Plasticity and fracture of monolayer graphene oxide sheets

Xiaoding Wei, Lily Mao, Rafael A. Soler-Crespo, Jeffrey T. Paci, Jiaxing Huang, Son Binh T. Nguyen, Horacio D. Espinosa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The ability to bias chemical reaction pathways in a particular molecule is a fundamental goal for chemists and material scientists to produce innovative materials. In this study, a novel mechanochemical phenomenon in suspended graphene oxide membranes, covalent epoxide-to-ether functional group transformations that deviate from classical epoxide ring opening reactions, was discovered by means of nanomechanical experiments and interpreted through density-functional tight-binding calculations. These novel mechanochemical transformations in a two-dimensional (2D) system were directionally dependent, occured at a stress of approximately 5.3 GPa or 4.0 N/m, and conferred pronounced plasticity and damage tolerance to suspended graphene oxide monolayers.

Original languageEnglish (US)
Title of host publicationICF 2017 - 14th International Conference on Fracture
EditorsEmmanuel E. Gdoutos
PublisherInternational Conference on Fracture
Pages859-860
Number of pages2
ISBN (Electronic)9780000000002
StatePublished - 2017
Event14th International Conference on Fracture, ICF 2017 - Rhodes, Greece
Duration: Jun 18 2017Jun 20 2017

Publication series

NameICF 2017 - 14th International Conference on Fracture
Volume1

Conference

Conference14th International Conference on Fracture, ICF 2017
CountryGreece
CityRhodes
Period6/18/176/20/17

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction

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