紫外拉曼光谱及其在催化研究中的应用

UV Raman Spectroscopy and Its Applications in Catalysis

本文介绍了紫外拉曼光谱及其在催化研究中的应用。研究内容包括积炭 ,担载型过渡金属氧化物 ,分子筛 ,杂原子分子筛中骨架杂原子的识别和有机物的单层分散等。由于避开荧光干扰和使用较短波长的激发线提高了拉曼光谱的灵敏度和信噪比 ,特别是利用拉曼共振效应 ,不但灵敏度大幅度提高 ,而且与紫外吸收相关的局部结构被选择地鉴别。紫外拉曼光谱拓宽了拉曼光谱在催化 ,生物化学和材料科学等领域的应用。

UV Raman spectroscopy and its applications in catalysis are introduced. UV Raman spectroscopy has been successfully applied to study a number of important problems in catalysis, such as coke deposition, supported transition metal oxides, zeolites, identification of framework metal atoms in zeolites and organic compounds dispersed on supports. UV Raman spectra with excellent signal-to-noise are obtained due to the lack of fluorescence interference at the shorter wavelengths of excitation. In addition, with the resonance Raman effect, not only is the sensitivity greatly enhanced, but also the local structural information on the UV-visible absorbing species can be definitively identified. The study shows that UV Raman spectroscopy can expand the range of Raman applications in catalysis, biological and material sciences.