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Title: Aqueous density fractionation of nanocarbons from colliding-wave PBX9502 detonation soot

Abstract

The study of solid carbon (nanocarbon) nucleation and growth from detonating high explosives is limited because of the difficulty directly evaluating chemical reactions behind the shock front. Understanding the correlation between detonation conditions and nanocarbon formation requires isolation, purification, and analysis of the carbon products. Aqueous density fractionation of products recovered from a colliding wave TATB-based high explosive (PBX9502) detonation are evaluated as an environmentally benign, “green” chemical processing approach for the separation of carbon materials from metal and metal oxide byproducts. Recovery of material sufficient for X-ray scattering analysis was obtained in two fractions. X-ray scattering showed the less dense fraction (ρ < 1 g/cm3) contains hollow spherical core (davg = 27.8 nm) nanoparticles with a shell (thickness=3.6 nm) composed of predominately sp2 hybridized carbon. Particles contained within the dense fraction (ρ > 1 g/cm3) were a mixture of oblate spheroids (major axis length=43.8 nm and minor axis=2.9 nm) and small polydisperse solid spherical particles (davg = 2.4 nm) composed of both sp2 and sp3 bonded carbon with residual contamination from the brass detonators.

Authors:
 [1];  [1];  [2];  [3];  [1];  [1];  [1];  [1];  [4]
+ Show Author Affiliations
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); United States Naval Academy, Annapolis, MD (United States).
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); United States Air Force Academy, Colorado Springs, CO (United States)
  4. Argonne National Lab. (ANL), Argonne, IL (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Laboratory Directed Research and Development (LDRD) Program
OSTI Identifier:
1565883
Report Number(s):
LA-UR-17-28019
Journal ID: ISSN 0094-243X
Grant/Contract Number:  
89233218CNA000001
Resource Type:
Accepted Manuscript
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1979; Journal Issue: 1; Conference: Shock Compression of Condensed Matter - 2017, St. Louis, MO (United States), 9-14 July 2017; Journal ID: ISSN 0094-243X
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Firestone, Millicent A., Ringstrand, Bryan, Mogavero, Brian, Despard, J. Tyler, Kelso, Kwyntero, Gustavsen, Richard L., Dattelbaum, Dana M., Podlesak, David W., and Seifert, Sönke. Aqueous density fractionation of nanocarbons from colliding-wave PBX9502 detonation soot. United States: N. p., 2018. Web. doi:10.1063/1.5045007.
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Firestone, Millicent A., Ringstrand, Bryan, Mogavero, Brian, Despard, J. Tyler, Kelso, Kwyntero, Gustavsen, Richard L., Dattelbaum, Dana M., Podlesak, David W., & Seifert, Sönke. Aqueous density fractionation of nanocarbons from colliding-wave PBX9502 detonation soot. United States. doi:10.1063/1.5045007.
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Firestone, Millicent A., Ringstrand, Bryan, Mogavero, Brian, Despard, J. Tyler, Kelso, Kwyntero, Gustavsen, Richard L., Dattelbaum, Dana M., Podlesak, David W., and Seifert, Sönke. Tue . "Aqueous density fractionation of nanocarbons from colliding-wave PBX9502 detonation soot". United States. doi:10.1063/1.5045007. https://www.osti.gov/servlets/purl/1565883.
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@article{osti_1565883,
title = {Aqueous density fractionation of nanocarbons from colliding-wave PBX9502 detonation soot},
author = {Firestone, Millicent A. and Ringstrand, Bryan and Mogavero, Brian and Despard, J. Tyler and Kelso, Kwyntero and Gustavsen, Richard L. and Dattelbaum, Dana M. and Podlesak, David W. and Seifert, Sönke},
abstractNote = {The study of solid carbon (nanocarbon) nucleation and growth from detonating high explosives is limited because of the difficulty directly evaluating chemical reactions behind the shock front. Understanding the correlation between detonation conditions and nanocarbon formation requires isolation, purification, and analysis of the carbon products. Aqueous density fractionation of products recovered from a colliding wave TATB-based high explosive (PBX9502) detonation are evaluated as an environmentally benign, “green” chemical processing approach for the separation of carbon materials from metal and metal oxide byproducts. Recovery of material sufficient for X-ray scattering analysis was obtained in two fractions. X-ray scattering showed the less dense fraction (ρ < 1 g/cm3) contains hollow spherical core (davg = 27.8 nm) nanoparticles with a shell (thickness=3.6 nm) composed of predominately sp2 hybridized carbon. Particles contained within the dense fraction (ρ > 1 g/cm3) were a mixture of oblate spheroids (major axis length=43.8 nm and minor axis=2.9 nm) and small polydisperse solid spherical particles (davg = 2.4 nm) composed of both sp2 and sp3 bonded carbon with residual contamination from the brass detonators.},
doi = {10.1063/1.5045007},
journal = {AIP Conference Proceedings},
number = 1,
volume = 1979,
place = {United States},
year = {2018},
month = {7}
}
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DOI:  10.1063/1.5045007
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