Extended Data Fig. 10: Evolution of hcp PdHx nanoparticles in the early growth stage and multistep crystallization process.
From: Metastable hexagonal close-packed palladium hydride in liquid cell TEM
a–d, Snapshots and corresponding FFTs from Supplementary Video 1 and 2 showing the early stages of the growth of particles 1 (a) and 2 (c) in Fig. 1a–d, along with b and d, their respective size evolutions. e, Snapshots and corresponding FFTs from Supplementary Video 4 showing the growth of another hcp PdHx particle formed under the same conditions as those of particles 1 and 2. f, Size evolution of the particle in e. g, Plot of interplanar distances of five low-index planes of the particle in e as a function of time. The zone axis patterns show that the particle had a hcp structure immediately after coalescence, that is, within approximately one second of nucleation at most. All images were obtained in situ. Scale bar, 2 nm. ZA, zone axis.
