Electrochemical polymerization of aniline inside ordered macroporous carbonElectronic supplementary information (ESI) available: Cyclic voltammograms of the 677 nm macroporous carbon and the corresponding composite, infrared spectrum of PANI, SEM images of 490 nm and high magnification SEM images of 677 nm composite materials. See http://www.rsc.org/suppdata/cc/b1/b111727k/