Multi-wall carbon nanotube gas sensors modified with amino-group to detect low concentration of formaldehyde

Abstract Gas sensors with multi-wall carbon nanotubes (MWCNTs) modified with amino-groups on interdigitated electrodes (IDE) were fabricated to detect low concentration of formaldehyde at room temperature. Effects of content of amino groups on sensing responses against various interfering circumstances and low concentration of formaldehyde were investigated. The sensor behaved high relative resistance changes to formaldehyde and lower response to interfering gases such as acetone, carbon dioxide, ammonia, toluene and ethanol. When the concentration of formaldehyde was 20 ppb, the relative resistance changes of the sensor modified with 18.19% amino-group reached 1.73%. The sensor displayed high chemical selectivity, fast response and good reproducibility to low concentration of formaldehyde, which was attributed to the properties of MWNTs and the interaction between the surface of MWCNTs and amino-group.

[1]  P. Slobodian,et al.  Multi-wall carbon nanotube networks as potential resistive gas sensors for organic vapor detection , 2011 .

[2]  Shuo Chen,et al.  Layer-by-layer assembly of all carbon nanotube ultrathin films for electrochemical applications. , 2009, Journal of the American Chemical Society.

[3]  F. Davis,et al.  Sol-gel based sensor for selective formaldehyde determination. , 2010, Analytica chimica acta.

[4]  Dongyan Ding,et al.  Hydrogen sensors based on aligned carbon nanotubes in an anodic aluminum oxide template with palladium as a top electrode , 2007 .

[5]  Saurabh Chopra,et al.  Selective gas detection using a carbon nanotube sensor , 2003 .

[6]  S. Iijima.  Helical microtubules of graphitic carbon , 1991, Nature.

[7]  Kong,et al.  Nanotube molecular wires as chemical sensors , 2000, Science.

[8]  W. M. Clift,et al.  Effect of electrode material on transport and chemical sensing characteristics of metal/carbon nanotube contacts , 2006 .

[9]  Thu-Hoa Tran-Thi,et al.  Real-time detection of formaldehyde by a sensor , 2012 .

[10]  Dirk Richter,et al.  First demonstration of a high performance difference frequency spectrometer on airborne platforms. , 2007, Optics express.

[11]  A Wisitsoraat,et al.  The effect of carbon nanotube dispersion on CO gas sensing characteristics of polyaniline gas sensor. , 2006, Journal of nanoscience and nanotechnology.

[12]  Kagan Kerman,et al.  Development of a novel hand-held formaldehyde gas sensor for the rapid detection of sick building syndrome , 2005 .

[13]  J. Rishpon,et al.  Carbon nanotubes based electrochemical biosensor for detection of formaldehyde released from a cancer cell line treated with formaldehyde-releasing anticancer prodrugs. , 2010, Bioelectrochemistry.

[14]  Yong Jia,et al.  Electronic chip based on self-oriented carbon nanotube microelectrode array to enhance the sensitivity of indoor air pollutants capacitive detection , 2011 .

[15]  Stephen J Pearton,et al.  Carbon nanotube films for room temperature hydrogen sensing , 2005, Nanotechnology.

[16]  J. Rosentreter,et al.  A piezoelectric method for monitoring formaldehyde induced crosslink formation between poly-lysine and poly-deoxyguanosine. , 2000, Talanta.

[17]  Junya Suehiro,et al.  Schottky-type response of carbon nanotube NO2 gas sensor fabricated onto aluminum electrodes by dielectrophoresis , 2006 .

[18]  K. Nagashima,et al.  An automatic monitor of formaldehyde in air by a monitoring tape method. , 1999, Journal of environmental monitoring : JEM.

[19]  Haifen Xie,et al.  Gas sensor arrays based on polymer-carbon black to detect organic vapors at low concentration , 2006 .

[20]  N. Cade,et al.  Electrochemical enzyme sensor for formaldehyde operating in the gas phase , 1996 .

[21]  Shudong Wang,et al.  Correlation between microstructure and performance of Pt/TiO2 catalysts for formaldehyde catalytic oxidation at ambient temperature: Effects of hydrogen pretreatment , 2007 .

[22]  Adisorn Tuantranont,et al.  Portable electronic nose based on carbon nanotube-SnO2 gas sensors and its application for detection of methanol contamination in whiskeys , 2010 .

[23]  P. Wakeley,et al.  Synthesis , 2013, The Role of Animals in Emerging Viral Diseases.

[24]  Peter C. Hauser,et al.  Amperometric Detection of Gaseous Formaldehydein the ppb Range , 2001 .

[25]  Saurabh Chopra,et al.  Carbon-nanotube-based resonant-circuit sensor for ammonia , 2002 .

[26]  C. Martelet,et al.  Development of highly selective and stable potentiometric sensors for formaldehyde determination. , 2000, Biosensors & bioelectronics.

[27]  G. Pratt,et al.  Evaluating differences between measured personal exposures to volatile organic compounds and concentrations in outdoor and indoor air. , 2004, Environmental science & technology.

[28]  M. Farooqui.  Formaldehyde , 1898, Reactions Weekly.

[29]  Jing Kong,et al.  Functionalized Carbon Nanotubes for Molecular Hydrogen Sensors. , 2001 .

[30]  Hong-Ming Lin,et al.  A novel SnO2 gas sensor doped with carbon nanotubes operating at room temperature , 2004 .

[31]  M. Fraser,et al.  Field intercomparison of a novel optical sensor for formaldehyde quantification , 2000, Geophysical research letters.

[32]  Yu-Hsiang Yang,et al.  Synthesis, characterization and field emission of single wall carbon nanotubes , 2009 .

[33]  Christopher Pearson,et al.  The morphology, electrical conductivity and vapour sensing ability of inkjet-printed thin films of single-wall carbon nanotubes , 2009 .

[34]  R. Paolesse,et al.  Metalloporphyrins-modified carbon nanotubes networked films-based chemical sensors for enhanced gas sensitivity , 2010 .

[35]  M. Hämmerle,et al.  Direct monitoring of organic vapours with amperometric enzyme gas sensors. , 2010, Biosensors & bioelectronics.

[36]  Tomoaki Ikegami,et al.  Development of carbon nanotube-based gas sensors for NOx gas detection working at low temperature , 2008 .

[37]  Eduard Llobet,et al.  Novel hybrid materials for gas sensing applications made of metal-decorated MWCNTs dispersed on nano-particle metal oxides , 2008 .

[38]  Robert C. Haddon,et al.  Chemically Functionalized Single-Walled Carbon Nanotubes as Ammonia Sensors† , 2004 .

[39]  G. G. Stokes.  "J." , 1890, The New Yale Book of Quotations.

[40]  L. Goldenberg,et al.  A biosensor for monitoring formaldehyde using a new lipophilic tetrathiafulvalene-tetracyanoquinodimethane salt and a polyurethane membrane. , 2002, Talanta.

[41]  Sung-Jin Kim,et al.  Highly sensitive hydrogen gas sensors using single-walled carbon nanotubes grafted with Pd nanoparticles , 2010 .

[42]  Jose Maria Kenny,et al.  Highly sensitive and selective sensors based on carbon nanotubes thin films for molecular detection , 2004 .