Speciation in diethanolamine-moderated TiO2 precursor sols and their use in film formation
Speciation in diethanolamine-moderated TiO2 precursor sols and their use in film formation
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DOI：
10.1007/s10971-016-4032-1
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发表时间：
2016-09-01
影响因子：
2.5
通讯作者：
Levason, William
中科院分区：
文献类型：
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作者：
Al-Arjan, Wafa S.;Hector, Andrew L.;Levason, William
研究了二乙醇胺改性的Ti（（OPr）-Pr-i）（4）基溶胶在乙醇中制备的TiO 2薄膜和粉体的相行为。的金红石/金红石相的浓度随条件而变化，并与样品的酸催化溶胶以相同的方式使用，使薄膜和粉末。二乙醇胺在增加膜的光滑度和减少破裂方面是有效的，但当样品在600 A摄氏度下加热时也导致金红石形成。使用质谱和核磁光谱来询问溶液中存在的物质，其中发现特定的簇类型是突出的，并且显示二乙醇胺通过所有三个供体原子与钛配位。
The phase behaviour of TiO2 films and powders produced from Ti((OPr)-Pr-i)(4)-based sols in ethanol modified with diethanolamine is investigated. The anatase/rutile phase concentrations vary with conditions and are correlated with samples from an acid-catalysed sol used in the same way to make films and powders. Diethanolamine is effective in increasing smoothness of films and reducing cracking, but also results in rutile formation when samples are heated at 600 A degrees C. Mass spectrometry and nuclear magnetic spectroscopy were used to interrogate the species present in solution, where specific cluster types were found to be prominent and the diethanolamine was shown to coordinate with titanium via all three donor atoms.