摘要
以天然粘土矿物钙基累托石(Ca-REC)为载体和模板,采用化学沉积法制备了Ca-REC/Cu2O纳米复合材料,并进行了SEM、XRD表征,探讨了复合材料的合成机理。结果表明,复合材料中Ca-REC层间微结构发生了变化,Cu2O的晶格常数随负载后晶体粒径的减小而减小,Cu2O的内应力和表面张力由于复合也发生了变化;无分散剂、高Cu2+浓度和强超声频率有利于复合材料的结晶生长和粒径的控制。
With clay rectorite as carrier and based template, the Ca-REC/Cu2O nanocomposites have been pre- pared by chemical deposition. The properties of the nanocomposites have been examined by XRD and SEM. The results indicate that the microstructure of Ca-REC has changed. The lattice constant of crystal Cu2O became smaller as the particle size of the Cu2O got smaller, indicating that the internal stress and surface tension of Cu2O changed. At the same time, none dispersant agents, high concentration of Cu2＋ and strong ultrasonic frequency are beneficial to crystallization growth and particle size controlling.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2011年第2期104-106,111,共4页
Materials Reports
基金
国家自然科学基金(50804035)
湖北省自然科学基金(2008CDB375)
武汉市青年科技晨光计划基金(200950431194)
武汉工程大学青年基金(Q0806)
