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Controllable Synthesis of Pt Functionalized Black Phosphorus (BP) Nanocomposite for High Performance NOx Gas Sensor
1College of Science, Heilongjiang Bayi Agricultural University, Daqing 163319, PR China.
Journal of Nanoscience and Nanotechnology
|March 11, 2021
Summary
Researchers developed a novel platinum-functionalized black phosphorus (BP) nanocomposite for gas sensing. This material offers highly sensitive and rapid detection of nitrogen oxides (NOx) at room temperature.
Area of Science:
- Materials Science
- Nanotechnology
- Chemical Sensing
Background:
- Functional sensors utilizing nanomaterials offer superior sensitivity, multifunctionality, and lower cost compared to bulk materials.
- Black phosphorus (BP), a 2D material, possesses unique electronic and adsorption properties beneficial for sensor applications.
Purpose of the Study:
- To synthesize a platinum (Pt)-functionalized black phosphorus (BP) nanocomposite.
- To evaluate the performance of the synthesized nanocomposite for nitrogen oxides (NOx) detection.
Main Methods:
- Black phosphorus bulk material was processed into 2D nanosheets dispersed in dimethylformamide (DMF).
- A one-step reduction method was employed to synthesize Pt-functionalized BP nanocomposite.
- Characterization of Pt nanoparticle distribution on BP nanosheets was performed.
Main Results:
- The Pt-functionalized BP nanocomposite demonstrated a high response (2.19) to 10 ppm NOx.
- Rapid detection was achieved within 1.93 seconds at room temperature.
- A low detection limit of 30 ppb for NOx was recorded.
Conclusions:
- The Pt-functionalized BP nanocomposite shows significant potential for precise NOx detection.
- The material's properties are suitable for developing advanced gas sensing technologies.
