Covalently bonded three-dimensional carbon nanotube solids via boron induced nanojunctions

Daniel P. Hashim, Narayanan T. Narayanan, Jose M. Romo-Herrera, David A. Cullen, Myung Gwan Hahm, Peter Lezzi, Joseph R. Suttle, Doug Kelkhoff, E. Muñoz-Sandoval, Sabyasachi Ganguli, Ajit K. Roy, David Smith, Robert Vajtai, Bobby G. Sumpter, Vincent Meunier, Humberto Terrones, Mauricio Terrones, Pulickel M. Ajayan

Research output: Contribution to journalArticle

212 Scopus citations

Abstract

The establishment of covalent junctions between carbon nanotubes (CNTs) and the modification of their straight tubular morphology are two strategies needed to successfully synthesize nanotube-based three-dimensional (3D) frameworks exhibiting superior material properties. Engineering such 3D structures in scalable synthetic processes still remains a challenge. This work pioneers the bulk synthesis of 3D macroscale nanotube elastic solids directly via a boron-doping strategy during chemical vapour deposition, which influences the formation of atomic-scale "elbowg" junctions and nanotube covalent interconnections. Detailed elemental analysis revealed that the "elbowg" junctions are preferred sites for excess boron atoms, indicating the role of boron and curvature in the junction formation mechanism, in agreement with our first principle theoretical calculations. Exploiting this materialĝ€™s ultra-light weight, super-hydrophobicity, high porosity, thermal stability, and mechanical flexibility, the strongly oleophilic sponge-like solids are demonstrated as unique reusable sorbent scaffolds able to efficiently remove oil from contaminated seawater even after repeated use.

Original languageEnglish (US)
Article number363
JournalScientific reports
Volume2
DOIs
StatePublished - 2012

ASJC Scopus subject areas

  • General

Fingerprint Dive into the research topics of 'Covalently bonded three-dimensional carbon nanotube solids via boron induced nanojunctions'. Together they form a unique fingerprint.

  • Cite this

    Hashim, D. P., Narayanan, N. T., Romo-Herrera, J. M., Cullen, D. A., Hahm, M. G., Lezzi, P., Suttle, J. R., Kelkhoff, D., Muñoz-Sandoval, E., Ganguli, S., Roy, A. K., Smith, D., Vajtai, R., Sumpter, B. G., Meunier, V., Terrones, H., Terrones, M., & Ajayan, P. M. (2012). Covalently bonded three-dimensional carbon nanotube solids via boron induced nanojunctions. Scientific reports, 2, [363]. https://doi.org/10.1038/srep00363