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A room-temperature TiO2-nanotube hydrogen sensor able to self-clean photoactively from environmental contamination

Published online by Cambridge University Press:  03 March 2011

Gopal K. Mor ,
Maria A. Carvalho ,
Ooman K. Varghese ,
Michael V. Pishko  and
Craig A. Grimes
Gopal K. Mor
Affiliation:
Department of Electrical Engineering and Department of Materials Science and Engineering, 217 Materials Research Laboratory, The Pennsylvania State University, University Park, Pennsylvania 16802
Maria A. Carvalho
Affiliation:
Department of Chemical Engineering, 267 Materials Research Laboratory, The Pennsylvania State University, University Park, Pennsylvania 16802
Ooman K. Varghese
Affiliation:
Department of Electrical Engineering and Department of Materials Science and Engineering. 217 Materials Research Laboratory, The Pennsylvania State University, University Park, Pennsylvania 16802
Michael V. Pishko
Affiliation:
Department of Chemical Engineering, 267 Materials Research Laboratory, The Pennsylvania State University, University Park, Pennsylvania 16802
Craig A. Grimes*
Affiliation:
Department of Electrical Engineering and Department of Materials Science and Engineering, 217 Materials Research Laboratory, The Pensylvania State University, University Park, Pennsylvania 16802
*
a)Address all correspondence to this author. e-mail: cgrimes@engr.psu.edu
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Abstract

Described is a room-temperature hydrogen sensor comprised of a TiO2-nanotube array able to recover substantially from sensor poisoning through ultraviolet (UV) photocatalytic oxidation of the contaminating agent; in this case, various grades of motor oil. The TiO2 nanotubes comprising the sensor are a mixture of both anatase and rutile phases, having nominal dimensions of 22-nm inner diameter, 13.5-nm wall thickness, and 400-nm length, coated with a 10-nm-thick noncontinuous palladium layer. At 24 °C, in response to 1000 ppm of hydrogen, the sensors show a fully reversible change in electrical resistance of approximately 175,000%. Cyclic voltammograms using a 1 N KOH electrolyte under 170 mW/cm2 UV illumination show, for both a clean and an oil-contaminated sensor, anodic current densities of approximately 28 mA/cm2 at 2.5 V. The open circuit oxidation potential shows a shift from 0.5 V to −0.97 V upon UV illumination.

Keywords

Surface reactionCeramicChemical reactivity
Type
Articles
Information
Journal of Materials Research , Volume 19 , Issue 2 , February 2004 , pp. 628 - 634
Copyright
Copyright © Materials Research Society 2004

