| 摘要 |
A method for the preparation of a monolayer of meso-scaled particles within a size range of one nanometer to several hundreds of microns. The method includes the steps of (A) providing a thin liquid film onto an external surface of a rotary member; (B) dispensing meso-scaled particles at a desired rate onto an external surface of the thin liquid film so as to position the particles at a gas-liquid interface; (C) forming a uniform monolayer of the particles on the gas-liquid interface; and (D) transferring the monolayer from the gas-liquid interface to a solid substrate. Monolayers of meso-scaled particles on solid surfaces are useful in many areas of science and technology, including functional coatings that modify the physical and chemical properties of the underlying surfaces. The method is particularly useful for the preparation of catalyzed proton exchange membranes for fuel cell applications.
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