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

doi:10.1021/acs.nanolett.2c03911

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 journal › Article › peer-review

Abstract

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 language	English (US)
Pages (from-to)	1659-1665
Number of pages	7
Journal	Nano letters
Volume	23
Issue number	5
DOIs	https://doi.org/10.1021/acs.nanolett.2c03911
State	Published - Mar 8 2023

Keywords

chemical vapor deposition
graphene
interface mechanics
surface faceting

ASJC Scopus subject areas

General Chemistry
Condensed Matter Physics
Mechanical Engineering
Bioengineering
General Materials Science

Online availability

10.1021/acs.nanolett.2c03911

Library availability

Discover UIUC Full Text

Cite this

@article{93688f08121d4b6da7d292f19a687739,

title = "Strain-Driven Faceting of Graphene-Catalyst Interfaces",

abstract = "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.",

keywords = "chemical vapor deposition, graphene, interface mechanics, surface faceting",

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

note = "Publisher Copyright: {\textcopyright} 2023 American Chemical Society",

year = "2023",

month = mar,

day = "8",

doi = "10.1021/acs.nanolett.2c03911",

language = "English (US)",

volume = "23",

pages = "1659--1665",

journal = "Nano letters",

issn = "1530-6984",

publisher = "American Chemical Society",

number = "5",

}

TY - JOUR

T1 - Strain-Driven Faceting of Graphene-Catalyst Interfaces

AU - Surana, Mitisha

AU - Ananthakrishnan, Ganesh

AU - Poss, Matthew M.

AU - Yaacoub, Jad Jean

AU - Zhang, Kaihao

AU - Ahmed, Tusher

AU - Admal, Nikhil Chandra

AU - Pochet, Pascal

AU - Johnson, Harley T.

AU - Tawfick, Sameh

PY - 2023/3/8

Y1 - 2023/3/8

N2 - 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.

AB - 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.

KW - chemical vapor deposition

KW - graphene

KW - interface mechanics

KW - surface faceting

UR - http://www.scopus.com/inward/record.url?scp=85147887848&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85147887848&partnerID=8YFLogxK

U2 - 10.1021/acs.nanolett.2c03911

DO - 10.1021/acs.nanolett.2c03911

M3 - Article

C2 - 36745111

AN - SCOPUS:85147887848

SN - 1530-6984

VL - 23

SP - 1659

EP - 1665

JO - Nano letters

JF - Nano letters

IS - 5

ER -

Strain-Driven Faceting of Graphene-Catalyst Interfaces

Abstract

Keywords

ASJC Scopus subject areas

Online availability

Library availability

Related links

Fingerprint

Cite this