Quartz crystal microbalance with gold electrodes as a sensor for monitoring gas-phase adsorption/desorption of short chain alkylthiol and alkyl sulfides

Abstract

A quartz crystal microbalance (QCM) with gold electrodes was used as a sensor to monitor the gas-phase adsorption/desorption of ethanethiol, propane-1-thiol, 2-methylpropane-2-thiol, 2-methylpropane-1-thiol, butane-1-thiol, butane-2-thiol, pentanethiol, methyl sulfide and ethyl methyl sulfide. The results show that the QCM is able to distinguish adsorbed layers with different binding energies from the gold.

References

1. R. G. Nuzzo, B. R. Zegarski and L. H. Dubois, J. Am. Chem. Soc., 1987, 109, 733.
2. G. M. Whitesides and P. E. Laibinis, Langmuir, 1990, 6, 87.
3. M. D. Porter, T. B. Bright, D. L. Allara and C. E. D. Chidsey, J. Am. Chem. Soc., 1987, 109, 3559.
4. K. Shimadzu, I. Yagi, Y. Sato and K. Uosaki, Langmuir, 1992, 8, 1385.
5. R. C. Thomas, L. Sun, R. M. Crooks and A. J. Ricco, Langmuir, 1991, 7, 620.
6. J. M. Slater and J. Paynter, Analyst, 1994, 119, 191.
7. T. Wink, S. J. van Zuilen, A. Bult and W. P. van Bennekom, Analyst, 1997, 122, 43R.
8. S.-C. Chang, I. Chao and Y.-T. Tao, J. Am. Chem. Soc., 1994, 116, 6792.