Enhanced catalytic activity of nanoscale platinum islands loaded onto SnO2 thin film for sensitive LPG gas sensors
Source abstract
Abstract
In the present study, different catalysts (∼ 10 nm thick) including metals, noble metals and metal oxides, were loaded in dotted island form over SnO2 thin film for LPG gas detection. A comparison of various catalysts indicated that the presence of platinum dotted islands over SnO2 thin film deposited by r.f. sputtering exhibited enhanced response characteristics with a high sensitivity, ∼ 742, at an operating temperature of ∼ 280°C. Different characterization techniques have been employed such as atomic force microscopy, X-ray diffraction and UV-vis spectroscopy, to study the surface morphology, grain size and optical properties of the deposited thin films. The results suggest the possibility of utilizing the sensor element with the present novel method of catalyst dispersal for the efficient detection of LPG.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Gas Sensing Nanomaterials and Sensors · Advanced Chemical Sensor Technologies · Air Quality Monitoring and Forecasting
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (18)
Show source-provided references
1. Baruwati B, Kumar D K and Manorama S V 2006 Sens. Actuators B119 67610.1016/j.snb.2006.01.028 ↗
2. Bonasewicz P, Hirschwald W and Neumann G 1986 J. Electrochem. Soc. 133 227010.1149/1.2108393 ↗
3. Chaudhari G N, Bende A M, Bodade A B, Patil S S and Manorama S V 2006 Talanta 69 18710.1016/j.talanta.2005.09.024 ↗
4. Chowdhuri A, Gupta V and Sreenivas K 2003 Sens. & Actuators B93 57210.1016/S0925-4005(03)00226-0 ↗
5. Gupta S, Roy R K and Pal Chowdhury M 2004 Vacuum 75 11110.1016/j.vacuum.2004.01.075 ↗
6. Heiland G, Kohl D and Seiyama T (eds) 1988 Chem. Sens. Technol. 1 1510.1016/B978-0-444-98901-7.50007-5 ↗
7. Ihokura K and Watson J 1994 The stannic oxide gas sensor, Principles and applications (Boca Raton, FL: CRC Press)
8. Jain K, Pant R P and Lakshmikumar S T 2006 Sens. Actuators B113 82310.1016/j.snb.2005.03.104 ↗
9. Phani A R, Manorama S and Rao V I 1998 Mater. Chem. & Phys. 58 10110.1016/S0254-0584(98)00251-X ↗
10. Pourfayaz F, Khodadadi A, Mortazavi Y and Mohajerzadeh S S 2005 Sens. Actuators B108 17210.1016/j.snb.2004.12.107 ↗
11. Reddy M M H and Chandorkar A N 1999 Thin Solid Films 349 26010.1016/S0040-6090(99)00194-7 ↗
12. Sahm T, Gurlo A, Bârsan N and Weimar U 2006 Sens. Actuators B118 7810.1016/j.snb.2006.04.004 ↗
13. Senguttuvan T D, Rai R and Lakshmikumar S T 2007 Mater. Letts 61 58210.1016/j.matlet.2006.05.012 ↗
14. Shinde V R, Gujar T P and Lokhande C D 2007 Sens. Actuators B123 70110.1016/j.snb.2006.10.003 ↗
15. Srivastava A, Rashmi and Jain K 2007 Mater. Chem. & Phys. 105 38510.1016/j.matchemphys.2007.05.003 ↗
16. Wagh M S, Jain G H, Patil D R and Patil D R 2007 Sens. Actuators B122 35710.1016/j.snb.2006.05.014 ↗
17. Waghulade R B, Patil P P and Pasricha R 2007 Talanta 72 59410.1016/j.talanta.2006.11.024 ↗
18. Yadav H K, Sreenivas K and Gupta V 2007 Appl. Phys. Lett. 90 17211310.1063/1.2733628 ↗