TY - JOUR
T1 - Investigation of interfacial interaction of graphene oxide and Ti3C2Tx (MXene) via atomic force microscopy
AU - Luo, Shaohong
AU - Alkhidir, Tamador
AU - Mohamed, Sharmarke
AU - Anwer, Shoaib
AU - Li, Baosong
AU - Fu, Jing
AU - Liao, Kin
AU - Chan, Vincent
N1 - Funding Information:
This research work is supported by internal research funding of Khalifa University of Science and Technology (KU) (CIRA-2018-16; CIRA-2018-02). The theoretical calculations were performed using the high performance computing clusters of Khalifa University and the authors would like to acknowledge the support of the research computing department.
Publisher Copyright:
© 2022 Elsevier B.V.
PY - 2023/1/30
Y1 - 2023/1/30
N2 - Understanding the interfacial mechanics of 2D heterointerfaces is a key factor to the design of various scaled devices based on 2D heterogeneous materials such as graphene oxide (GO) and MXenes. In this study, the adhesive interfacial interaction of GO-GO, Ti3C2Tx-GO, and Ti3C2Tx-Ti3C2Tx 2D materials were systematically studied with atomic force microscopy (AFM) by using GO- and Ti3C2Tx-wrapped tips and respective conjugating substrates. The adhesion energy of Ti3C2Tx-GO, Ti3C2Tx-Ti3C2Tx, and GO-GO interfaces are measured to be 412 ± 12, 404 ± 12, and 272 ± 1 mJ/m2, respectively. The interfacial adhesive property determined by AFM measurement is further verified by density functional theory (DFT) simulations. It is found that the charge density distribution at the interface arisen from the oxygen species of graphene is responsible to the enhancement of the adhesion energy of Ti3C2Tx-GO heterointerface.
AB - Understanding the interfacial mechanics of 2D heterointerfaces is a key factor to the design of various scaled devices based on 2D heterogeneous materials such as graphene oxide (GO) and MXenes. In this study, the adhesive interfacial interaction of GO-GO, Ti3C2Tx-GO, and Ti3C2Tx-Ti3C2Tx 2D materials were systematically studied with atomic force microscopy (AFM) by using GO- and Ti3C2Tx-wrapped tips and respective conjugating substrates. The adhesion energy of Ti3C2Tx-GO, Ti3C2Tx-Ti3C2Tx, and GO-GO interfaces are measured to be 412 ± 12, 404 ± 12, and 272 ± 1 mJ/m2, respectively. The interfacial adhesive property determined by AFM measurement is further verified by density functional theory (DFT) simulations. It is found that the charge density distribution at the interface arisen from the oxygen species of graphene is responsible to the enhancement of the adhesion energy of Ti3C2Tx-GO heterointerface.
KW - 2D materials
KW - Adhesive interaction
KW - Atomic force microscopy
KW - MXene
UR - http://www.scopus.com/inward/record.url?scp=85144033044&partnerID=8YFLogxK
U2 - 10.1016/j.apsusc.2022.155303
DO - 10.1016/j.apsusc.2022.155303
M3 - Article
AN - SCOPUS:85144033044
SN - 0169-4332
VL - 609
JO - Applied Surface Science
JF - Applied Surface Science
M1 - 155303
ER -