Galvanostatic hydrogen loading

Eig. 40. Development of electrode potential E and in situ measured optical transmittance as a function of time for 55 nm Sm film (working electrode) covered Pd overlayer of thickness (i) 5 nm, (ii) 8 nm, and (iii) 11 nm, during galvanostatic hydrogen loading and unloading at current density 3.057 mA/cm in 1 M KOH (Kumar and... 

Fig. 10. Optical transmittance (i) and reflectance (ii) spectra of a Pd (15 nm) capped Y (300) film as a function of hydrogen concentration during the second galvanostatic loading from the dihydride to trihydride. The corresponding contours are plotted in the lower part of the graphs (Kooij et al., 1999).

Fig. 36 shows the time evolution of the electrode potential and transmittance during the initial galvanostatic loading of a Pd (15 nm) capped Sm (67 nm) film hydrogenated via electrochemical loading in 5 M NaOH (von Rottkay et al., 1999a). Two plateaus were observed, one at —690 mV and another one at —820 mV, after which the potential was observed to drop... 

Fig. 88. (i) Optical transmittance at 1.96 eV (solid lines obtained using continuous galvanostatic loading and open circles obtained from GIFT) and (ii) resistivity (obtained from GIFT measurements and corrected for Pd over layer) as a function of hydrogen concentration in Pd (15 nm) capped Y (300 nm) films, (iii) Pressure composition isotherms obtained from GIFF for the same film (Kooij et al., 2000). 

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