Strain-Driven Faceting of Graphene-Catalyst Interfaces

Mitisha Surana, Ganesh Ananthakrishnan, Matthew M. Poss, Jad Jean Yaacoub, Kaihao Zhang, Tusher Ahmed, Nikhil Chandra Admal, Pascal Pochet, Harley T. Johnson, Sameh Tawfick

Research output: Contribution to journalArticlepeer-review


The interfacial interaction of 2D materials with the substrate leads to striking surface faceting affecting its electronic properties. Here, we quantitatively study the orientation-dependent facet topographies observed on the catalyst under graphene using electron backscatter diffraction and atomic force microscopy. The original flat catalyst surface transforms into two facets: a low-energy low-index surface, e.g. (111), and a vicinal (high-index) surface. The critical role of graphene strain, besides anisotropic interfacial energy, in forming the observed topographies is revealed by molecular simulations. These insights are applicable to other 2D/3D heterostructures.

Original languageEnglish (US)
Pages (from-to)1659-1665
Number of pages7
JournalNano letters
Issue number5
StatePublished - Mar 8 2023


  • chemical vapor deposition
  • graphene
  • interface mechanics
  • surface faceting

ASJC Scopus subject areas

  • General Chemistry
  • Condensed Matter Physics
  • Mechanical Engineering
  • Bioengineering
  • General Materials Science


Dive into the research topics of 'Strain-Driven Faceting of Graphene-Catalyst Interfaces'. Together they form a unique fingerprint.

Cite this