| 摘要 |
<p>The present invention relates to a method comprising the steps of:
a) mixing an acid with water thereby obtaining a first mixture,
b) mixing said first mixture with a water miscible alcohol, thereby obtaining a second mixture,
c) mixing a compound of general formula N(R 1 )(R 2 )(R 3 ) to said second mixture, thereby obtaining a third mixture,
d) waiting enough time for said third mixture to reach room temperature, e.g. from 10 to 15 minutes,
e) adding a titanium oxide precursor to said third mixture, thereby obtaining said solution,</p> |
