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Pham T, Goldstein AP, Lewicki JP, et al. Nanoscale structure and superhydrophobicity of sp(2)-bonded boron nitride aerogels. Nanoscale. 2015;7(23):10449-58doi: 10.1039/c5nr01672j.
Pham, T., Goldstein, A. P., Lewicki, J. P., Kucheyev, S. O., Wang, C., Russell, T. P., Worsley, M. A., Woo, L., Mickelson, W., & Zettl, A. (2015). Nanoscale structure and superhydrophobicity of sp(2)-bonded boron nitride aerogels. Nanoscale, 7(23), 10449-58. https://doi.org/10.1039/c5nr01672j
Pham, Thang, et al. "Nanoscale structure and superhydrophobicity of sp(2)-bonded boron nitride aerogels." Nanoscale vol. 7,23 (2015): 10449-58. doi: https://doi.org/10.1039/c5nr01672j
Pham T, Goldstein AP, Lewicki JP, Kucheyev SO, Wang C, Russell TP, Worsley MA, Woo L, Mickelson W, Zettl A. Nanoscale structure and superhydrophobicity of sp(2)-bonded boron nitride aerogels. Nanoscale. 2015 Jun 21;7(23):10449-58. doi: 10.1039/c5nr01672j. PMID: 26007693.
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Nanoscale. 2015 Jun 21;7(23):10449-58. doi: 10.1039/c5nr01672j.

Nanoscale structure and superhydrophobicity of sp(2)-bonded boron nitride aerogels.

Nanoscale

Thang Pham, Anna P Goldstein, James P Lewicki, Sergei O Kucheyev, Cheng Wang, Thomas P Russell, Marcus A Worsley, Leta Woo, William Mickelson, Alex Zettl

Affiliations

  1. Department of Physics, University of California at Berkeley, Berkeley, California 94720, USA.

PMID: 26007693 DOI: 10.1039/c5nr01672j

Abstract

Aerogels have much potential in both research and industrial applications due to their high surface area, low density, and fine pore size distribution. Here we report a thorough structural study of three-dimensional aerogels composed of highly crystalline sp(2)-bonded boron nitride (BN) layers synthesized by a carbothermic reduction process. The structure, crystallinity and bonding of the as-prepared BN aerogels are elucidated by X-ray diffraction, (11)B nuclear magnetic resonance, transmission electron microscopy, and resonant soft X-ray scattering. The macroscopic roughness of the aerogel's surface causes it to be superhydrophobic with a contact angle of ∼155° and exhibit high oil uptake capacity (up to 1500 wt%). The oil can be removed from the BN aerogel by oxidizing in air without damaging the crystalline porous structure of the aerogel or diminishing its oil absorption capacity.

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