Premium
Reactive and Organosoluble SnO 2 Nanoparticles by a Surfactant‐Free Non‐Hydrolytic Sol–Gel Route
Author(s) -
Aboulaich Abdelhay,
Boury Bruno,
Mutin P. Hubert
Publication year - 2011
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201100391
Subject(s) - chemistry , pulmonary surfactant , nanoparticle , hydrolysis , diisopropyl ether , monolayer , ether , surface modification , wafer , polymer chemistry , chemical engineering , inorganic chemistry , organic chemistry , nanotechnology , biochemistry , materials science , engineering
Reactive SnO 2 nanoparticles have been successfully prepared by a simple non‐hydrolytic sol–gel synthesis in CH 2 Cl 2 at 110 °C by using SnCl 4 as a precursor and diisopropyl ether ( i Pr 2 O) as an oxygen donor. The SnO 2 nanocrystals, with a diameter of about 4 nm, formed stable sols in organic aprotic solvents in the absence of any surfactant or coordinating agent. The lack of aggregation has been attributed to the presence of Cl and O i Pr surface groups instead of OH groups. These surface groups render the nanoparticles reactive towards hydroxylated surfaces, as shown by their reaction with an oxidized silicon wafer; the nanoparticles bind uniformly across the wafer to form a monolayer.