Reduced to Hierarchy: Carbon Filament-Supported Mixed Metal Oxide Nanoparticles

We describe a one-pot synthesis method for carbon filament-supported mixed metal oxide nanoparticles. The thermal intracrystalline reaction of adamantanecarboxylate ions confined inside interlayer galleries of layered double hydroxide materials under a reducing atmosphere (H-2) leads to carbon filaments forming in situ within the material. Raman spectroscopy and combined microscopy techniques show the formation of hybrid organic-inorganic carbon filaments with the mixed metal oxide particles interleaved.