Preparation of Modified Organic Core Materials and Metallic Shell Composite Microspheres

摘要

The present invention relates to a preparation of modified organic core materials and metallic shell composite microspheres, in which, the surface zeta potential of an organic core materials can attract the opposite zeta potential of the polyelectrolyte and form a polyelectrolyte layer so as to modify the surface of organic core materials. Moreover, the polyelectrolyte layer could attract a first metal ions, particles or complexes added later in suitable condition such that the surface of organic core materials could be metallized and covered with a first metal layer. Furthermore, the organic core materials could be covered with at least one surface metal layer. The first metal layer can be modified by second metal layer with redox-transmetalation® technology to obtain multi-metal layers organic-metallic composite structure.

主权项

1. A preparation of modified organic core materials and metallic shell composite microspheres, comprising steps of:
(1) adding an organic substrate 1 into a solvent to obtain a slurry; (2) adding a first polyelectrolyte 2 into the slurry, wherein the zeta potential of the first polyelectrolyte 2 is opposite to the surface zeta potential of the organic substrate 1; (3) adding a second polyelectrolyte 3 into the slurry, wherein the zeta potential of the second polyelectrolyte 3 is opposite to the zeta potential of the first polyelectrolyte 2; (4) adding a first metal compound 4 into the slurry; and (5) adding a reductant 5 into the slurry for making the first metal compound 4 be metalized, so as to form a first metal layer 6 on the surface of the organic substrate 1.