Kinetic investigation of in situ growth of CdMoO_4 nano-octahedra

• 来源期刊: 科学通报(英文版)
• 学科: 工学
• 年，卷（期）: 2011,（3）
• 页码范围: 269-274
• 页数: 6页
• 分类号: TB383.1
• 语种: 中文

摘要

CdMoO4 nano-octahedra were grown in situ at room temperature by reverse-microemulsion.Energy evolution from this growth process was monitored using microcalorimetry.The microcalorimetric heat flow (MCHF) curve showed a characteristic endothermic peak for the initial reaction,and double discontinuous exothermic peaks for the subsequent crystal growth.Combined with complementary characterization techniques,the evolution of morphology and size of the CdMoO4 nano-octahedra were correlated with the MCHF peaks.Calculations based on the microcalorimetric results at 298.15 K provided rate constants of 7.56*10–5 s–1 for the reaction and nucleation process and 1.59*10–4 s–1 for the crystallization process.