• Corpus ID: 220302643

Robust two-dimensional ice on graphene built from finite-length water molecular chains

@article{Han2020RobustTI,
  title={Robust two-dimensional ice on graphene built from finite-length water molecular chains},
  author={Sheng Han and Jiabin Qiao and Lingxiang Hou and Yi-Wen Liu and Yanwen Zhang and Zi-Han Guo and Long-jing Yin and Yafei Ren and Wei Ji and Lin He},
  journal={arXiv: Materials Science},
  year={2020}
}
Interfacial ice on graphene has attracted much attention because it is a model system to study two-dimensional (2D) ice structures on chemically inert substrates. While water-graphene interaction was usually assumed to be negligible, the structures of the 2D ice are believed to be not appreciably perturbed by the graphene substrate. Here we report atomic-resolved characterizations of an exotic 2D ice structure on graphene built from water molecular chains with finite lengths. Our experiments… 

Figures from this paper

References

SHOWING 1-10 OF 59 REFERENCES
No confinement needed: observation of a metastable hydrophobic wetting two-layer ice on graphene.
TLDR
The results show that the two-layer ice forms even at zero pressure at a single hydrophobic interface by maximizing the number of hydrogen bonds at the expense of adopting a nontetrahedral geometry with weakened hydrogen bonds.
Room-temperature molecular-resolution characterization of self-assembled organic monolayers on epitaxial graphene.
TLDR
The demonstration of robust, uniform organic functionalization of epitaxial graphene presents opportunities for graphene-based molecular electronics and sensors.
Square ice in graphene nanocapillaries
TLDR
High-resolution electron microscopy imaging of water locked between two graphene sheets is reported, an archetypal example of hydrophobic confinement, and shows that the nanoconfined water at room temperature forms ‘square ice’—a phase having symmetry qualitatively different from the conventional tetrahedral geometry of hydrogen bonding between water molecules.
Ordered water structure at hydrophobic graphite interfaces observed by 4D, ultrafast electron crystallography
TLDR
4D, ultrafast electron crystallography with atomic-scale spatial and temporal resolution is used for study of structure and dynamics of interfacial water assembly on a hydrophobic surface, finding vertically stacked bilayers on highly oriented pyrolytic graphite surface were determined to be ordered, contrary to the expectation that the strong hydrogen bonding of water on Hydrophobic surfaces would dominate with suppressed interfacial order.
Molecular self-assembly on graphene on SiO2 and h-BN substrates.
TLDR
Graphene on h-BN is an ideal substrate for the study of molecular self-assembly toward controlling the electronic properties of graphene by engineered potential landscapes.
Understanding controls on interfacial wetting at epitaxial graphene: Experiment and Theory
The interaction of interfacial water with graphitic carbon at the atomic scale is studied as a function of the hydrophobicity of epitaxial graphene. High resolution x-ray reflectivity shows that the
Polymorphism of Water in Two Dimensions
The structure of interfacial water is governed by a delicate interplay between water–substrate and water–water interactions. In order to identify the structure-determining factors of ordered
Atomic imaging of the edge structure and growth of a two-dimensional hexagonal ice
TLDR
It is shown that noncontact atomic-force microscopy with a CO-terminated tip enables real-space imaging of the edge structures of 2D bilayer hexagonal ice grown on a Au(111) surface and that armchair-type edges coexist with the zigzag edges usually observed in 2D hexagonal crystals.
Wetting transparency of graphene.
We report that graphene coatings do not significantly disrupt the intrinsic wetting behaviour of surfaces for which surface-water interactions are dominated by van der Waals forces. Our contact angle
Creating one-dimensional nanoscale periodic ripples in a continuous mosaic graphene monolayer.
TLDR
It is shown that one-dimensional (1D) periodic graphene ripples with wavelengths from 2 nm to tens of nanometers can be implemented in the intrinsic areas of a continuous mosaic (locally N-doped) graphene monolayer by simultaneously using both the thermal strain engineering and the anisotropic surface stress of the Cu substrate.
...
1
2
3
4
5
...