Diffusion of hydrogen isotopes in the monohydride phase of Ti1−zVzHxDy studied by 1H and 2H NMR spin–lattice relaxation times Original Research Article

The 1H and 2H spin–lattice relaxation times in the monohydride phase of the V–H–D and Ti0.1V0.9–H–D systems have been re-analyzed by Bloembergen–Purcell–Pound (BPP) equations with a log-normal distribution of correlation times, and the obtained parameters have been compared with those of the Ti0.33V0.67–H–D system. The mean activation energy and the magnitude of the distribution of H and D diffusions are discussed in relation to the metal compositions, the hydrogen site, the crystal structure and the [H]/[D] ratios.