Showing papers by "Hiroshi Nishihara published in 1990"
TL;DR: In this paper, the corrosion inhibition mechanism of benzotriazole and 4-hydroxybenzotitriazole for copper in sulphate solutions was investigated by SERS spectroscopy and impedance measurements.
107 citations
TL;DR: In this article, the authors examined the adaption and orientation of pyridine, aniline, dimethyl-N, N-aniline and methyl-N pyridinium on an electrode d'argent modifiee par un depot de fer sont examinees par spectrometrie SERS.
Abstract: L'adsorption et l'orientation de la pyridine, de l'aniline, de la dimethyl-N, N-aniline et de l'ethyl-N pyridinium sur une electrode d'argent modifiee par un depot de fer sont examinees par spectrometrie SERS et par des courbes de polarisation
29 citations
TL;DR: Le taux de recouvrement et le rendement d'inhibition de composes organiques polaires adsorbes sur une electrode de fer en solution d'acide perchlorique sont determined en accord avec l'isotherme de Frumkin par des techniques d'impedance et de polarisation as discussed by the authors.
Abstract: Le taux de recouvrement et le rendement d'inhibition de composes organiques polaires adsorbes sur une electrode de fer en solution d'acide perchlorique sont determines en accord avec l'isotherme de Frumkin par des techniques d'impedance et de polarisation
23 citations
Journal Article•
12 citations
TL;DR: In this paper, a cyclic sweeps of potential (COP) film was used to protect an iron rotating disk electrode from corrosion in an aerated 0.5 M Na 2 SO 4 solution.
8 citations
TL;DR: In this paper, the reduction of hexachlorobuta-1,3-diene in aprotic solvents affords mostly graphitized films which can be easily doped with anions and also with cations.
Abstract: Electrochemical reduction of hexachlorobuta-1,3-diene in aprotic solvents affords mostly graphitized films which can be easily doped with anions and also with cations.
4 citations
TL;DR: In this paper, the authors studied the corrosion inhibition behavior of benzyl thiocyanate at Fe, Ni, and Zn surfaces in sulfuric acid and found that the electrochemical polarization method was extremely high for Fe and Ni but modest for Zn.
Abstract: Reactions of benzyl thiocyanate at Fe, Ni, and Zn surfaces in sulfuric acid were studied in relation to the corrosion inhibition behavior of benzyl thiocyanate. Corrosion inhibition efficiency obtained by the electrochemical polarization method was extremely high for Fe and Ni but modest for Zn
2 citations
Patent•
09 Aug 1990
TL;DR: In this article, a photoresist layer is applied atop the film and a DC voltage is then impressed between the metallic film and the electrode by using a power source 6 and the prescribed region is irradiated with the light beam 7 (He-Cd laser light).
Abstract: PURPOSE:To continuously execute exposing and developing of a photosensitive material and etching of a metallic film in the same treating liquid by depositing the metallic film on a substrate, providing the coated film of the photosensitive material thereon, immersing this substrate into the treating liquid, impressing an electric field thereto and irradiating the surface of the coated film with a light beam. CONSTITUTION:The metallic film 3 (Al, etc.) having a prescribed thickness is deposited by thermal vapor deposition on the surface 2 of the substrate 1 (LiNbO3, etc.) and a photoresist layer 4 is applied atop the film. This substrate 1 is immersed together with a platinum electrode 5 into an aq. soln. of about 1% sodium hydroxide which has the development effect on the photoresist layer 4 and can remove the metallic film 3 by an electrodecomposition effect. A DC voltage is then impressed between the metallic film 3 and the electrode 5 by using a power source 6 and the prescribed region is irradiated with the light beam 7 (He-Cd laser light, etc.) condensed by an objective lens 8, by which the photoresist layer 4 is exposed and the metallic film 3 is successively removed in a very small area unit. The removal of the metallic film 3 in real time is attained in this way with high accuracy.
1 citations
TL;DR: In this paper, a two-step electropolymerization involving reduction of Fe(C5H4CH2Cl)2 catalyzed by a poly[Co(C 5CH4Cl=CHCHO)2]-/0 electrode film affords a cobaltocenium/ferrocene bilayer-like film.
Abstract: Two-step electropolymerization involving reduction of Fe(C5H4CH2Cl)2 catalyzed by a poly[Co(C5CH4Cl=CHCHO)2]+/0 electrode film affords a cobaltocenium/ferrocene bilayer-like film. A device fabricated by sandwiching this film between electrodes shows diode-like i-V characteristics under a dry nitrogen atmosphere.