title: 2D Metals by Repeated Size Reduction.
abstract: A general and convenient strategy for manufacturing freestanding metal nanolayers is developed on large scale. By the simple process of repeatedly folding and calendering stacked metal sheets followed by chemical etching, free-standing 2D metal (e.g., Ag, Au, Fe, Cu, and Ni) nanosheets are obtained with thicknesses as small as 1 nm and with sizes of the order of several micrometers.
authors.affiliation: State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China.
authors.forename: Hanwen
authors.initials: H
authors.lastname: Liu
authors.affiliation: School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, China.
authors.forename: Hao
authors.initials: H
authors.lastname: Tang
authors.affiliation: School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, China.
authors.forename: Minghao
authors.initials: M
authors.lastname: Fang
authors.affiliation: State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China.
authors.forename: Wenjie
authors.initials: W
authors.lastname: Si
authors.affiliation: Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China.
authors.forename: Qinghua
authors.initials: Q
authors.lastname: Zhang
authors.affiliation: School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, China.
authors.forename: Zhaohui
authors.initials: Z
authors.lastname: Huang
authors.affiliation: Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China.
authors.forename: Lin
authors.initials: L
authors.lastname: Gu
authors.affiliation: State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Pan
authors.affiliation: Department of Materials Science and Engineering, University of California, Berkeley, CA, 94720, USA.
authors.forename: Jie
authors.initials: J
authors.lastname: Yao
authors.affiliation: State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China.
authors.forename: Cewen
authors.initials: C
authors.lastname: Nan
authors.affiliation: State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China. huiwu@tsinghua.edu.cn.
authors.forename: Hui
authors.initials: H
authors.lastname: Wu
keywords: 2D metals; mass-production; nanosheets; size reduction