Hydrogen (H) has gradually become a substitute for traditional energy, but its potential danger cannot be ignored. In this study, litchi-like g-CN/InO composites were synthesized by a hydrothermal method and used to develop H sensors. The morphology characteristics and chemical composition of the samples were characterized to analyze the gas-sensing properties. Meanwhile, a series of sensors were tested to evaluate the gas-sensing performance. Among these sensors, the sensor based on the 3 wt% g-CN/InO (the mass ratio of g-CN to InO is 3:100) showeds good response properties to H, exhibiting fast response/recovery time and excellent selectivity to H. The improvement in the gas-sensing performance may be related to the special morphology, the oxygen state and the g-CN/InO heterojunction. To sum up, a sensor based on 3 wt% g-CN/InO exhibits preeminent performance for H with high sensitivity, fast response, and excellent selectivity.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9824192 | PMC |
| http://dx.doi.org/10.3390/s23010148 | DOI Listing |
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