RESEARCH FOR FABRICATION OF ELECTRODE ON NANOCOMPOSIT MATERIALS FOR SENSOR APPLICATION
109 viewsKeywords:
Nanocomposite materials; Polyaniline; Multiwalled carbon nanotubes; H2.Abstract
In this paper, the results of research for fabrication of electrode for gas sensors based on in-situ synthesis nanocomposite materials Pt microelectrodes are presented. The Pt microelectrodes were fabricated using a standard photolithography technique with a finger width of 20 µm and a gap size of 20 µm. In-situ synthesis of the composition of polyaniline and modified multi-walled carbon nanotubes (PANi/MWCNTs) on interdigitated electrodes by electrochemical polymerization for H2 gas sensor. The polyaniline composite samples were tested by field-emission scanning electron microscopy (FE-SEM), Fourier-transform infrared (FT-IR), Ultraviolet-visible (UV-Vis) spectroscopy for identification of the composition of modified multi-walled carbon nanotubes available on surface of nanocomposite. The obtained results demonstrate that (PANi/MWCNTs) have good potential as novel at H2 gas sensor room temperature with good sensitivity, selectivity and rapid response-recovery time.
References
[1]. Phan Quốc Phô, Nguyễn Đức Chiến, “Cảm biến”, NXB Khoa học kỹ thuật (2000).
[2]. S. Weng et al, “Preparation of one-dimensional (1D) polyaniline–polypyrrole coaxial nanofibers and their application in gas sensor”, Synthetic Metals, Vol 160 (2010), pp. 1136-1142.
[3]. K. Arora et al, “Ultrasensitive DNA hybridization biosensor based on polyaniline”, Biosensors and Bioelectronics, Vol 23 (2007), pp. 613-620.
[4]. H. Yoon, “Current Trends in Sensors Based on Conducting Nanomaterials”, Nanomaterials Vol 3 (2013), pp. 524-549.
[5]. S. Abdulla et al, “Controlled Fabrication of Highly Monodispersed, Gold Nanoparticles Grafted Polyaniline (Au@PANI) Nanospheres and their Efficient Ammonia Gas Sensing Properties” Biosensors & Bioelectronics Vol 6, No. 2 (2015), p. 1000165.
[6]. M. Baibarac et al “Nanocomposites Based on Conducting s and Carbon Nanotubes from Fancy Materials to Functional Applications”, Journal of Nanoscience and Nanotechnology Vol 6 (2006), pp. 1-14.
[7]. A. Kaushik et al “Organic–Inorganic Hybrid Nanocomposite-Based Gas Sensors for Environmental Monitoring” Chemical Reviews Vol 115, No. 11 (2015), pp. 4571-4606.
[8]. E. Subramanian et al “Hybrid composite materials of anatase titania and conducting polyaniner: properties and chemical sensor application”, Indian journal of engineering and materials sciences Vol 19 (2012), pp. 237-244
[9]. C.Barbero et al “Sulfonated polyaniline films as cation insertion electrodes for battery applications. Part 1-Structural and electrochemical characterization”, Journal of Materials Chemistry, Vol 4 (1994), pp. 1775-1783.
[10]. J.L.Bredas et al “Conjugatied and Related Materials”, Oxford University Press, NewYork (1993), P.195
[11]. X.B. Yan et al “NO2 gas sensing with polyaniline nanofibers synthesized by a facile aquaeous/organic interfacial ization”, Sensors and Actuators B: Chemical, Vol 123 (2007), pp. 107-113.
[12]. M. Ghosh el al “Transport properties of HCl doped polyaniline and polyaniline–methyl cellulose dispersion”, Journal of Applied Physics, Vol 84 (1998), pp. 806-812.
[13]. H. Bai el al, “Gas sensors based on conducting”, Sensors, Vol 7 (2007), pp. 267-307.
