Figure 1: (a) Low angle X-ray diffractogram of mesoporous In2O3. Dotted line corresponds to KIT-6 silica. The replica clearly shares the same large-scale mesoporous structure with the silica template. (b) Wide angle XRD of KIT-6 In2O3. Main diffraction peaks of the cubic structure Ia-3 of In2O3 are clearly identified. (c) High-resolution Transmission Electron Microscopy and selected area diffraction pattern on the squared region of an In2O3 KIT-6 mesoporous replica. A sketch of the KIT-6 mesoporous structure is included for clarity (reprinted with permission from [14] Rossinyol, et al. Adv. Funct. Mater. 17, 1801–1806, 2007, Wiley-VCH Verlag GmbH & Co. KGaA (2007)).