The CVDs of gaseous unsaturated carbon sources with C≡C triple bonds, such as acetylene, and C=C double bonds, such as propylene, have been investigated to prepare templated carbons. The resultant periodically arranged microstructured carbon cages enable efficient diffusion of gases and electrolytes. Typically incompatible high surface area, fast diffusion of gases and electrolytes, electrical conductivity, and structural flexibility are realized using the templated method. However, control of uniform single-layer graphene growth is difficult, with significant amounts of fragile oxygen-rich edge sites being formed to reduce the chemical and electrochemical stability of the obtained carbon materials.