Synthesis of ZrO2-carbon nanotube composites and their application as chemiluminescent sensor material for ethanol

Zhenyu Sun; Xinrong Zhang; Na Na; Zhimin Liu; Buxing Han; Guimin An

doi:10.1021/jp0616359

Synthesis of ZrO2-carbon nanotube composites and their application as chemiluminescent sensor material for ethanol

J Phys Chem B. 2006 Jul 13;110(27):13410-4. doi: 10.1021/jp0616359.

Authors

Zhenyu Sun¹, Xinrong Zhang, Na Na, Zhimin Liu, Buxing Han, Guimin An

Affiliation

¹ Beijing National Laboratory for Molecular Science, Laboratory of Colloids, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China.

PMID: 16821863
DOI: 10.1021/jp0616359

Abstract

ZrO2-carbon nanotube (CNT) composites have been successfully synthesized via decomposition of Zr(NO3)4.5H2O in supercritical carbon dioxide-ethanol solution with dispersed CNTs at relatively low temperatures. The samples were characterized by X-ray photoelectron spectroscopy (XPS), X-ray diffraction spectroscopy (XRD), transmission electron microscopy (TEM), and energy-dispersive X-ray (EDX) analyses. It was demonstrated that CNTs were fully coated with an amorphous ZrO2 layer, and the coating layer was nominally complete and uniform. In addition, the thickness of the coating sheath could be readily controlled by tuning the Zr(NO3)4.5H2O/CNTs ratio used. Furthermore, the chemiluminescent sensor prepared from ZrO2-carbon nanotube composites exhibited dramatic sensitivity as well as high stability and selectivity to ethanol.