摘要
利用Ｘ射线光电子能谱（ＸＰＳ）和核磁共振（ＮＭＲ）研究了ＢａＯＳｉＯ２Ｂ２Ｏ３ＴｉＯ２系统玻璃。结果表明该系统玻璃中Ｔｉ４＋的配位数以［ＴｉＯ４］为主。根据其Ｔｉ２ｐ电子结合能值的变化可认为：随ＴｉＯ２含量的增加，［ＴｉＯ４］有向［ＴｉＯ６］转变的趋势。这种转变发生在ＴｉＯ２摩尔分数约为２０％处。ＮＭＲ研究结果显示玻璃样品中，随ＴｉＯ２和Ｂ２Ｏ３含量的增加四配位硼所占的比例Ｎ４值下降，且玻璃中Ｔｉ４＋形成四配位的能力大于Ｂ３＋。
BaOSiO_2B_2O_3TiO_2 glasses were experimentally studied by XPS and NMR. The results showed that the Ti~4+ mainly existed in the .[TiO4] had the tendency to change to when the mole content of TiO_2 increased to about 20%, according to the altering of binding energy value of Ti2p. NMR results also showed that the proportion of four coordination number boron decreased due to the increasing of TiO_2 and B_2O_3 content; and the ability of Ti^4+ to form four coordination number was stronger than that of B^3+ in the glasses.
出处
《北京化工大学学报（自然科学版）》
CAS
CSCD
1998年第1期6-11,共6页
Journal of Beijing University of Chemical Technology(Natural Science Edition)
关键词
钛钡硼
硅酸盐玻璃
玻璃
结构
钡
硼
XPS
NMR
titanium barium boronsilicate glasses
structure of glasses
TiO_2
B_2O_3
X-ray photoelectron spectroscopy
nuclear magnetic resonance
