B. Baranowski, a, and L. Dębowskaa aInstitute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland Received 2 June 2006; revised 18 July 2006; accepted 19 July 2006. Available online 1 September 2006.
This is a discussion of three articles by Tripodi et al. [P. Tripodi, M.C.H. McKubre, F.L. Tanzella, P.A. Honnor, D.Di Gioacchino, F. Celani, V. Violante, Phys. Lett. A 276 (2000) 122; P. Tripodi, D.Di. Gioacchino, R. Borelli, J.D. Vinko, Physica C 388–389 (2003) 571; P. Tripodi, D.Di. Gioacchino, J.D. Vinko, Physica C 408–410 (2004) 350] on the possibility of high temperature superconducting phases in PdH. The experimental results as well as their interpretations are discussed. Critical remarks concerning the definition of superconductivity and the possibility of preparation of PdHx (for x 1) by electrochemical method are presented.