Patent ID: 6984369
Filing Date: 2006-01-10
Classification: B82Y,C01B,C01G,C01P,C09C

Abstract:
1. A process for making dispersable surfactant capped nanocrystals of metal oxides which comprises: (a) mixing a solution of a metal cupferron precursor complex of the formula M X Cup X , wherein M X is a metal ion in the oxidation state X selected from the group consisting of elements in Group 2, Group 3-12 of the 4 th period, Group 3-6 of the 5 th and 6 th period, Group 10-12 of the 5 th period, Group 12 of the 6 th . Groups 13 to 15, and the Lanthanide and Actinide series of the periodic table, and X is a number between 1 and 4, and Cup is a N-substituted N-nitroso hydroxylamine, with a coordinating surfactant, and (b) heating the mixture at a temperature and for a sufficient period of time to cause thermal decomposition of the M X Cup X precursor and formation of the nanocrystals.