Carbon Nanosphere Black, Soot Synthesis by Chemical Vapor Deposition for Multi Gas Sensor
Carbon Nanosphere synthesized by chemical vapor deposition from acetylene at 750°C. Fe particles of diameter ranging from 30 to 90 nm were used as the catalyst particles. The catalyst was prepared from an Iron chloride FeCl3 precursor solution that was spin–coated on P-SiO2/ (100) substrate. The growth produced were characterized by Fourier Transform Infrared Spectroscopy (FTIR), Scanning electron microscopy (SEM), X-ray diffraction (XRD), Transmittance electron microscopy (TEM) and Raman spectroscopy in order to investigate the behavior of the growth process. The carbon nanosphere sensor show the working temperature influences the sensitivity and the response time, and the best results are obtained when the sensor is at a working temperature of 200 degrees or so. The CNS displayed a specific sensitized for NO2 and H2 gases. In the same experimental conditions, the recovery of the sensors was different for NO2 and H2.
Carbon Nanosphere, Characterize, CVD, Gas Sensor
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