title: Preferential elimination of thin single-walled carbon nanotubes by iron etching.
abstract: We report that iron particles-assisted etching can be applied to selectively remove single-walled carbon nanotubes (SWNTs) with diameters smaller than 1.2 nm via the catalytic hydrogenation of carbon in a film of SWNTs, which is proven by a Raman spectroscopy-based technique.
authors.affiliation: National Centre for Nanoscience and Technology, Beijing 100190, China.
authors.forename: Fang
authors.initials: F
authors.lastname: Yu
authors.forename: Haiqing
authors.initials: H
authors.lastname: Zhou
authors.forename: Huaichao
authors.initials: H
authors.lastname: Yang
authors.forename: Minjiang
authors.initials: M
authors.lastname: Chen
authors.forename: Gang
authors.initials: G
authors.lastname: Wang
authors.forename: Lianfeng
authors.initials: L
authors.lastname: Sun