Figure 1 (IMAGE) Science China Press Caption (a, e) Time-lapse sequence of TEM images showing the nucleation growth process of single layer Ni(OH)2 in the Pt3Ni-Ni(OH)2 core-shell structure extracted from movie. (b, f) Schematic illustrations of the growth process of Ni(OH)2 single layer in (a, e). The corresponding statistics of the length of growth layer in (a, e) as a function of time (c, g), and statistics of growth rate in (a, e) as a function of time (d, h), respectively. Credit ©Science China Press Usage Restrictions Use with credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.