Modulating Directional Movement of Graphene Nanoflake Using a Channel
The graphene-based nano-mechanical systems have attracted a lot of attention due to their unique properties. Owing to its planar shape, it is hard to control the direction of motion of graphene. In this study, a directional system based on graphene with a channel driven by a thermal gradient was exa...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-12-01
|
| Series: | Crystals |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4352/12/12/1830 |
| _version_ | 1797460767351504896 |
|---|---|
| author | Rui Li Ben An Jiahao Liu Qing Peng |
| author_facet | Rui Li Ben An Jiahao Liu Qing Peng |
| author_sort | Rui Li |
| collection | DOAJ |
| description | The graphene-based nano-mechanical systems have attracted a lot of attention due to their unique properties. Owing to its planar shape, it is hard to control the direction of motion of graphene. In this study, a directional system based on graphene with a channel driven by a thermal gradient was examined by means of molecular dynamics simulations. The results showed that the channel could direct the motion and correct the rotation of graphene nanoflakes. The movement of graphene nanoflake not only depended on the interaction between the nanoflake and the substrate, but also the configuration of the graphene in the channel. A larger thermal gradient was needed to drive a hydrogen-passivated graphene nanoflake. However, the movement of a passivated nanoflake was more stable. Our results showed that a passivated graphene nanoflake could move steadily along a direction in a channel, which might shed light on the design of nano-mechanical systems based on graphene. |
| first_indexed | 2024-03-09T17:09:44Z |
| format | Article |
| id | doaj.art-c636fdea33094eefa56af424be2eff64 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-09T17:09:44Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-c636fdea33094eefa56af424be2eff642023-11-24T14:11:43ZengMDPI AGCrystals2073-43522022-12-011212183010.3390/cryst12121830Modulating Directional Movement of Graphene Nanoflake Using a ChannelRui Li0Ben An1Jiahao Liu2Qing Peng3School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaSchool of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaSchool of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaPhysics Department, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi ArabiaThe graphene-based nano-mechanical systems have attracted a lot of attention due to their unique properties. Owing to its planar shape, it is hard to control the direction of motion of graphene. In this study, a directional system based on graphene with a channel driven by a thermal gradient was examined by means of molecular dynamics simulations. The results showed that the channel could direct the motion and correct the rotation of graphene nanoflakes. The movement of graphene nanoflake not only depended on the interaction between the nanoflake and the substrate, but also the configuration of the graphene in the channel. A larger thermal gradient was needed to drive a hydrogen-passivated graphene nanoflake. However, the movement of a passivated nanoflake was more stable. Our results showed that a passivated graphene nanoflake could move steadily along a direction in a channel, which might shed light on the design of nano-mechanical systems based on graphene.https://www.mdpi.com/2073-4352/12/12/1830graphenemotionthermal gradientchannelmolecular dynamics |
| spellingShingle | Rui Li Ben An Jiahao Liu Qing Peng Modulating Directional Movement of Graphene Nanoflake Using a Channel Crystals graphene motion thermal gradient channel molecular dynamics |
| title | Modulating Directional Movement of Graphene Nanoflake Using a Channel |
| title_full | Modulating Directional Movement of Graphene Nanoflake Using a Channel |
| title_fullStr | Modulating Directional Movement of Graphene Nanoflake Using a Channel |
| title_full_unstemmed | Modulating Directional Movement of Graphene Nanoflake Using a Channel |
| title_short | Modulating Directional Movement of Graphene Nanoflake Using a Channel |
| title_sort | modulating directional movement of graphene nanoflake using a channel |
| topic | graphene motion thermal gradient channel molecular dynamics |
| url | https://www.mdpi.com/2073-4352/12/12/1830 |
| work_keys_str_mv | AT ruili modulatingdirectionalmovementofgraphenenanoflakeusingachannel AT benan modulatingdirectionalmovementofgraphenenanoflakeusingachannel AT jiahaoliu modulatingdirectionalmovementofgraphenenanoflakeusingachannel AT qingpeng modulatingdirectionalmovementofgraphenenanoflakeusingachannel |