Electric field induced orientation-selective unzipping of zigzag carbon nanotubes upon oxidation
文献情報
Chi Chen, Ling Miao, Kui Xu, Jie Yao, Chenyang Li, Jianjun Jiang
The mechanism of electric field induced orientation-selective unzipping of carbon nanotubes into carbon nanoribbons upon oxidation is studied based on first-principles calculations. Under a controlled external electric field, the initial sparse O atoms are ordered to attack the transverse C–C bonds along a certain side of the carbon nanotube instead of a random site. In addition, the next O atoms tend to follow each initial O atom and stand on the adjacent transverse C–C bonds on this side, sequentially and automatically leading to a linear epoxy chain. Besides, it is noteworthy that an effortless O diffusion with reduced energy barriers allows the regular arrangement of an epoxy chain due to electron doping under a suitable electric field. An easier process for the unzipping of carbon nanotubes and longer graphene nanoribbons with smoother edges is expected under an external electric field.
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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.




