Plasticity and ductility in graphene oxide through a mechanochemically induced damage tolerance mechanism.

ABSTRACT: The ability to bias chemical reaction pathways is a fundamental goal for chemists and material scientists to produce innovative materials. Recently, two-dimensional materials have emerged as potential platforms for exploring novel mechanically activated chemical reactions. Here we report a mechanochemical phenomenon in graphene oxide membranes, covalent epoxide-to-ether functional group transformations that deviate from epoxide ring-opening reactions, discovered through nanomechanical experiments and density functional-based tight binding calculations. These mechanochemical transformations in a two-dimensional system are directionally dependent, and confer pronounced plasticity and damage tolerance to graphene oxide monolayers. Additional experiments on chemically modified graphene oxide m

SUBMITTER: Wei X 

PROVIDER: S-EPMC4560785 | biostudies-literature | 2015 Aug

REPOSITORIES: biostudies-literature