Patent Number: 8,585,795

Title: Ceramic nanofibers for liquid or gas filtration and other high temperature (> 1000.degree. C.) applications

Abstract: In accordance with the invention there are devices and processes for making ceramic nanofiber mats and ceramic filters for use in high temperature and in corrosive environments. The process for forming a ceramic filter can include electrospinning a preceramic polymer solution into a preceramic polymer fiber having a diameter from about 10 nm to about 1 micron and forming a preceramic polymer fiber web from the preceramic polymer fiber onto a collector. The process can also include pyrolyzing the preceramic polymer fiber web to form a ceramic nanofiber mat having a diameter less than the diameter of the preceramic polymer fiber, the ceramic nanofiber mat comprising one or more of an oxide ceramic and a non-oxide ceramic such that the ceramic fiber mat can withstand temperature greater than about 1000 .degree. C.

Inventors: Sigmund; Wolfgang M. (Gainesville, FL), Maneeratana; Vasana (Gainesville, FL), Colombo; Paolo (Padua, IT), Wu; Chang-Yu (Gainesville, FL), Park; Hyoungjun (Gainesville, FL), Zhang; Qi (Gainesville, FL)

Assignee: Univesity of Florida Research Foundation, Inc.

International Classification: B01D 39/06 (20060101); B01D 24/00 (20060101); F16J 15/20 (20060101); B01D 39/14 (20060101); B32B 5/16 (20060101); B01D 50/00 (20060101); B32B 9/00 (20060101); D02G 3/00 (20060101)

Expiration Date: 1/19/12018