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References

REFERENCES

1Varghese, O.K., Gong, D., Paulose, M., Ong, K.G., Dickey, E.C. and Grimes, C.A.: Adv. Mater. 15 624 (2003).Google Scholar
2Carotta, M.C., Ferroni, M., Gnani, D., Guidi, V., Merli, M., Martinelli, G., Casale, M.C. and Notaro, M.: Sens. Actuators B 58 310 (1999).CrossRefGoogle Scholar
3Savage, N., Chwieroth, B., Ginwalla, A., Patton, B.R., Akbar, S.A. and Datta, P.K.: Sens. Actuators B 79 17 (2001).CrossRefGoogle Scholar
4Guidi, V., Carotta, M.C., Ferroni, M., Martinelli, G., Paglialonga, L., Comini, E. and Sberveglieri, G.: Sens. Actuators B 57 197 (1999).CrossRefGoogle Scholar
5Ruiz, A., Arbiol, J., Cirera, A., Cornet, A. and Morante, J.R.: Mater. Sci. Eng. C 19 105 (2002).CrossRefGoogle Scholar
6Matthews, R.W.: Water Research 20 569 (1986).CrossRefGoogle Scholar
7Mills, A. and Hunte, S.L.: J. Photochem. Photobio. A 108 1 (1997).CrossRefGoogle Scholar
8Konstantinou, I.K. and Albanis, T.A.: Appl. Catal. B 42 319 (2003).CrossRefGoogle Scholar
9Tanaka, K. and Reddy, K.S.N.: Appl. Catal. B 39 305 (2002).CrossRefGoogle Scholar
10Higarashi, M.M. and Jardim, W.F.: Catalysis Today 76 201 (2002).CrossRefGoogle Scholar
11Malato, S., Blanco, J., Richter, C., Fernández, P. and Maldonado, M.I.: Solar Energy Materials and Solar Cells 64 1 (2000).CrossRefGoogle Scholar
12Chiron, S., Fernandez-Alba, A., Rodriguez, A. and Garcia-Calvo, E.: Water Research 34 366 (2000).CrossRefGoogle Scholar
13Vulliet, E., Chovelon, J-M., Guillard, C. and Herrmann, J-M.: J. Photochem. Photobio. A 159 71 (2003).CrossRefGoogle Scholar
14Garcia, J.C. and Takashima, K.: J. Photochem. Photobio. A 155 215 (2003).Google Scholar
15Vidal, A., Dinya, Z.Mogyorodi, F. Jr. and Mogyorodi, F.: Appl. Catal. B 21 259 (1999).CrossRefGoogle Scholar
16Moctezuma, E., Leyva, E., Monreal, E., Villegas, N. and Infante, D.: Chemosphere 39 511 (1999).CrossRefGoogle Scholar
17Maurino, V., Minero, C., Pelizzetti, E. and Vincenti, M.: Colloids Surf. A 151 329 (1999).CrossRefGoogle Scholar
18Pelizzetti, E., Maurino, V., Minero, C., Zerbinati, O. and Borgarello, E.: Chemosphere 18 1437 (1989).CrossRefGoogle Scholar
19Gong, D., Grimes, C.A., Varghese, O.K., Hu, W., Singh, R.S., Chen, Z. and Dickey, E.C.: J. Mater. Res. 16 3331 (2001).CrossRefGoogle Scholar
20Hoffmann, M.R., Martin, S.T., Choi, W. and Bahnemann, D.W.: Chem. Rev. 95 69 (1995).CrossRefGoogle Scholar
21Wang, R., Hashimoto, K., Fujishima, A., Chikuni, M., Kojima, E., Kitamura, A., Shimohigoshi, M. and Watanabe, T.: Nature 388 431 (1997).CrossRefGoogle Scholar
22Sakai, N., Fujishama, A., Watanabe, T. and Hashimoto, K.: J. Phys. Chem. B 107 1028 (2003).CrossRefGoogle Scholar
23Zeman, P. and Takabayashi, S.: J. Vac. Sci. Technol. A 20 388 (2002).CrossRefGoogle Scholar
24Mills, A. and Lee, S-K.: J. Photochem. Photobiol. A 152 233 (2002).CrossRefGoogle Scholar
25Rome, V., Pichat, P., Guillard, C., Chopin, T. and Lehaut, C.: New J. Chem. 23 365 (1999).Google Scholar
26Who, D.X.: J. Photochem. Photobiol. 137 53 (2000).Google Scholar
27Beydoun, D., Amal, R., Low, G. and McEvoy, S.: Journal of Nanoparticle Research 1 439 (1999).CrossRefGoogle Scholar
28Varghese, O.K., Paulose, M., Gong, D., Grimes, C.A. and Dickey, E.C.: J. Mater. Res. 18 156 (2003).CrossRefGoogle Scholar
29Ohtani, B., Ogawa, Y. and Nishimoto, S.: J. Phys. Chem. B 101 3746 (1997).CrossRefGoogle Scholar
30Pick, M.A., Davenport, J.W., Strongin, M. and Dienes, G.J.: Phys. Rev. Lett. 43 286 (1979).CrossRefGoogle Scholar
31Bodzenta, J., Burak, B., Gacek, Z., Jakubik, W.P., Kochowski, S. and Urbanczyk, M.: Sens. Actuators B 87 82 (2002).CrossRefGoogle Scholar
32Abdullah, M., Low, G.K-C. and Matthews, R.W.: J . Phys. Chem. 94 6820 (1990).CrossRefGoogle Scholar
33Zheng, S., Gao, L., Zhang, Q. and Sun, J.: J. Solid State Chem. 162 138 (2001).CrossRefGoogle Scholar
34Wang, C-M., Heller, A. and Gerischer, H.: J. Am. Chem. Soc. 114 5230 (1992).CrossRefGoogle Scholar
35Papp, J., Shen, H-S., Kershaw, R., Dwight, K. and Wold, A.: Chem. Mater. 5 284 (1993).CrossRefGoogle Scholar
36Wang, C-C., Zhang, Z. and Ying, J.Y.: Nanostruct. Mater. 9 583 (1997).CrossRefGoogle Scholar
37Zhang, Z., Wang, C-C., Zakaria, R. and Ying, J.Y.: J. Phys. Chem. B 102 10871 (1998).CrossRefGoogle Scholar
38Hagfeldt, A. and Graetzel, M.: Chem. Rev. 95 49 (1995).CrossRefGoogle Scholar
39Jaksic, M.M.: International Journal of Hydrogen Energy 26 559 (2001).CrossRefGoogle Scholar
40Zaban, A., Meier, A. and Gregg, B.A.: J. Phys. Chem. B 101 7985 (1997).CrossRefGoogle Scholar
41Lewis, L.N.: Chem. Rev. 93 2693 (1993).CrossRefGoogle Scholar