Electrochemical study of hydrogen diffusion in yttrium hydride switchable mirrors
作者： M. Di Vece , J.J. Kelly
DOI: 10.1016/S0925-8388(02)01225-2
关键词:
摘要: Potential-step experiments on yttrium thin films show exponential decay of the current as a function time. A diffusion model for thin-layer system relates time constants to effective coefficients hydrogen in di- and trihydride concentration range. The coefficient is found be concentration-dependent. From temperature dependence optical switching time, activation energies are calculated. good agreement with literature values supports diffusion-limited kinetics switching.
narcis.nl
elsevier.com参考文章(12)
John Crank, The mathematics of diffusion ,(1956)
F. J. A. den Broeder, S. J. van der Molen, M. Kremers, J. N. Huiberts, D. G. Nagengast, A. T. M. van Gogh, W. H. Huisman, N. J. Koeman, B. Dam, J. H. Rector, S. Plota, M. Haaksma, R. M. N. Hanzen, R. M. Jungblut, P. A. Duine, R. Griessen, Visualization of hydrogen migration in solids using switchable mirrors Nature. ,vol. 394, pp. 656- 658 ,(1998) , 10.1038/29250
P. van der Sluis, V.M.M. Mercier, Solid state Gd-Mg electrochromic devices with ZrO2Hx electrolyte Electrochimica Acta. ,vol. 46, pp. 2167- 2171 ,(2001) , 10.1016/S0013-4686(01)00375-9
G. Majer, U. Kaess, R. G. Barnes, Model-Independent Measurements of Hydrogen Diffusivity in the Lanthanum Dihydride-Trihydride System Physical Review Letters. ,vol. 83, pp. 340- 343 ,(1999) , 10.1103/PHYSREVLETT.83.340
R Griessen, JN Huiberts, M Kremers, ATM Van Gogh, NJ Koeman, JP Dekker, PHL Notten, Yttrium and lanthanum hydride films with switchable optical properties Nature. ,vol. 380, pp. 231- 234 ,(1996) , 10.1038/380231A0
Yang Li, Yang-Tse Cheng, Hydrogen diffusion and solubility in palladium thin films International Journal of Hydrogen Energy. ,vol. 21, pp. 281- 291 ,(1996) , 10.1016/0360-3199(95)00094-1
C. John Wen, B. A. Boukamp, R. A. Huggins, W. Weppner, Thermodynamic and Mass Transport Properties of “ LiAl ” Journal of The Electrochemical Society. ,vol. 126, pp. 2258- 2266 ,(1979) , 10.1149/1.2128939
G Majer, J Gottwald, D.T Peterson, R.G Barnes, Model-independent measurements of hydrogen diffusivity in the yttrium dihydrides Journal of Alloys and Compounds. ,vol. 330, pp. 438- 442 ,(2002) , 10.1016/S0925-8388(01)01452-9
S. J. van der Molen, J. W. J. Kerssemakers, J. H. Rector, N. J. Koeman, B. Dam, R. Griessen, Hydriding kinetics of Pd capped YHx switchable mirrors Journal of Applied Physics. ,vol. 86, pp. 6107- 6119 ,(1999) , 10.1063/1.371660
A. T. M. van Gogh, D. G. Nagengast, E. S. Kooij, N. J. Koeman, J. H. Rector, R. Griessen, C. F. J. Flipse, R. J. J. G. A. M. Smeets, Structural, electrical, and optical properties ofLa1−zYzHxswitchable mirrors Physical Review B. ,vol. 63, pp. 195105- ,(2001) , 10.1103/PHYSREVB.63.195105