Information obtained from two amperometric sensors and from a potentiometric sensor for monitoring hydrogen (H) in steel in contact with corrosive solutions saturated with hydrogen sulfide (H2S) at ambient temperature was compared. The apparent diffusion coefficient (D(app)) for H in the steel as determined by experiments using the amperometric sensors was shown to be independent of H concentration in steel (c(H)). Experiments with the potentiometric sensor indicated D(app) values increased with increasing c(H). The calculated H concentration at the surface of the steel in contact with the corrosive medium (c(Hi)), as obtained from the two amperometric sensors, showed poor agreement. The equivalent pressure of H in the steel (p(H2eq)), as calculated from the voltage measurement of the potentiometric sensor, was strongly dependent on pH of the corrosive solution.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Electrochemical sensors for monitoring hydrogen in steel


    Weitere Titelangaben:

    Elektrochemische Sensoren zur Registrierung von Wasserstoff in Stahl


    Beteiligte:
    Morris, D.R. (Autor:in) / Sastri, V.S. (Autor:in) / Elboujdani, M. (Autor:in) / Revie, R.W. (Autor:in)

    Erschienen in:

    Corrosion, Houston ; 50 , 8 ; 641-647


    Erscheinungsdatum :

    1994


    Format / Umfang :

    7 Seiten, 6 Bilder, 4 Tabellen, 17 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch






    Wearable electrochemical sensors for the monitoring and screening of drugs

    Teymourian, Hazhir / Parrilla Pons, Marc / Sempionatto, Juliane R. et al. | BASE | 2020

    Freier Zugriff

    Chemochromic Hydrogen Sensors

    Wiggins, Bryan C. | NTRS | 2007


    Chemochromic Hydrogen Sensors

    B. C. Wiggins | NTIS | 2007