Extended Data Fig. 6: In situ XRD experiments for a vacuum cycle.
From: Electrochemical loading enhances deuterium fusion rates in a metal target
a, 3D perspective view of XRD patterns of a Pd target as a function of outgassing time. The Pd target was first electrochemically loaded with hydrogen sourced from water electrolysis in 2 M K2CO3 in H2O at a constant current of 200 mA for 60 min and then kept at its open-circuit potential for 18 h. Throughout this duration, XRD measurements were conducted repeatedly for 2θ = 35–50° at a scan rate of 5° min−1. The cell was left under a vacuum of 1.2 × 10−2 torr. b, H/Pd ratio calculated from the lattice constant of the β-Pd(111) peak27 as a function of time for the initial 60 min of the outgassing cycle.
