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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2000, Vol. 1 Issue (2): 178-183    DOI: 10.1631/jzus.2000.0178
Science & Engineering     
DISTORTION OF CRYSTAL LATTICE AND ABNORMAL INFRA-RED BEHAVIOR IN NANOCRYSTALLINE CaCO3
YUE Lin-hai, SHUI Miao, XU Zhu-de
Department of Chemistry, Yuquan Campus of Zhejiang University, Hangzhou, 310027, China
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Abstract  In this study, the structure of nanocrystalline CaCO3 was analyzed using TEM, SEM, FT-IR and XRD measurements. An unusually narrow v3 band with remarkable blue shift about 40 cm-1 in the infrared spectrum was observed. XRD analysis revealed a somewhat large crystallite strain in the nano-particle CaCO3. The strain was possibly related to the weakened lattice vibration. This suggests a preliminary explanation for the abnormal IR assimilation characteristics of nanocrystalline CaCO3 aforementioned.

Key words： nanocrystalline calcite      distortion of crystal lattice      infrared behavior     
Received: 18 December 1998     
CLC:  TQ115  
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YUE Lin-hai
SHUI Miao
XU Zhu-de
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YUE Lin-hai, SHUI Miao, XU Zhu-de. DISTORTION OF CRYSTAL LATTICE AND ABNORMAL INFRA-RED BEHAVIOR IN NANOCRYSTALLINE CaCO3. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2000, 1(2): 178-183.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2000.0178     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2000/V1/I2/178

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