西北师范大学学报（自然科学版）2013，Vol.49Issue(4)：57-60,4.
异烟酸在Au电极上的紫外表面增强拉曼散射研究
Ultraviolet surface-enhanced Raman scattering studies of isonicotinic acid at Au electrode
摘要
Abstract
With ultraviolet(UV,λ=325 nm)excitation,the surface enhanced Raman scattering(SERS)spectrum of isonicotinic acid adsorbed on the roughened Au electrode is recorded.In addition,the potential-dependent Raman spectra are also studied.According to the SERS selection rules,we deduce that the isonicotinic acid stand perpendicularly on gold surface via carboxylate group and with the varying of potential the adsorbed behavior of isonicotinic acid is invariant.Since the surface plasmon can not excite in the ultraviolet region on Au and the vibration frequencies of isonicotinic acid on the Au electrode are shifted 3～7 cm-1 with the negative shift of the electrode potential,so the charge transfer(CT)mechanism can probably explain the experiment results in the present work.关键词
表面增强拉曼散射(SERS)/吸附行为/异烟酸/Au电极Key words
surface-enhanced Raman scattering(SERS)/adsorption behavior/isonicotinic acid/goldelectrode分类
化学化工引用本文复制引用
张星,郝艳玲..异烟酸在Au电极上的紫外表面增强拉曼散射研究[J].西北师范大学学报（自然科学版）,2013,49(4):57-60,4.基金项目
贵州省教育厅自然科学研究基金资助项目(20090099) （20090099）
黔西南州科技局科技计划项目(2012-2) （2012-2）
兴义民族师范学院科研基金资助项目(11xyyz04) （11xyyz04）
