Improved Ammonia Sensing by Solution Processed Dodecyl Benzene Sulfonic Acid Doped Polyaniline Nanorod Networks

IEEE Access

卷:7

Parveen Saini¹  Md. Shahabuddin²  Jitendra Kumar³  Ajay Agarwal⁴  Anju Yadav⁴ 

[1] Academy of Scientific and Innovative Research (AcSIR), New Delhi, India;

[2] Department of Physics, Allama Iqbal College, Patliputra University, Patna, India;

[3] Department of Physics, Jamia Millia Islamia, New Delhi, India;

[4] Nano Bio Sensors Group, CSIR - Central Electronics Engineering Research Institute, Pilani, India;

关键词: Ammonia gas sensor;    conducting polymer;    dodecyl benzene sulfonic acid doped polyaniline;   

DOI  :  10.1109/ACCESS.2019.2942361

来源: DOAJ

【 摘 要 】

Dodecyl benzene sulphonic acid (DBSA) doped polyaniline (PANI) nanorods have been synthesized by a templateless route via in-situ emulsion polymerization of aniline in aqueous DBSA solution. XRD patterns, UV-Visible Spectroscopy, and FTIR analysis confirm the formation of PANI and PANI-DBSA, whereas FESEM images revealed their elongated rod shaped morphology. The chloroform dispersion of synthesized PANI-DBSA was spin coated over prefabricated interdigitated Pt patterned glass substrate to realize porous gas sensing active layer. The sensor displays good response in 1-1200 ppm ammonia concentration range and can repeatedly detect 300 ppm of ammonia with response time of 6 s, recovery time of 37 s and relative response value of 9.57. Besides, its response was found to be linear for 1-50 ppm ammonia concentration with relative response per ppm value of 0.01675.

【 授权许可】

Unknown