writer：Fengbin Li , Xueping Yao , Zhaogen Wang , Weihong Xing , Wanqin Jin , Jun Huang , and Yong Wang *
keywords：atomic layer deposition, block copolymers, mesoporous materials, metal oxides
source：期刊
specific source：Nano Letters
Issue time：2012年

Mesoporous metal oxide networks composed of interconnected nanotubes with ultrathin tube walls down to 3 nm and high porosity up to 90% were fabricated by atomic layer deposition (ALD) of alumina or titania onto templates of swelling-induced porous block copolymers. The nanotube networks possessed dual sets of interconnected pores separated by the tube wall whose thickness could be finely tuned by altering ALD cycles. Because of the excellent pore interconnectivity and high porosity, the alumina nanotube networks showed superior humidity-sensing performances.