| Title | Tuned sensing properties of metal-modified carbon-based nanostructures layers for gas microsensors |
|---|---|
| Publication Type | Articolo su Rivista peer-reviewed |
| Year of Publication | 2012 |
| Authors | Rossi, R., Alvisi Marco, Cassano Gennaro, Pentassuglia Rocco, Dimaio D., Suriano Domenico, Serra Emanuele, Piscopiello E., Pfister Valerio, and Penza Michele |
| Journal | Lecture Notes in Electrical Engineering |
| Volume | 109 LNEE |
| Pagination | 115-119 |
| ISBN Number | 9781461409342 |
| ISSN | 18761100 |
| Keywords | Alumina, Alumina substrates, carbon, Carbon dioxide, Carbon nanomaterials, Carbon-based nanostructures, Chemical sensors, Chemiresistors, Cocatalyst, Different thickness, Electrical conductance, Fast response, Functionalized, Gas detection, Gas detectors, Gas micro sensors, Gas sensor devices, Gases, Microsystems, Nano-sized, Nanoclusters, Nanostructured materials, Nitrogen oxides, P-type, Platinum, Range detection, Sensing property, Sensor response, Short term stability |
| Abstract | In this work, carbon nanomaterials have been prepared by CVD technology onto alumina substrates, coated by nanosized Co-catalyst at different thickness (2.5 nm and 7.5 nm) and used for a simple gas sensor device. The surface has been functionalized with sputtered Pt-nanocluster at a tuned loading of 8, 15 and 30 nm. The response of the chemiresistors in terms of p-type electrical conductance has been investigated as a function of the thickness of the Pt-nanoclusters towards different gases (NO 2, NH 3, CO, CH 4, CO 2). Furthermore, the effect of the temperature ranging from 20°C to 250°C on the sensor response has been addressed as well. Additionally, a short-term stability of the carbon nanomaterials based sensor towards NO 2 gas detection has been investigated for a 2-month period. The gas sensors based on Pt-modified carbon nanomaterials exhibit higher sensitivity compared to unmodified material, fast response, reversibility, repeatability, moderate drift of the baseline signal, sub-ppm range detection limit. © 2012 Springer Science+Business Media, LLC. |
| Notes | cited By 0; Conference of 16th Conference on Italian Association of Sensors and Microsystems, AISEM 2011 ; Conference Date: 7 February 2011 Through 9 February 2011; Conference Code:88105 |
| URL | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84855791609&doi=10.1007%2f978-1-4614-0935-9_20&partnerID=40&md5=5e2765b2b646751642baa6cea54ab5b6 |
| DOI | 10.1007/978-1-4614-0935-9_20 |
| Citation Key | Rossi2012115 |
