(393ad) Ultrasonic Spray Pyrolysis Synthesis of Ag-TiO2 Nanocomposite Photocatalysts for Simultaneous H2 Production and CO2 Reduction

TiO₂ has been investigated as lithium ion battery (LIB) anode materials due to its advantages of cost, safety and rate capacity. In particular, TiO₂-B(bronze) has shown a favorable channel structure for lithium mobility, which results in fast charge-discharge capacity of lithium cell [1]. However, poor electronic conduction of TiO₂ is one of the major drawbacks that hinders the applications of this material in LIB. In this study, a novel nest-like composite material of carbon coated TiO₂(B) nanowires was fabricated  via a combined hydrothermal and ultrasonic spray pyrolysis processes. The nest structure of nanowire aggregates resulted in a high surface area, a good packing density, and a conductive network. The electrochemical performance of the C/TiO₂-B nanocomposites was tested in a lithium half cell, which demonstrated higher rate capacity and cycle life compared with randomly oriented TiO₂-B nanowires.   

References:

[1] Hansan Liu, Zhonghe Bi, Xiao-Guang Sun, Raymond R. Unocic, M. Parans Paranthaman, Sheng Dai, and Gilbert M. Brown. Adv. Mater. 2011, 23, 3450–3454