Starting from a compound consisting of copper-based metal-organic frameworks host and molybdenum-based polyoxometalates guest, mesoporous molybdenum carbide nano-octahedrons composed of ultrafine ...

The lightweight fabric is 3D-printed from nylon plastic polymers and comprises hollow octahedrons (a shape with eight equal triangular faces) that interlock with each other. When encased in a ...

In nickel molybdate (Ni 2 Mo 3 O 8), nickel ions (Ni 2+) form a triangular array of tetrahedrons and octahedrons. Each Ni 2+ ion has a magnetic spin (akin to a compass needle). Spins in the ...