title: Hierarchical CuO nanochains: synthesis and their electrocatalytic determination of nitrite.
abstract: Microspheres with multilevel structure are widely used as removable catalysts, adsorbents, drug carriers and imaging contrast agents due to their hierarchical porosity. In this paper a facile wet chemical method for the synthesis of hierarchically nanostructured CuO chains assembled with small nanorods is reported. The as prepared nanomaterial is characterized using X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM) and high-resolution transmission electron microscopy (HRTEM). The autocatalytic response to nitrite ions is also carried out, which exhibits a wide linear range (0.004-3.7 mM), sound sensitivity (177.9 μA mg(-1) dL(-1) cm(-2)), highly reproducible response (R.S.D. of 2.0%), and an excellent long-term stability. The good analytical performance, low cost and straightforward preparation method make this novel electrode material promising for the development of effective nitrite sensors.
authors: School of Chemistry and Environment, Beijing University of Aeronautics and Astronautics, Beijing, China.
authors: Cao
authors: C
authors: Xia
authors: Cai
authors: C
authors: Xiaolan
authors: Wang
authors: W
authors: Ning
authors: Guo
authors: G
authors: Lin