Abstract
The present disclosure provides a series of new and improved porous polyamide aerogels derived from multifunctional aromatics that combine the high mechanical strength of aramids with the pore structure of aerogels. The polyamide aerogels have a hyperbranched structure, relatively low density, high porosity and may be derived from functionalized monomers having more aromatic groups than functional groups. The present disclosure also provides a new method for producing the porous polyamide aerogels by polymerizing an aromatic multifunctional carboxylic acid or a ferrocene multifunctional carboxylic acid with a polyfunctional aromatic isocyanate at moderate reaction conditions followed by drying with liquid CO2. Also disclosed are various methods of use of these polyamide aerogels in a variety of applications, particularly in the generation of various precious metal catalysts. Thus, monolithic nanoporous carbon-supported Fe, Au, Pt, Pd, Co, Ni, Ru, and Rh catalysts are disclosed herein, which are derived by pyrolysis and transmetalation via galvanic replacement of ferrocene-based polyamide aerogels.
Recommended Citation
N. Leventis et al., "Multifunctional Porous Aramids (Aerogels), Fabrication Thereof, and Catalytic Compositions Derived Therefrom," U.S. Patents, Mar 2017.
Department(s)
Chemistry
Patent Application Number
US14/969,650
Patent Number
US9593225B2
Document Type
Patent
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 2017 The Curators of the University of Missouri, All rights reserved.
Publication Date
14 Mar 2017
