Ultrasmall single-layered NbSe₂ nanotubes flattened within a chemical-driven self-pressurized carbon nanotube.

ABSTRACT: Pressure can alter interatomic distances and its electrostatic interactions, exerting a profound modifying effect on electron orbitals and bonding patterns. Conventional pressure engineering relies on compressions from external sources, which raises significant challenge in precisely applying pressure on individual molecules and also consume substantial mechanical energy. Here we report ultrasmall single-layered NbSe₂ flat tubes (< 2.31 nm) created by self-pressurization during the deselenization of NbSe₃ within carbon nanotubes (CNTs). As the internal force (4-17 GPa) is three orders of magnitude larger than the shear strength between CNTs, the flat tube is locked to prevent slippage. Electrical transport measurements indicate that the large pressure within CNTs indu

SUBMITTER: Jiang Y 

PROVIDER: S-EPMC10784551 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature