Fig. 3
From: X-ray near-field multi-slice ptychography for in-situ imaging
In-situ near-field multislicing ptychography of cuprous oxide nanocubes undergoing a galvanic replacement reaction. (a) Schematic of the galvanic replacement reaction. Gold particles form on the surface of the cuprous oxide cubes, \(\hbox {Cu}^{2+}\) dissolves over the course of the reaction and hollow gold nanocages form (adapted from39). (b) Schematic of the reaction container. A polyimide foil with pre-synthesized cuprous oxide and a clean foil encapsulate the reaction solution with the gold precursor. (c)–(h) In-situ galvanic replacement reaction over 4.2 h. Multi-slice near-field reconstructions of the upstream window (phase shift).
