Facile synthesis of CeO_2 nanotubes templated by modified attapulgite

• 作 者: 陈志刚 陈丰 李霞章 陆晓旺 倪超英 赵晓兵
• 机 构: Department of Chemistry and Bioengineering, Suzhou University of Science and Technology,Department o
• 出 处: Journal of Rare Earths
• 发表日期: 2010年04期
• 关键词: nanotubes template disperse spectrometer inexpensive prepare bundle SAED explain

CeO2 nanotubes were synthesized facilely via a layer-by-layer deposition approach using modified attapulgite as hard template. The formation details were investigated by a combination of X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy disperse spectroscopy (EDS) and fourier transform infrared spectrometer (FT-IR) characterizations. The obtained CeO2 nanotubes have a uniform diameter ranging from 20–40 nm with a bundle-like structure. Calcination temperature plays a critical role in the integrity of the nanotubes. A possible formation mechanism has been proposed to explain the formation of CeO2 nanotubes. This synthesis strategy by taking advantage of natural clay as sacrificial template implies a simple and inexpensive way to prepare oxide nanotubes on a large scale.

CeO2 nanotubes were synthesized facilely via a layer-by-layer deposition approach using modified attapulgite as hard template. The formation details were investigated by a combination of X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy ), energy disperse spectroscopy (EDS) and fourier transform infrared spectrometer (FT-IR) characterizations. The obtained CeO2 nanotubes have a uniform diameter ranging from 20-40 nm with a bundle-like structure. Calcination temperature plays a critical role in the integrity This synthesis strategy by taking advantage of natural clay as sacrificial template implies a simple and inexpensive way to prepare oxide nanotubes on a large scale.