Carbon Nanotubes: Controllable and Predictable Viscoelastic Behavior of 3D Boron‐Doped Multiwalled Carbon Nanotube Sponges (Part. Part. Syst. Charact. 1/2016)

3D boron-doped multiwalled carbon nanotube (CBxMWNT) sponges are synthesized with covalent junctions by X. L. Lu, J. Suhr, and co-workers as described on page 21. The boron atoms that are introduced in the hexagonal sp2 carbon lattice permanently change the morphology of the nanotubes by inducing elbow-like junctions that lead to the formation of a 3D solid. Measurements of the mechanical properties of the CBxMWNT sponges demonstrate that the elbow-like structures can endow these solids with improved resilience ability and density-dependent viscoelastic properties.