硫脲在硝酸介质中的拉曼光谱研究钟起玲粟晓琼刘峰名＊田中群＊（江西师范大学化学系南昌330027）（＊厦门大学固体表面物理化学国家重点实验室厦门361005）rAMAnSPECTrOSCOPICSTudIESOfTHIOurEAInnITrICACI...Abstract Using normal Raman and surFace enhanced Raman (SERS) spectroscopies, we have studied the behaviours of thiourea(TU) adsorbed on the surFace of silver electrode in the nitric acid medium and in the mixed medium of nitric acid and perchloric acid.It was Found that TU can be vertically chemi adsorbed on the surFace of silver electrode through the S and can induce coadsorbed NO - 3 through its protonated amino of TU.The SERS active centers of the surFace of silver electrode are very stable since the SERS signals of TU can be observed even at the negative potential of -2.0V.国家自然科学基金;江西省自然科学基
