title: Template synthesis, organic gas-sensing and optical properties of hollow and porous In(2)O(3) nanospheres.
abstract: Hollow and porous In(2)O(3) nanospheres have been prepared by the hydrolysis of InCl(3) using carbonaceous spheres as templates in combination with calcination. Based on the observation of scanning electronic microscopy (SEM) and transmission electron microscopy (TEM), it has been revealed that the as-prepared In(2)O(3) nanospheres have a uniform diameter of around 200 nm and hollow structures with thin shells of about 30 nm consisting of numerous nanocrystals and nanopores. Owing to the hollow and porous structures, In(2)O(3) nanospheres possessing more active surface area exhibit a good response and reversibility to some organic gases such as methanol, alcohol, acetone and ethyl ether. In addition, the response mechanism of hollow and porous In(2)O(3) nanospheres to organic gases has been proposed. Furthermore, these prepared In(2)O(3) spheres showed a UV-visible absorption peak centered at around 309 nm, and their photoluminescence spectra have also been investigated.
authors: The Key Laboratory of Biomimetic Sensing and Advanced Robot Technology, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, People's Republic of China. Department of Chemistry, School of Chemistry and Materials, University of Science and Technology of China, Hefei 230026, People's Republic of China.
authors: Zheng
authors: Z
authors: Guo
authors: Jinyun
authors: J
authors: Liu
authors: Yong
authors: Y
authors: Jia
authors: Xing
authors: X
authors: Chen
authors: Fanli
authors: F
authors: Meng
authors: Minqiang
authors: M
authors: Li
authors: Jinhuai
authors: J
authors: Liu