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Nanolithography of the nanocorral structure of chemisorbed oxygen atoms on the graphitic lattice
Related publications (43)
Mechanistic study on the evolution of vacancies in graphene by oxidation by scanning tunneling microscopy
Nanostructured graphitic materials, including graphene hosting Å to nanometer-sized pores, have attracted attention for various applications such as separations, sensors, and energy storage. Graphene with Å-scale pores is a promising next-generation materi ...
EPFL2023A versatile platform for graphene nanoribbon synthesis, electronic decoupling, and spin polarized measurements
Johannes Schwenk, Donat Fabian Natterer
The on-surface synthesis of nano-graphenes has led the charge in prototyping structures with perspectives beyond silicon-based technology. Following reports of open-shell systems in graphene-nanoribbons (GNRs), a flurry of research activity was directed at ...
ROYAL SOC CHEMISTRY2023In-situ atomic level observation of the strain response of graphene lattice
Strain is inevitable in two-dimensional (2D) materials, regardless of whether the film is suspended or supported. However, the direct measurement of strain response at the atomic scale is challenging due to the difficulties of maintaining both flexibility ...
NATURE PORTFOLIO2023Three-dimensional ab initio description of vibration-assisted electron knock-on displacements in graphene
Transmission electron microscopy characterization may damage materials, but an electron beam can also induce interesting dynamics. Elastic knock-on is the main electron irradiation damage mechanism in metals including graphene, and although atomic vibratio ...
AMER PHYSICAL SOC2022Single Skyrmion Generation via a Vertical Nanocontact in a 2D Magnet-Based Heterostructure
Klaus Kern, Marko Burghard, Lukas Powalla
Skyrmions have been well studied in chiral magnets and magnetic thin films due to their potential application in practical devices. Recently, monochiral skyrmions have been observed in twodimensional van der Waals magnets. Their atomically flat surfaces an ...
AMER CHEMICAL SOC2022Atomic-scale insights into the origin of rectangular lattice in nanographene probed by scanning tunneling microscopy
We conducted atomic-scale scanning tunneling microscopy of a graphene nanosheet on graphite. In addition to a rhombus lattice representing the (root 3x root 3)R30 degrees superstructure, we resolved another quadrangle lattice similar to a rectangle in the ...
AMER PHYSICAL SOC2021Etching nanopores in single-layer graphene with a sub-angstrom resolution in molecular sieving
Single-layer graphene (SLG) membranes, hosting molecular-sieving nanopores have been regarded as the ultimate gas separation membranes, attributing to the fact that they are the thinnest possible molecular barrier. However, the expected attractive performa ...
EPFL2021Systematic design of millisecond gasification reactor for the incorporation of gas-sieving nanopores in single-layer graphene
Kumar Varoon Agrawal, Kuang-Jung Hsu, Luis Francisco Villalobos Vazquez de la Parra, Shiqi Huang, Shaoxian Li
Etching an ensemble of vacancy defects (nanopores) in single-layer graphene (SLG) to obtain a high density of nanopores with an effective size that enables high-performance gas sieving is challenging. This is because nanopore nucleation and expansion are u ...
2021Emergence of Potential-Controlled Cu-Nanocuboids and Graphene-Covered Cu-Nanocuboids under Operando CO2 Electroreduction
Magalí Alejandra Lingenfelder, Fernando Pablo Cometto, Karla Banjac, Thanh Hai Phan
The electroreduction of CO2 (CO2RR) is a promising strategy toward sustainable fuels. Cu is the only Earth-abundant and pure metal capable of catalyzing CO2-to-hydrocarbons conversion with significant Faradaic efficiencies; yet, its dynamic structure under ...
AMER CHEMICAL SOC2021Edge Disorder in Bottom-Up Zigzag Graphene Nanoribbons: Implications for Magnetism and Quantum Electronic Transport
Oleg Yazyev, Kristians Cernevics, Michele Pizzochero
We unveil the nature of the structural disorder in bottom-up zigzag graphene nanoribbons along with its effect on the magnetism and electronic transport on the basis of scanning probe microscopies and first-principles calculations. We find that edge-missin ...
AMER CHEMICAL SOC2021