公开(公告)号：CA2493243A1

公开(公告)日：2004-01-29

申请号：CA2493243

申请日：2003-07-22

Applicant: ASPEN AEROGELS INC

Inventor： WANG JING ,  BEGAG REDOUANE ,  RHINE WENDALL

IPC: B01J13/00 ,  C08G73/10 ,  C08J9/28 ,  H01M4/90

Abstract: A preparation process of polyimide aerogels that composed of aromatic dianhydrides and aromatic diamines or a combined aromatic and aliphatic diamines is described. Also descried is a process to produce carbon aerogels derived from polyimide aerogel composed of a rigid aromatic diamine and an aromatic dianhydride. Finally, the processes to produce carbon aerogels or xerogel-aerogel hybrid, both of which impregnated with highly dispersed transition metal clusters, and metal carbide aerogels, deriving from the polyimide aerogels composed of a rigid aromatic diamine and an aromatic dianhydride, are described. The polyimide aerogels and the polyimide aerogel derivatives consist of interconnecting mesopores with average pore size at 1 0 to 30 nm and a mono-dispersed pore size distribution. The gel density could be as low as 0.008 g/cc and accessible surface area as high as1300 m2/g.

公开(公告)号：DK1523512T3

公开(公告)日：2020-03-30

申请号：DK03766016

申请日：2003-07-22

Applicant: ASPEN AEROGELS INC

Inventor： WANG JING ,  RHINE WENDALL ,  BEGAG REDOUANE

IPC: C08G73/10 ,  B01J13/00 ,  C08J9/28 ,  H01M4/90