Template-directed synthesis of titania nanocages with four tetrahedrally arranged open windows

Jiaji Cheng (1) , Nicolas Mallet (1) , Walid Baaziz (2) , Ovidiu Ersen (2) , Emilie Gombart (3) , Valérie Alard (4) , Jérôme Majimel (1) , Marie-Hélène Delville (1) , Mona Tréguer-Delapierre (1) , Etienne Duguet (1)

1 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux
2 IPCMS - Institut de Physique et Chimie des Matériaux de Strasbourg
3 Parfums et Cosmétiques
4 Parfums et Cosmétiques

Original titania nanocages are fabricated from sacrificial silica/polystyrene tetrapod‐like templates. Here the template synthesis, titania deposition and nanocage development through polystyrene dissolution and subsequent silica etching are described. Discussion about the competitive deposition of titania on the biphasic templates is particularly emphasized. The morphology of the nanocages is investigated by TEM, STEM, EDX mapping and electron tomography.

Domaines: Matériaux; Chimie inorganique

Jiaji Cheng, Nicolas Mallet, Walid Baaziz, Ovidiu Ersen, Emilie Gombart, et al.. Template-directed synthesis of titania nanocages with four tetrahedrally arranged open windows. Chemistry - A European Journal, 2018, 24 (27), pp.6917-6921. ⟨10.1002/chem.201800186⟩. ⟨hal-01780700⟩