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Electrochemical Growth of Palladium Nanowire for Highly Sensitive Hydrogen Sensor  

Jo, S.Y. (School of Semiconductor and Chemical Engineering and Technology, Chonbuk National University)
Kang, B.R. (School of Semiconductor and Chemical Engineering and Technology, Chonbuk National University)
Im, Y.H. (School of Semiconductor and Chemical Engineering and Technology, Chonbuk National University)
Publication Information
Journal of Energy Engineering / v.19, no.1, 2010 , pp. 21-24 More about this Journal
Abstract
We present a novel electrochemical method to fabricate a single Pd nanowire based on direct current assisted dielectropheresis (DEP) process between two predefined metal electrodes. The electrochemical methods was investigated as functions of frequency and voltage for optimal growth conditions of Pd nanowire. The synthesized Pd nanowire have a good resistance of $1\;k{\Omega}$, diameters of several hundred nanometers on average and lengths of $8\;{\mu}m$. Finally, the single Pd nanowire was capable of detecting hydrogen in the concentration range from 100 to 2500 ppm with high sensitivity and response time, thus demonstrating its suitability for use as a hydrogen sensor.
Keywords
hydrogen sensor; Pd nanowire; electrochemical method;
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1 Star A., Gabriel J-C. P., Bradley K. and GrUner G., "Electronic detection of specific protein binding using nanotube FET devices", Nano lett., vol. 3(4), 459-463 (2003).   DOI   ScienceOn
2 Jo S.Y., Kang B. R., Kim J. T., Ra H. W. and Im Y. H., "The synthesis of single PdAu bimetallic nanowire: feasibility study for hydrogen sensing", Nanotechnology, vol. 21, 055604-055608, (2010).   DOI   ScienceOn
3 Lu W. and Lieber C. M., "Nanoelectronics from the bottom up", Nature Mater., 6, 841-850(2007).   DOI   ScienceOn
4 Cui Y., Wei Q., Park H. K., Lieber C. M., "Nanowire nanosensors for highly sensitive and selective detection of biological and chemical species", Science, 293, 1289-1292(2001).   DOI   ScienceOn
5 Wu J. J., and Liu S. C., "Low-temperature growth of well-aligned ZnO nanorods by chemical vapor deposition", Adv. Mater., vol. 14(3), 215-218(2002).   DOI   ScienceOn
6 Favier F., Walter E. C., Zach M. P., Benter T. and Penner R. M., "Hydrogen sensors and switches from electrodeposited palladium mesowire arrays", Science, 293, 2227-2231(2001).   DOI
7 Tans S. J., Devoret. M. H., Dai H., Thess A., Smalley R. E., Geerligs L. J., and Dekker C., "Individual singlewall carbon nanotubes as quantum wires", Nature, 386, 474-477(1997).   DOI   ScienceOn
8 Pan Z. W., Dai Z. R., and Wang Z. L., "Nanobelts of semiconducting oxides", Science, 291, 1947-1949(2001).   DOI