Serial Ionic Exchange for the Synthesis of Multishelled Copper Sulfide Hollow Spheres

Transformation in a shell: Ion exchange is used for the fabrication of multishelled inorganic hollow materials. The transformation of solid Cu2O to Cu2S hollow spheres is investigated as a model reaction (see picture; PVP=poly(vinylpyrrolidone)). Detailed facts of importance to specialist readers are published as "Supporting Information". Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.