Abstract
We investigate curvature-driven core-shell morphology that emerges when polycrystalline shells of ZIF-8 (zeolitic imidazolate framework coordination polymer) grow on colloid-sized particles. In early growth stages, the shell is continuous, but it transforms to yolk-shell, with neither sacrificial template nor core etching, because of geometrical frustration. A design rule is developed regarding how local surface curvature matters. Comparing shells grown on cubic, rod-like, and peanut-shaped hematite core particles, we validate the argument.
Original language | English (US) |
---|---|
Pages (from-to) | 13471-13473 |
Number of pages | 3 |
Journal | Journal of the American Chemical Society |
Volume | 136 |
Issue number | 39 |
DOIs | |
State | Published - Sep 22 2014 |
ASJC Scopus subject areas
- Catalysis
- General Chemistry
- Biochemistry
- Colloid and Surface Chemistry