Selectivity of Poly(aniline) Film-Coated Electrode for Redox Reactions of Species in Solution

Oyama, Noboru; Ohnuki, Yoshio; Chiba, Kazuyuki; Ohsaka, Takeo

doi:10.1246/cl.1983.1759

Cited by 103 publications

(47 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Magnetic susceptibility measurements on Pd, -xSmr solid solution alloys indicate that the effective valency of Sm is 3 when dissolved in Pd [7]. The magnetic susceptibility and Mossbauer isomer shift measurements on Pdl-,Eu, solid solution alloys indicate that Eu atoms are in the 3-valent state when in solution in Pd [S].…”

Section: Introductionmentioning

confidence: 99%

A Comparative Study of the Solubility and Thermodynamics of Hydrogen in Pd_1‐xRE_x (RE = Dy, Gd, Sm, and Y; x = 0.05 and 0.08) Solid Solution Alloys

Ramaprabhu¹,

Rajalakshmi²,

Weiß³

1989

Ber Bunsenges Phys Chem

View full text Add to dashboard Cite

Pressure‐composition‐temperature absorption isotherms have been determined for the Pd1‐xREx (RE = Dy, Gd, Sm, and Y; x = 0.05 and 0.08) solid solution face centered cubic alloys in the pressure and temperature ranges 2 ≦ P(H2)/mbar ≦ 1000 and 473 ≦ T/K ≦ 873 using the manometric method. The partial molar enthalpy of solution of hydrogen at infinite dilution (ΔH̄0H) becomes more exothermic with increasing content of RE. The partial molar excess entropy of hydrogen solution at infinite dilution (ΔS̄E.0H) decreases with xRE. A correlation of the atomic diameter (dRE) of the substituting rare‐earth metals when in solution in palladium with ΔH̄0H and with the metal‐hydrogen interaction shows that the increase in the exothermicity of the Pd1‐xREx solid solution alloys is due to the lattice expansion and an attractive metal‐hydrogen interaction. From the correlation of ΔH̄0H with dRE of Pd1‐xREx (x = 0.05 and 0.075), ΔH̄0H of Pd1‐xREx (RE = Yb, Ho, and Eu; x = 0.05 and 0.075) solid solution alloys have been predicted. The dependence of ΔH̄0H of the “expanded” and “contracted” Pd1‐xMx alloys on the size of the octahedral interstitial hole sites (rh) occupied by hydrogen atoms is discussed.

show abstract

Section: Introductionmentioning

confidence: 99%

A Comparative Study of the Solubility and Thermodynamics of Hydrogen in Pd_1‐xRE_x (RE = Dy, Gd, Sm, and Y; x = 0.05 and 0.08) Solid Solution Alloys

Ramaprabhu¹,

Rajalakshmi²,

Weiß³

1989

Ber Bunsenges Phys Chem

View full text Add to dashboard Cite

show abstract

“…On the other hand, a catalytic effect of polyaniline electrodes has been established for several species [18,19]. Since p-1-NAP possesses a chemical structure similar to polyaniline, we can infer that p-1-NAP also catalyzed some species in solution if the redox potential of a redox couple is within the range of the potential in which p-1-NAP film is electroactive itself.…”

Section: Introductionmentioning

confidence: 99%

Electrocatalytic Properties of a Novel Poly‐1‐Naphthylamine‐Modified Electrode Using Ascorbic Acid as Molecule Probe

2007

View full text Add to dashboard Cite

A glassy carbon electrode was modified with an electropolymerized film of 1-naphthylamine in aqueous solution. The electrocatalytic properties of this modified electrode (ME) were investigated using ascorbic acid (AA) as probe molecule. The electrochemical behavior of AA in buffer solution was examined by voltammetry and amperometry. The results showed that the ME exhibited good electrocatalytic activity towards the oxidation of AA, as a consequence, it can be used as amperometric sensor of this analyte in a flow injection system with good sensitivity. Calibration curves were linear over the concentration range 0.05 -1.50 mM with a phosphate buffer solution pH 3 as the carrier, the detection limit was 1 ppm (S/N ¼ 3). The methods were applied to the determination of AA in beverages and pharmaceutical products. A good correlation with a reference method was attained.

