Chemically delaminated free-standing ultrathin covalent organic nanosheets

TitleChemically delaminated free-standing ultrathin covalent organic nanosheets
Publication TypeJournal Article
Year of Publication2016
AuthorsM. Khayum, A, Kandambeth, S, Mitra, S, Nair, SB, Das, A, Nagane, SS, Mukherjee, R, Banerjee, R
JournalAngewandte Chemie-International Edition
Volume55
Issue50
Pagination15604-15608
Date PublishedDEC
Abstract

Covalent organic nanosheets (CONs) are a new class of porous thin two-dimensional (2D) nanostructures that can be easily designed and functionalized and could be useful for separation applications. Poor dispersion, layer restacking, and difficult postsynthetic modifications are the major hurdles that need to be overcome to fabricate scalable CON thin films. Herein, we present a unique approach for the chemical exfoliation of an anthracene-based covalent organic framework (COF) to N-hexylmaleimide-functionalized CONs, to yield centimeter-sized free-standing thin films through layer-by-layer CON assembly at the air-water interface. The thinlayer fabrication technique presented here is simple, scalable, and does not require any surfactants or stabilizing agents.

DOI10.1002/anie.201607812
Type of Journal (Indian or Foreign)

Foreign

Impact Factor (IF)

11.709

Divison category: 
Physical and Materials Chemistry