We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Facet-dependent electrochemical properties of Co<sub>3</sub>O<sub>4</sub> nanocrystals toward heavy metal ions.
- Authors
Xin-Yao Yu; Qiang-Qiang Meng; Tao Luo; Yong Jia; Bai Sun; Qun-Xiang Li; Jin-Huai Liu; Xing-Jiu Huang
- Abstract
Werevealed an interesting facet-dependent electrochemical behavior toward heavy metal ions (HMIs) based on their adsorption behaviors. The (111) facet of Co3O4 nanoplates has better electrochemical sensing performance than that of the (001) facet of Co3O4 nanocubes. Adsorption measurements and density-functional theory (DFT) calculations reveals that adsorption of HMIs is responsible for the difference of electrochemical properties. Our combined experimental and theoretical studies provide a solid hint to explain the mechanism of electrochemical detection of HMIs using nanoscale metal oxides. Furthermore, this study not only suggests a promising new strategy for designing high performance electrochemical sensing interface through the selective synthesis of nanoscale materials exposed with different well-defined facets, but also provides a deep understanding for a more sensitive and selective electroanalysis at nanomaterials modified electrodes.
- Subjects
METAL ions; ADSORPTION (Chemistry); NANOCRYSTALS; ELECTROCHEMICAL analysis; NANOSTRUCTURED materials; DENSITY functional theory; ELECTRODES
- Publication
Scientific Reports, 2013, p1
- ISSN
2045-2322
- Publication type
Article
- DOI
10.1038/srep02886