Haiping XIA
,
Zhaoyang JIANG
,
Jianli ZHANG
,
Jinhao WANG
,
Yuepin ZHANG
,
Qiuhua NIE
材料科学技术（英文）
Water soluble fullerenols were synthesized and incorporated in SiO2, SiO2-TiO2, GPTMS- SiO2, GPTMS-ATPS inorganic and organic-inorganic materials by sol-gel processes. The maximum concentrations of C60 (OH) n and C70 (OH) n in the obtained SiO2 gels were estimated to be about 0.6% and 1.5% in weight, respectively. The characteristics of the UV/visible spectra of fullerenols in H2O and various gels were measured and compared. The thermal stability of fullerenols in gels was investigated with differential thermal analysis (DTA). The results indicate that the absorption features of fullerenols in solid gels are similar to those in H2O and the fullerenols in SiO2 are stable at 400ºC. The optical limiting effect of the fullerenols was investigated preliminarily.
关键词:
Water soluble fullerenol
,
null
,
null
,
null
李焕勇
,
介万奇
,
熊鹏
,
付红志
稀有金属材料与工程
在NiE(E=S,Se)纳米粒子辅助下,采用CVD方法,在NiE(E=S,Se)-Zn系统中成功生长出立方闪锌矿结构一维ZnE(E=S,Se)纳米线.生长的ZnSe和ZnS纳米线长度达几十微米,具有接近理想化学计量比的成分和较高的结晶质量.研究表明,ZnE纳米线生长过程中,ZnNi合金充作实际的催化剂,生长遵循氧化还原反应助VLS机理.基于此机理,通过调控NiE纳米粒子的尺寸可以有效控制ZnE纳米线的直径.
关键词:
Ⅱ-Ⅵ族化合物
,
纳米线
,
ZnS
,
ZnSe
,
VLS生长机制
