Research Article
Catalyst-Free Vapor-Phase Method for Direct Integration of Gas Sensing Nanostructures with Polymeric Transducing Platforms
Table 1
Summary of the gas sensing response and techniques employed to integrate sensing materials and flexible transducing platforms.
| Material | Method | Gas | ppm | , °C | / | , s | , s | Reference |
| WO3 (NNs) | AACVD | H2 | 50 | 250 | 1.1 | 120 | 150 | This work | ZnO (NWs) | Thermal oxidation | H2 | 500 | 280 | 11 | <10 | — | [9] | ZnO (NRs) | Thermal oxidation | NO2 | 0.5 | — | 1.8 | — | — | [10] | ZnO (NRs) | Hydrothermal | EtOH | 10 | 300 | 9 | — | — | [7] | Pd/ZnO (NRs) | Hydrothermal | H2 | 1000 | RT | 1.9 | — | — | [8] | ZnO (NRs) | Thermolysis | EtOH | 100 | 300 | 3.11 | 237 | 318 | [22] | SnO2 (TT) | Drop coating | | 2 | 325 | 23.8 | — | — | [23] | Pd/SnO2 (TT) | Drop coating | EtOH | 400 | — | 150 | — | — | [24] | WO3 (TT) | Drop coating | NO2 | 5 | — | 200 | — | — | [24] | | Sputtering | O3 | 0.02 | RT | 1.8 | — | — | [25] | CNFs | Spray | NH3 | 500 | 220 | 1.3 | 300 | — | [26] | CNT/graphene | Post transfer* | NO2 | 5 | — | 1.1 | >30 | >30 | [27] | CNT | Wet transfer | DMMP | 1 | RT | 4 | — | — | [28] | CNT | Mech. abrasion | NH3 | 0.5 | — | 2–13 | >200 | >200 | [29] |
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—: not specified, *dry or wet post transfer (not specified), TT: thick film, NWs: nanowires, NNs: nanoneedles, NRs: nanorods, CNFs: carbon nanofibers, PECVD: plasma enhanced CVD, and RT: room temperature.
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