidation polymerization of aniline monomer on the polyaniline film electrode shifted negatively. It is showed that the polyaniline film has obvious catalytic action in the polymerization. In addition, the redox peak current on polyaniline film electrode linearly depends on the square root of the potential sweep rate. It is indicated that the electrode reaction on polyaniline film is controlled by diffusion process.展开更多
文摘TSA(toluene-p-sulfonic acid) doped polyaniline was prepared potentiostatically(0 5 V vs.SCE) on Pt electrode in an electrolyte solution containing 0 3 mol/L An and 0 45 mol/L TSA and investigated by cyclic voltammetry, thermal stability and solubility experimentats. The results show that the TSA doped PAn has a good redox reversibility in H 2SO 4 medium with temperature of thermal decomposition being 248 5 ℃ and soluble in NMP, DMF and DMSO.
文摘Polyaniline film electrode was prepared by constant potential electrolysis. Effects of sweep rate, monomer concentration and temperature on its electrocatalytic performance for polymerization of aniline monomer were studied. Compared with the blank platinum electrode, the potential of the oxidation polymerization of aniline monomer on the polyaniline film electrode shifted negatively. It is showed that the polyaniline film has obvious catalytic action in the polymerization. In addition, the redox peak current on polyaniline film electrode linearly depends on the square root of the potential sweep rate. It is indicated that the electrode reaction on polyaniline film is controlled by diffusion process.
