Pd nanocube as non-enzymatic glucose sensor
| Autor: | Chien-Liang Lee, Chin-Wei Chen, Jyun-Sian Ye |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Materials science
Inorganic chemistry Metals and Alloys Nanoparticle Condensed Matter Physics Electrochemistry Surfaces Coatings and Films Electronic Optical and Magnetic Materials Catalysis Anode Crystallography chemistry.chemical_compound Non enzymatic Linear range chemistry D-Glucose Materials Chemistry Glucose sensors Electrical and Electronic Engineering Instrumentation |
| Zdroj: | Sensors and Actuators B: Chemical. 208:569-574 |
| ISSN: | 0925-4005 |
| DOI: | 10.1016/j.snb.2014.11.091 |
| Popis: | Pd nanocubes enclosed by (1 0 0) planes are successfully used as stable catalysts for d -glucose sensors. In this study, a comparison of the specific activities in terms of electrochemical real surface area (ESA) between the Pd nanocubes enclosed by (1 0 0) planes and Pd nanoparticles dominated by (1 1 1) planes is performed to assess their ability to electrocatalyse glucose oxidation. By measuring activity per ESA, the nanocubes (6.3 × 10−5 C cm−2) are found to perform 1.45 times better than the nanoparticles (4.32 × 10−5 C cm−2). The higher specific activity of the nanocubes can be attributed to the higher oxidation power of the anodic glucose oxidation process catalysed by the (1 0 0) planes of the nanocubes. Furthermore, the prepared nanocubes show great potential and stability for use as a glucose sensor system as they have a sensitivity of 34 μA mM−1 cm−2 and a linear range of 1–10 mM. |
| Databáze: | OpenAIRE |
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