Acta Phys. -Chim. Sin. ›› 1988, Vol. 4 ›› Issue (04): 344-346.doi: 10.3866/PKU.WHXB19880403

• Communication • Previous Articles     Next Articles


Tian Zhongqun   

  1. Department of Chemistry; Xiamen University; Xiamen; China
  • Received:1988-03-23 Revised:1988-04-12 Published:1988-08-15

Abstract: Coadsorption in electrochemistry is a complex phenomenon involving several interactions of two or more than two species with the electrode surface. It is dif- ficult to investigate coadsorption with conventional electrochemical techniques that inevitably measure the sum of all the processes at the electrode/solution interfaces. In this article surface enhanced Raman spectroscopy (SERS)~[1-3] has been used to characterize the nature of the coadsorption process as the SER signals of these coadsorbed species can be detected simultaneously~[4]. By analysing relations of the SER spectra and the electro-chemical parameters, it is possible to classify coadsorption as two aspects: parallel coadsorption and induced coadsorption. Moreover, the latter can be further divided into two groups: induced chemical coadsorption and induced physical coadsorption.