show abstract

“…2 Within this potential region, no redox reactions of dissolved inorganic species take place on the PANI film-modified electrode because PANI acts as an electric insulator. 3 Even within the potential region, however, the electro-oxidation of several dissolved hydroquinones obviously occurs even under the same conditions because the hydroquinones selectively permeate through the PANI film. 4 If the selective permeation is due to an affinity between PANI and the hydroquinones, there is a possibility that the affinity causes the enhancement of the electric conductivity of PANI as well as the concentration of the hydroquinones in PANI.…”

Section: Introductionmentioning

confidence: 99%

Reaction of Dissolved p-Dimethoxybenzene on a Polyaniline-Modified Electrode

Yano

2012

Electrochemistry

View full text Add to dashboard Cite

Polyaniline (PANI), acts as an electric insulator in the potential region greater than 0.7 V vs. Ag/AgCl. Even in the electroinactive potential region, the redox current of dissolved p-dimethoxybenzene was evident on a PANI filmmodified electrode because p-dimethoxybenzene selectively permeates through the PANI film to reach the electrode substrate. For the electro-oxidation of the dissolved p-dimethoxybenzene, analyses of the rotating disk electrode (RDE) voltammograms using a PANI-modified RDE and steady-state current-potential curves using a PANI pellet electrode revealed that p-dimethoxybenzene was concentrated in the PANI during the electro-oxidation. Furthermore, the concentration increased the electric conductivity of PANI.

show abstract

Selectivity of Poly(aniline) Film-Coated Electrode for Redox Reactions of Species in Solution

Abstract: The polymer films, prepared by the electrochemical polymerization of aniline and its derivatives, were electroactive in an acidic solution. Electrodes coated with these films were possessed of the selectivity for the redox reaction of species in solution.

Cited by 103 publications

References 9 publications

A Comparative Study of the Solubility and Thermodynamics of Hydrogen in Pd_1‐xRE_x (RE = Dy, Gd, Sm, and Y; x = 0.05 and 0.08) Solid Solution Alloys

A Comparative Study of the Solubility and Thermodynamics of Hydrogen in Pd_1‐xRE_x (RE = Dy, Gd, Sm, and Y; x = 0.05 and 0.08) Solid Solution Alloys

Electrocatalytic Properties of a Novel Poly‐1‐Naphthylamine‐Modified Electrode Using Ascorbic Acid as Molecule Probe

Reaction of Dissolved p-Dimethoxybenzene on a Polyaniline-Modified Electrode

Contact Info

Product

Resources

About

Selectivity of Poly(aniline) Film-Coated Electrode for Redox Reactions of Species in Solution

Abstract: The polymer films, prepared by the electrochemical polymerization of aniline and its derivatives, were electroactive in an acidic solution. Electrodes coated with these films were possessed of the selectivity for the redox reaction of species in solution.

Cited by 103 publications

References 9 publications

A Comparative Study of the Solubility and Thermodynamics of Hydrogen in Pd1‐xREx (RE = Dy, Gd, Sm, and Y; x = 0.05 and 0.08) Solid Solution Alloys

A Comparative Study of the Solubility and Thermodynamics of Hydrogen in Pd1‐xREx (RE = Dy, Gd, Sm, and Y; x = 0.05 and 0.08) Solid Solution Alloys

Electrocatalytic Properties of a Novel Poly‐1‐Naphthylamine‐Modified Electrode Using Ascorbic Acid as Molecule Probe

Reaction of Dissolved p-Dimethoxybenzene on a Polyaniline-Modified Electrode

Contact Info

Product

Resources

About

A Comparative Study of the Solubility and Thermodynamics of Hydrogen in Pd_1‐xRE_x (RE = Dy, Gd, Sm, and Y; x = 0.05 and 0.08) Solid Solution Alloys

A Comparative Study of the Solubility and Thermodynamics of Hydrogen in Pd_1‐xRE_x (RE = Dy, Gd, Sm, and Y; x = 0.05 and 0.08) Solid Solution Alloys