상온감지 가능한 탄소나노튜브 방적사 기반의 수소 감지 센서
Room Temperature Hydrogen Gas Sensor Based on Carbon Nanotube Yarn
0
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
We report the development of a room-temperature hydrogen (H2) gas sensor based on carbon nanotubes (CNT) yarn. To detect H2 gas in room temperature, a highly ordered CNT yarn was placed on a substrate from a spin-capable CNT forest, followed by the depo-sition of a platinum (Pt) layer on surface of the CNT yarn. To examine the effect of the Pt-layer on the response of the CNT sensor,a comparative sensing performance was characterized on both the Pt deposited and non-deposited CNT yarn at room temperature. ThePt-CNT yarn yielded high response, whereas the non-deposited CNT yarn showed negligible response for H2 detection at room tem- perature. Pt is a reliable and efficient catalyst that can substantially improve the detection of H2 gas by chemical sensitization via a “spill- over” effect. It can be efficiently utilized to increase the sensitivity and selectivity as well as to obtain fast response and recovery times.
Abstract
We report the development of a room-temperature hydrogen (H2) gas sensor based on carbon nanotubes (CNT) yarn. To detect H2 gas in room temperature, a highly ordered CNT yarn was placed on a substrate from a spin-capable CNT forest, followed by the depo-sition of a platinum (Pt) layer on surface of the CNT yarn. To examine the effect of the Pt-layer on the response of the CNT sensor,a comparative sensing performance was characterized on both the Pt deposited and non-deposited CNT yarn at room temperature. ThePt-CNT yarn yielded high response, whereas the non-deposited CNT yarn showed negligible response for H2 detection at room tem- perature. Pt is a reliable and efficient catalyst that can substantially improve the detection of H2 gas by chemical sensitization via a “spill- over” effect. It can be efficiently utilized to increase the sensitivity and selectivity as well as to obtain fast response and recovery times.
참고문헌 (15)
- W. J. Buttner, "An overview of hydrogen safety sensors and requirements", Int. J. Hydrog. Energy, 36, pp.2462~2470 (2011)[DOI]
- T. Hubert, "Hydrogen sensor-review", Sens. Actuator. B-chem, 157, pp.329~352 (2011)[DOI]
- X. Li, "Tin-copper mixed metal oxide nanowires: synthesis and sensor response to chemical vapors", Sens. Actuator. B-chem, 158, pp.199~207 (2011)[DOI]
- J. J. Hassan, "Room-temperature hydrogen gas sensor with ZnO nanorod arrays grown on quartz substrate", Physical E, 46, pp.254~258 (2012)[DOI]
- C. Lu, "Highly-hydrogen-sensitive SnO2 nanoscale-particles films with platinum electrodes", Sens. Actuator. B-chem, 146, pp.145~153 (2010)[DOI]
- M. Hu, "Effects of rapid thermal annealing on the room-temperature <TEX>$NO_2$<", TEX>-sensing properties of <TEX>$WO_3$<, Chin. Phys. B, pp.2013, 22[DOI]
- L. Valentini, "Sensors for sub-ppm <TEX>$NO_2$<", TEX> gas detection based on carbon nanotube thin films, 2003, pp.82, 961~963
- T. Zhang, "Recent progress in carbon nanotube-based gas sensors", Nanotechnology, 19, pp.332001~ (2008)[DOI]
- D. Zilli, "Room temperature hydrogen gas sensor nanocomposite based on Pddecorated multi-walled carbon nanotubes thin films", Sens. Actuator. B-chem, 157, pp.169~176 (2011)[DOI]
- S. Mubeen, "Palladium nanoparticles decorated single-walled carbon nanotube hydrogen sensor", J. Phys. Chem. C, 2007, pp.6321~6327 (2007)
- S. Santangelo, "On the Hydrogen Sensing Mechanism of Pt", <TEX>$TiO_2$<, CNTs Based Devices, pp.Sens. Actuator. B-chem, 2013[DOI]
- D. Jung, "Fast-response room temperature hydrogen gas sensors using Pt-coated spin-capable carbon nanotubes", ACS Appl. Mater. Interaces, 7, pp.3050~3057 (2015)[DOI]
- E. H. Espinosa, "Hybrid metal oxide and multiwall carbon nanotube films for low temperature gas sensing", Sens. Actuator. Bchem, 207, pp.137~142 (2007)
- A. Kaniyoor, "Hybrid carbon nanostructured ensembles as chemiresistive hydrogen sensors", Carbon, 49, pp.227~236 (2011)[DOI]
- I. Fasaki, "The effect of Au and Pt nanoclusters on the structural and hydrogen sensing properties of <TEX>$SnO_2$<", TEX> thin films, 2009, pp.518, 1109~1113