吉首大学学报（自然科学版）2016，Vol.37Issue(4)：11-13,18,4.DOI:10.3969/j.cnki.jdxb.2016.04.003
纳米 CeO2键弛豫动力学的计量拉曼谱分析
Quantitative Raman Spectrum Analysis of Nanoparticle CeO2 Bond Relaxation
摘要
Abstract
The atomic structure and bond relaxation of Nanoparticle CeO 2 determine its applications .From the perspective of chemical bonds relaxation and vibration ,and with phonons spectroscopy measurement technique ,the physical mechanism of the Raman spectrum pressure effect is explored .Based on the theo‐ry of bond relaxation ,the Raman spectrum pressure effect of nanoparticle CeO 2 is quantitatively ana‐lyzed .The functional relationship between phonon spectrum and pressure is established .At the same time ,the bulk modulus and compressibility coefficient are evaluated .The physical causes of Raman fre‐quency‐shift and blue‐shift of CeO2 are explored ,and it is found that pressure increase prompts contrac‐tion of bond length and bond energy enhancement leads to blue‐shift of Raman spectrum .关键词
CeO2/拉曼光谱/压强/蓝移Key words
CeO2/Raman spectrum/pressure/blue-shift分类
化学化工引用本文复制引用
杨学弦,杨红,廖文虎,叶伏秋,彭金璋,李丽华..纳米 CeO2键弛豫动力学的计量拉曼谱分析[J].吉首大学学报（自然科学版）,2016,37(4):11-13,18,4.基金项目
湖南省自然科学基金资助项目（2015JJ6094）；湖南省教育厅科学研究项目（15B189，14C0939）；吉首大学引进人员科研资助经费研究项目 （）
