The effect of hydrogen stoichiometry on palladium strain and resistivity

Atomistic understanding of hydrogen loading phenomenon into palladium cathode: A simple nanocluster approach and electrochemical evidence

“…The other interesting result deducing from figure 11 is the transient halt detected at the initial stages of the unloading process. It is related to an isobar phase transition (β → α 35,36 ) phenomenon taken place for PdH x matrix, during the unloading process. 37 The halt recognized here is indeed similar to that witnessed elsewhere, by means of cooling-curve diagrams.…”

Strain and resistivity of PdHx at hydrogen composition x>0.8

“…In the previous paper [2], the effect of hydrogen content on the strain and on the electrical resistivity of a Pd sample stressed by a constant tension has been investigated in a series of hydrogenation cycles and in a continuous range of H stoichiometry [0 ≤ x ≤ 0.8]. A strain of only 1% from pure Pd to PdH 0.8 due to the isotropic lattice expansion has been reported for both "as drawn" and "annealed" Pd sample, in disagreement with literature data available.…”

“…The Pd wire is maintained in a vertical position by a constant mechanical tension applied. The set-up and the electrolytic cell used in this work have been described elsewhere [1,2] …”

Monitoring of hydrogen absorption/desorption into pressed cobalt powder using resistometry

“…Resistometry is also used to evaluate the hydrogen content in Pd as resistivity is dependent on the atomic ratio, H/Pd. Conclusion on the electrical resistance of PdH x versus composition x and correlated physical phenomena have been done [43][44][45][46][47][48][49]. The resistivity of Ti has also been reported to change with hydrogen content [50][51][52][53].…”