[Competitive adsorption studies of pyridine and acetonitrile on platinum electrodes in non-aqueous system by surface-enhanced Raman spectroscopy].
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.
Gu
Ren-ao
RA
Department of Chemistry, Soochow University, Suzhou 215006, China.
Ding
Bang-dong
BD
Sun
Yu-hua
YH
Cao
Pei-gen
PG
Yao
Jian-lin
JL
Ren
Bin
B
Tian
Zhong-qun
ZQ
D000097:Acetonitriles / Q000737:chemistry*; D000327:Adsorption; D004566:Electrodes; D010984:Platinum; D011725:Pyridines / Q000737:chemistry*; D012996:Solutions; D013059:Spectrum Analysis, Raman / Q000379:methods
D000097:Acetonitriles; D011725:Pyridines; D012996:Solutions; D010984:Platinum