Synthesis of Novel Pd Nanosponges for Non-Enzymatic Glucose Sensor
| Autor: | Chi Yuchen, Feng Chen, Jing-Hao Li, Zhenhua Dan, Fengxiang Qin |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Detection limit
Materials science Nanostructure Biomedical Engineering chemistry.chemical_element Bioengineering Biosensing Techniques Electrochemical Techniques 02 engineering and technology General Chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Electrocatalyst Nanostructures Catalysis Glucose chemistry Chemical engineering General Materials Science Cyclic voltammetry 0210 nano-technology Biosensor Bimetallic strip Palladium |
| Zdroj: | Journal of Nanoscience and Nanotechnology. 20:7333-7341 |
| ISSN: | 1533-4880 |
| Popis: | A unique nanostructured electrocatalyst based on Palladium (Pd) nanosponge architecture is synthesized by one-step dealloying of the amorphous alloy precursor with low Pd concentration. The sponge-like nanostructure with hollow interiors enables sufficient contact between reactants andboth the interior and exterior surfaces. The results of cyclic voltammetry reveal that the as-prepared Pd nanosponge exhibits high sensitivity of 32 μA mM−1 cm−2 in a wide linear range (1–18 mM), and long-term stability toward glucose electro-oxidation. The Pd nanosponge also manifests detection limit as low as 2.0 μM (S/N = 3) and high selectivity for glucose sensing. The enhanced catalytic activity of the Pd nanosponge is attributed to the bimetallic synergistic effect and the large active surface area of the high-uniformity porous structure. The facile synthesis of the cost-effective Pd nanosponge with superior electrocatalytic performance makes it hold great potentials for biosensor and other catalysis applications. |
| Databáze: | OpenAIRE |
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