Patent ID: 7241399
Filing Date: 2007-07-10
Classification: B82Y,C09D,C09K,G01N,Y10T

Abstract:
1. A method for synthesizing metal salt nanoparticles containing an anion comprising phosphates, halophosphates, arsenates, sulphates, germanates, vanadates, tantalates, tungstenates, molybdates, alkalihalogenates, or other halides, said method comprising: a) preparing a synthesis mixture, at least from aa) one organic component coordinating solvent controlling the crystal growth of the nanoparticles, which comprises phosphororganic compounds, monoalkylamines or dialkylamines, and a solvent for the organic component controlling the crystal growth, bb) a cation starting material which serves as cation source in the synthesis mixture, and cc) an anion starting material that serves as anion source, which comprises: aaa) free acids of the salts of the particular metal salt nanoparticles which are to be prepared, or bbb) salts, or ccc) organic compounds which release the anion at the synthesis temperature, and b) reacting the synthesis mixture until said nanoparticles have formed.