Hydrogen sensing properties of protective-layer-coated single-walled carbon nanotubes with palladium nanoparticle decoration
作者： W Wongwiriyapan , Y Okabayashi , S Minami , K Itabashi , T Ueda
DOI: 10.1088/0957-4484/22/5/055501
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摘要: Protective-layer-coated single-walled carbon nanotubes (SWNTs) with palladium nanoparticle decoration (Pd–SiO2–SWNTs) were fabricated and their sensing properties for hydrogen (H2) investigated. SWNTs coated a 3–4 nm thick SiO2 layer by pulsed laser deposition subsequently decorated Pd nanoparticles electron beam evaporation. Even though the completely surrounded protective layer, Pd–SiO2–SWNTs responded to H2 down concentration of 1 part per million. Compared nanoparticle-decorated without (Pd–SWNTs), exhibited highly stable sensor responses variations less than 20%; Pd–SWNTs showed variation 80%. The density significantly decreased after test, while that netlike structure remained unchanged. mechanism was attributed chemical gating effect on due dipole formation atoms trapped at Pd–SiO2 interface. Moreover, relationship between response can be described Langmuir isotherm dissociative adsorption.
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sci-hub.se 参考文章(18)
I. Lundström, S. Shivaraman, C. Svensson, L. Lundkvist, A hydrogen−sensitive MOS field−effect transistor Applied Physics Letters. ,vol. 26, pp. 55- 57 ,(1975) , 10.1063/1.88053
Y Zhang, Nathan W Franklin, Robert J Chen, Hongjie Dai, Metal coating on suspended carbon nanotubes and its implication to metal–tube interaction Chemical Physics Letters. ,vol. 331, pp. 35- 41 ,(2000) , 10.1016/S0009-2614(00)01162-3
Jing Kong, Nathan R Franklin, Chongwu Zhou, Michael G Chapline, Shu Peng, Kyeongjae Cho, Hongjie Dai, Nanotube molecular wires as chemical sensors Science. ,vol. 287, pp. 622- 625 ,(2000) , 10.1126/SCIENCE.287.5453.622
Alexander Star, Vikram Joshi, Sergei Skarupo, David Thomas, Jean-Christophe P. Gabriel, Gas sensor array based on metal-decorated carbon nanotubes. Journal of Physical Chemistry B. ,vol. 110, pp. 21014- 21020 ,(2006) , 10.1021/JP064371Z
J Fogelberg, Mats Eriksson, Helen Dannetun, L‐G Petersson, None, Kinetic modeling of hydrogen adsorption/absorption in thin films on hydrogen‐sensitive field‐effect devices: Observation of large hydrogen‐induced dipoles at the Pd‐SiO2 interface Journal of Applied Physics. ,vol. 78, pp. 988- 996 ,(1995) , 10.1063/1.360293
Philip G Collins, Keith Bradley, Masa Ishigami, d A Zettl, Extreme oxygen sensitivity of electronic properties of carbon nanotubes Science. ,vol. 287, pp. 1801- 1804 ,(2000) , 10.1126/SCIENCE.287.5459.1801
Mats Eriksson, Lars-Gunnar Ekedahl, Hydrogen adsorption states at the Pd/SiO2 interface and simulation of the response of a Pd metal–oxide–semiconductor hydrogen sensor Journal of Applied Physics. ,vol. 83, pp. 3947- 3951 ,(1998) , 10.1063/1.367150
I. Lundström, A. Spetz, F. Winquist, U. Ackelid, H. Sundgren, Catalytic metals and field-effect devices—a useful combination Sensors and Actuators B: Chemical. ,vol. 1, pp. 15- 20 ,(1990) , 10.1016/0925-4005(90)80164-U
Winadda Wongwiriyapan, Satoshi Inoue, Tatsuya Ito, Ryotaro Shimazaki, Toru Maekawa, Kengo Suzuki, Hiroshi Ishikawa, Shin-ichi Honda, Kenjiro Oura, Mitsuhiro Katayama, Highly Sensitive Detection of Carbon Monoxide at Room Temperature Using Platinum-Decorated Single-Walled Carbon Nanotubes Applied Physics Express. ,vol. 1, pp. 014004- ,(2008) , 10.1143/APEX.1.014004
W Wongwiriyapan, S Honda, H Konishi, T Mizuta, T Ohmori, Y Kishimoto, T Ito, T Maekawa, K Suzuki, H Ishikawa, T Murakami, K Kisoda, H Harima, K Oura, M Katayama, Influence of the growth morphology of single-walled carbon nanotubes on gas sensing performance Nanotechnology. ,vol. 17, pp. 4424- 4430 ,(2006) , 10.1088/0957-4484/17/17/023