Abstract：The adsorption behavior and coadsorption of N-methylimidazole (NMIM) and 2,2’-bipyridine(2,2’-bipy) at copper electrode were investigated by in situ electrochemical surface enhanced Raman spectroscopy (SERS) in the acetonitrile solution. In situ SERS studies revealed that NMIM can adsorb stably onto Cu electrode in a quite different potential range, but the potential range for adsorbing 2,2’-bipy is narrow. With the introduction of 2,2’-bipy into the solution, the SERS could be divided into three parts: (a) under -0.8 V, NMIM molecule adsorption, (b) near the open potential, 2,2’-bipy molecule adsorption with cis-conformation, (c) at positive potential region, both NMIM and 2,2’-bipy were coadsorbed at Cu surface, and the SERS data also suggested that the NMIM bound to copper surface with a tilted orientation, while the 2,2’-bipy was adsorbed through cis-conformation to the surface.
韦萍洁,袁亚仙,顾仁敖,姚建林*. N-甲基咪唑与2,2’-联吡啶在铜表面共吸附的SERS研究[J]. 光谱学与光谱分析, 2008, 28(12): 2868-2871.
WEI Ping-jie, YUAN Ya-xian, GU Ren-ao, YAO Jian-lin*. Surface Enhanced Raman Spectroscopic Studies on the Coadsorption of N-Methylimidazole and 2,2’-Bipyridine at Cu Electrode. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2008, 28(12): 2868-2871.
[1] YANG Wen-zhi, HUANG Kui-yuan, WANG Qing, et al(杨文治, 黄魁元, 王 清, 等). Inhibitors(缓蚀剂). Beijing: Chemical Industry Press(北京：化学工业出版社), 1989. 2. [2] McMillin D R, McNet K M. Chem. Rev., 1998, 98(3): 1201. [3] MO Wan-ling, LI Guang-xing, ZHU Yong-qiang(莫婉玲, 李光兴, 朱永强). Journal of Fuel Chemistry and Technology(燃料化学学报), 2003, 31(2): 124. [4] Fleischmann M, Hendra P J, Mcquillan A. J. Chem. Phys. Lett., 1974, 26: 163. [5] Chang R K, Futak T E. Surface Enhanced Raman Scattering. New York: Plenum Press, 1982. [6] Pettinger B. Adsorption of Molecules at Metal electrodes. New York: VCH, 1992. [7] Gu R A, Yao J L, Yuan Y X, et al. Acta Chim. Sinica, 1998, 56: 692. [8] Tian Z Q, Ren B, Wu D Y. J. Phys. Chem. B, 2002, 106: 9463. [9] Cai W B, She C X, Ren B, et al. J. Chem. Soc., Faraday Trans., 1998, 94: 3127. [10] Tian Z Q, Ren B, Mao B W. J. Phys. Chem. B, 1997, 101: 1338. [11] Tian Z Q , Gao J S, Li X Q, et al. J. Raman Spectrosc., 1998, 29: 703. [12] LUO Zhi-xun, FANG Yan(骆智训，方 炎). Spectroscopy and Spectral Analysis(光谱学与光谱分析)，2006，26(2)：358. [13] Yao J L, Yuan Y X, Gu R A. J. Electroanal. Chem., 2004, 573: 255. [14] Cater D A, Pemberton J E, Woelfel K J. J. Phys. Chem. B, 1998, 102: 9870. [15] Kim M, Itoh K. J. Electroanal. Chem., 1985, 188: 137. [16] Gao X, Davies J P, Weaver M J. J. Phys. Chem., 1990, 94: 6858. [17] Zou S Z, Williams C T, Chen E K Y, et al. J. Phys. Chem. B, 1998, 102: 9039. [18] Zou S Z, Williams C T, Chen E K Y, et al. J. Am. Chem. Soc., 1998, 120: 3211. [19] Yao J L, Ren B, Liu G K, et al. J. Raman Spectrosc., 2003, 34: 221. [20] Merrit L L, Schroeder E D. Acta Crystallogr., 1956, 9: 1981.
