Gu Ren-ao, Ding Bang-dong, Sun Yu-hua, Cao Pei-gen, Yao Jian-lin, Ren Bin, Tian Zhong-qun
Department of Chemistry, Soochow University, Suzhou 215006, China.
Guang Pu Xue Yu Guang Pu Fen Xi. 2002 Dec;22(6):967-9.
In the non-aqueous acetonitrile solution, recurring to the confocal Raman system, we studied the intensively chemical adsorption of pyridine(Py) on the surface of platinum electrode utilizing surface-enhanced Raman scattering (SERS). With the change in the potential, the quantity and adsorptive orientation of the adsorbate also change, interacting on the surrounding molecules. In the present paper, the adsorption of Py on the surface of platinum electrode was not only clearly observed, but also the dissociation of acetonitrile was discovered simultaneously. And the more complicated double layer in the non-aqueous solution than in the aqueous one explains the differences of the results between the non-aqueous and aqueous solutions.
在非水乙腈溶液中，借助共焦拉曼系统，我们利用表面增强拉曼散射（SERS）研究了吡啶（Py）在铂电极表面的强烈化学吸附。随着电位的变化，吸附质的数量和吸附取向也会改变，并与周围分子相互作用。在本文中，不仅清晰地观察到了Py在铂电极表面的吸附，同时还发现了乙腈的解离。而且，非水溶液中比水溶液中更复杂的双电层解释了非水溶液和水溶液结果之间的差异。
