title: Multifunctional Superelastic Foam-Like Boron Nitride Nanotubular Cellular-Network Architectures.
abstract: Construction of cellular architectures has been expected to enhance materials' mechanical tolerance and to stimulate and broaden their efficient utilizations in many potential fields. However, hitherto, there have been rather scarce developments in boron nitride (BN)-type cellular architectures because of well-known difficulties in the syntheses of BN-based structures. Herein, cellular-network multifunctional foams made of interconnective nanotubular hexagonal BN (h-BN) architectures are developed using carbothermal reduction-assisted in situ chemical vapor deposition conversion from N-doped tubular graphitic cellular foams. These ultralight, chemically inert, thermally stable, and robust-integrity (supporting about 25,000 times of their own weight) three-dimensional-BN foams exhibit a 98.5% porosity, remarkable shape recovery (even after cycling compressions with 90% deformations), excellent resistance to water intrusion, thermal diffusion stability, and high strength and stiffness. They remarkably reduce the coefficient of thermal expansion and dielectric constant of polymeric poly(methyl methacrylate) composites, greatly contribute to their thermal conductivity improvement, and effectively limit polymeric composite softening at elevated temperatures. The foams also demonstrate high-capacity adsorption-separation and removal ability for a wide range of oils and organic chemicals in oil/water systems and reliable recovery under their cycling usage as organic adsorbers. These created multifunctional foams should be valuable in many high-end practical applications.
authors.affiliation: National Institute for Materials Science (NIMS) and International Center for Materials Nanoarchitectonics (MANA) , Namiki 1, Tsukuba, Ibaraki 3050044, Japan.
authors.forename: Yanming
authors.identifier: 0000-0003-1061-229X
authors.initials: Y
authors.lastname: Xue
authors.affiliation: Research Institute of Unconventional Petroleum and Renewable Energy, China University of Petroleum (East China) , Qingdao 266580, P. R. China.
authors.forename: Pengcheng
authors.initials: P
authors.lastname: Dai
authors.affiliation: National Institute for Materials Science (NIMS) and International Center for Materials Nanoarchitectonics (MANA) , Namiki 1, Tsukuba, Ibaraki 3050044, Japan.
authors.forename: Min
authors.initials: M
authors.lastname: Zhou
authors.affiliation: Key Laboratory of Luminescence and Optical Information, Beijing Jiaotong University , Beijing 100044, P. R. China.
authors.forename: Xi
authors.initials: X
authors.lastname: Wang
authors.affiliation: National Institute for Materials Science (NIMS) and International Center for Materials Nanoarchitectonics (MANA) , Namiki 1, Tsukuba, Ibaraki 3050044, Japan.
authors.forename: Amir
authors.identifier: 0000-0001-5852-0808
authors.initials: A
authors.lastname: Pakdel
authors.affiliation: National Institute for Materials Science (NIMS) and International Center for Materials Nanoarchitectonics (MANA) , Namiki 1, Tsukuba, Ibaraki 3050044, Japan.
authors.forename: Chao
authors.initials: C
authors.lastname: Zhang
authors.affiliation: National Institute for Materials Science (NIMS) and International Center for Materials Nanoarchitectonics (MANA) , Namiki 1, Tsukuba, Ibaraki 3050044, Japan.
authors.forename: Qunhong
authors.initials: Q
authors.lastname: Weng
authors.affiliation: National Institute for Materials Science (NIMS) and International Center for Materials Nanoarchitectonics (MANA) , Namiki 1, Tsukuba, Ibaraki 3050044, Japan.
authors.forename: Toshiaki
authors.initials: T
authors.lastname: Takei
authors.affiliation: National Institute for Materials Science (NIMS) and International Center for Materials Nanoarchitectonics (MANA) , Namiki 1, Tsukuba, Ibaraki 3050044, Japan.
authors.forename: Xiuwei
authors.initials: X
authors.lastname: Fu
authors.affiliation: National University of Science and Technology "MISiS" , Leninsky Prospect 4, Moscow 119049, Russian Federation.
authors.forename: Zakhar I
authors.initials: ZI
authors.lastname: Popov
authors.affiliation: National University of Science and Technology "MISiS" , Leninsky Prospect 4, Moscow 119049, Russian Federation.
authors.forename: Pavel B
authors.initials: PB
authors.lastname: Sorokin
authors.affiliation: School of Materials Science and Engineering, Hebei University of Technology , Tianjin 300130, P. R. China.|Hebei Key Laboratory of Boron Nitride Micro- and Nano-Materials , Tianjin 300130, P. R. China.
authors.forename: Chengchun
authors.initials: C
authors.lastname: Tang
authors.affiliation: National Institute for Materials Science (NIMS) and International Center for Materials Nanoarchitectonics (MANA) , Namiki 1, Tsukuba, Ibaraki 3050044, Japan.
authors.forename: Kiyoshi
authors.initials: K
authors.lastname: Shimamura
authors.affiliation: National Institute for Materials Science (NIMS) and International Center for Materials Nanoarchitectonics (MANA) , Namiki 1, Tsukuba, Ibaraki 3050044, Japan.
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Bando
authors.affiliation: National Institute for Materials Science (NIMS) and International Center for Materials Nanoarchitectonics (MANA) , Namiki 1, Tsukuba, Ibaraki 3050044, Japan.
authors.forename: Dmitri
authors.initials: D
authors.lastname: Golberg
keywords: adsorption-separation purification; cellular-network foams; hexagonal boron nitride; polymeric composites; superelastic behavior