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A high-performance hydrazine electrochemical sensor based on gold nanoparticles/single-walled carbon nanohorns composite film
- Source :
- Applied Surface Science. 369:36-42
- Publication Year :
- 2016
- Publisher :
- Elsevier BV, 2016.
-
Abstract
- A novel electrochemical sensor was developed by electrodepositing gold nanoparticles on the single-walled carbon nanohorns modified glassy carbon electrode. We used the prepared sensor to determine hydrazine for the first time. The results show that the modified electrode has good electrocatalytic activity toward the oxidation of hydrazine. Under the optimized conditions, two wide linear segments were observed between the catalytic currents and the concentration of hydrazine within the range of 0.005–3.345 mM with a detection limit of 1.1 μM (s/n = 3). The diffusion coefficient of hydrazine was also estimated using chronoamperometry. Additionally, the sensor showed excellent sensitivity, selectivity, and reproducibility properties.
- Subjects :
- Detection limit
Materials science
Inorganic chemistry
Hydrazine
General Physics and Astronomy
chemistry.chemical_element
02 engineering and technology
Surfaces and Interfaces
General Chemistry
Chronoamperometry
Single-walled carbon nanohorn
010402 general chemistry
021001 nanoscience & nanotechnology
Condensed Matter Physics
01 natural sciences
0104 chemical sciences
Surfaces, Coatings and Films
Electrochemical gas sensor
chemistry.chemical_compound
chemistry
Colloidal gold
Electrode
0210 nano-technology
Carbon
Subjects
Details
- ISSN :
- 01694332
- Volume :
- 369
- Database :
- OpenAIRE
- Journal :
- Applied Surface Science
- Accession number :
- edsair.doi...........0b27bfed5e0de07d763ad75f19fa7199