Microchemical Journal, Journal Year: 2025, Volume and Issue: unknown, P. 113649 - 113649
Published: April 1, 2025
Language: Английский
Sensors, Journal Year: 2025, Volume and Issue: 25(9), P. 2829 - 2829
Published: April 30, 2025
Colorimetric gas sensors are based on a color changing reaction of sensor dye upon exposure to an analyte. For most applications, the must be immobilized in matrix. The choice matrix significantly influences dye’s response due different physical and chemical effects. Ideal materials should transparent, stable, compatible with dye, processable. Polymers often applied as materials, they can easily structures. In this study, we present method examine impact polymers structures functionalities dyes. Therefore, 18 studied combination pH indicator bromocresol green regarding their sensitivity ammonia. measurement setup is camera detector allows for simultaneous materials. Furthermore, regeneration time, stability, influence environmental parameters humidity temperature colorimetric investigated. study demonstrates that matrices have dyes, properties, such polarity. This has considered when choosing suitable
Language: Английский
Citations
0
Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)
Published: Nov. 6, 2024
The hydrogen (H2) energy industry has continued to expand in recent years due the decarbonization of global system and drive towards sustainable development. Due hydrogen's high flammability significant safety risks, efficient detection become an increasingly hot issue today. In this work, a new type relatively fast responsive conducting polymer sensor been demonstrated for tracing H2 gas nitrogen environment. Inspiration unique properties carbon nanotube (CNT) graphene, polyaniline (PANI) hollow nanotubes, PANI thin films are fabricated study structural-properties investigation. ensures 1 ppm at room temperature, exhibits sensitivity (29%) response recovery times 15 17 s, follows by film (20%), 65s 45s. This polymer-based holds promise early leaks wide range industries.
Language: Английский
Citations
3
Nanomaterials, Journal Year: 2025, Volume and Issue: 15(2), P. 127 - 127
Published: Jan. 16, 2025
In this study, square-star-shaped leaf-like BiVO4 nanomaterials were successfully synthesized using a conventional hydrothermal method. The microstructure, elemental composition, and gas-sensing performance of the materials thoroughly investigated. Morphological analysis revealed that prepared at different reaction temperatures exhibited structures, with most regular dense structures formed 150 °C, exhibiting large specific surface area 2.84 m2/g. response gas sensors to target gases was evaluated, results showed sensor strong NH3. At optimal operating temperature 300 its sensitivity 5 ppm NH3 reached 13.3, time 28 s recovery 16 s. Moreover, excellent repeatability anti-interference performance. These findings indicate holds great potential in environmental monitoring industrial safety detection, offering new insights for development high-performance sensors.
Language: Английский
Citations
0
Sensors and Actuators A Physical, Journal Year: 2025, Volume and Issue: unknown, P. 116492 - 116492
Published: March 1, 2025
Language: Английский
Citations
0
Microchemical Journal, Journal Year: 2025, Volume and Issue: unknown, P. 113649 - 113649
Published: April 1, 2025
Language: Английский
Citations
0