Elastic Aerogels of Cellulose Nanofibers@Metal-Organic Frameworks for Thermal Insulation and Fire Retardancy.

ABSTRACT: Metal-organic frameworks (MOFs) with high microporosity and relatively high thermal stability are potential thermal insulation and flame-retardant materials. However, the difficulties in processing and shaping MOFs have largely hampered their applications in these areas. This study outlines the fabrication of hybrid CNF@MOF aerogels by a stepwise assembly approach involving the coating and cross-linking of cellulose nanofibers (CNFs) with continuous nanolayers of MOFs. The cross-linking gives the aerogels high mechanical strength but superelasticity (80% maximum recoverable strain, high specific compression modulus of ~ 200 MPa cm³ g^-1, and specific stress of ~ 100 MPa cm³ g^-1). The resultant lightweight aerogels have a cellular network structure

SUBMITTER: Zhou S 

PROVIDER: S-EPMC7770683 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature