| 摘要 |
A method to prepare a metallic nanoparticle dispersion comprising the steps of:
- forming a metallic precursor dispersion or solution by adding a metallic precursor to a dispersion medium comprising;
(a) a solvent according to Formula I, and
wherein
R 1 and R 2 represent an optionally substituted alkyl group,
R 1 and R 2 may form a ring,
(b) a carboxylic acid according to Formula II,
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ R-COOH€ƒ€ƒ€ƒ€ƒ€ƒFormula II
wherein
R is an optionally substituted C2-C7 alkyl, alkenyl or alkynyl group,
- reducing the metallic precursor with a reducing agent to form metallic nanoparticles,
- sedimenting the metallic nanoparticles to obtain a highly concentrated metallic nanoparticle dispersion comprising at least 15 wt % of metallic nanoparticles. |
