共查询到18条相似文献,搜索用时 234 毫秒
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一种探测光纤BSBS温敏效应的新方法黄民双(长沙铁道学院长沙410075)刘邦群(武汉大学物理学系武汉430072)ANewDetectionMethodofOpticalFiberThermalySensitiveEfectusingBSBSAbs... 相似文献
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用电化学现场表面增强拉曼光谱(SERS)研究了非水体系中苯并三唑(BTAH)在银电极表面的吸附及成膜行为,结果表明非水体系中BTAH的吸附行为随电位变化而不同。较负区间主要以中性分子形式吸附;中间电位区间主要以BTA-吸附并不可逆成膜。采用直接电化学合成技术模拟电极表面过程制备了苯并三唑与Cu, Ag, Fe, Ni和Zn等金属的配合物,并研究了中性配体三苯基膦(pph3)对其配位过程的影响,所得产物的元素分析以及拉曼光谱研究表明pph3的加入影响了Cu和Ag与BTAH的配位过程,并出现在最终产物中,而对BTAH与Ni, Fe和Zn的配位过程未产生影响,产物未出现pph3。 相似文献
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吡啶-碘电子转移复合物的表面增强拉曼光谱(SERS)研究马树国,吴国祯(清华大学物理系北京100084)TheSurfaceEnhancedRamanStudyofThechargeTransferComplexofPyridine-Iodineon... 相似文献
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W. Gu X. M. Fan J. L. Yao B. Ren R. A. Gu Z. Q. Tian 《Journal of Raman spectroscopy : JRS》2009,40(4):405-410
Roughened nickel electrode surfaces have been demonstrated to exhibit a moderate enhanced Raman scattering effect with an enhancing factor of about 104, which is not suitable in some cases for further inhibition adsorbates study. We reported here a new modified roughening procedure of nickel electrodes, by which a high S/N ratio surface‐enhanced Raman spectroscopy (SERS) of pyridine was obtained. At least two major advantages were found for the modified roughening methods: (1) enhancing factor was improved by a factor of about 10, (2) SERS‐active sites were distributed uniformly on the Ni surfaces. Potential‐dependent SERS spectra of a candidate inhibitor molecule benzotriazole (BTAH) adsorbed onto nickel electrodes were briefly presented for verifying the feasibility of the modified roughening method in this paper. Results showed that BTAH molecules were adsorbed on the nickel electrodes in neutral molecule form at more negative potentials and a polymer‐like film with the composition of [Nin(BTA)p]m formed on the nickel electrodes with the positive shift of potentials. Copyright © 2008 John Wiley & Sons, Ltd. 相似文献
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