| 摘要 |
A process for making high metal content stabilised metal nanoparticles, comprises reacting at least one metal acetylide with at least one amine or amine salt in the presence of a first solvent under reducing conditions to yield a metal colloid solution and then recovering metal nanoparticles as a precipitate by either evaporating the first solvent or adding a second solvent to the first solvent. The metal colloid solution obtainable as an intermediate by such a process and the high metal content stabilised metal nanoparticles obtainable as the final product of such a process are also disclosed. A process for making gold phenylacetylides, suitable for use as the at least one metal acetylide in the above process, is also disclosed. The process comprises reacting an aqueous solution of at least one gold salt with at least reducing agent in the presence of water to form a gold intermediate and then reacting the intermediate with a phenylacetylene in the presence of at least one alcohol and a de-protonating agent. |
