Inelastic Neutron Scattering of H2 Adsorbed on Boron Substituted Single Walled Carbon Nanotubes

Y. Liu; C. M. Brown; J. L. Blackburn; D. A. Neumann; T. Gennett; L. Simpson; P. Parilla; A. C. Dillon; M. J. Heben

doi:10.1016/j.jallcom.2007.01.113

Inelastic Neutron Scattering of H2 Adsorbed on Boron Substituted Single Walled Carbon Nanotubes

Y. Liu, C. M. Brown, J. L. Blackburn, D. A. Neumann, T. Gennett, L. Simpson, P. Parilla, A. C. Dillon, M. J. Heben

Materials Science

Research output: Contribution to journal › Article › peer-review

17 Scopus Citations

Abstract

We report inelastic neutron scattering investigations of hydrogen adsorbed on both purified boron substituted (≤1%) single walled carbon nanotube bundles and purified single walled carbon nanotube bundles. Samples of both types were generated by both arc and laser production methods. At H₂ coverages ≤3 H₂/B, a clear splitting is observed for the H₂ rotation transition peak at about 14.7 meV in all arc-produced samples. In contrast, the spectra from laser-produced materials exhibit one broad peak. Further increase in H₂ coverage results in adsorption at lower binding energy sites. No distinct signature of an enhanced boron-hydrogen interaction is observed. However, the overall line width of the rotation transition peak from a laser-produced sample is substantially smaller than that from arc-prepared samples. This difference might imply that some features of the H₂ rotation transition peak might not be due to the intrinsic features of single wall carbon nanotubes.

Original language	American English
Pages (from-to)	368-372
Number of pages	5
Journal	Journal of Alloys and Compounds
Volume	446-447
DOIs	https://doi.org/10.1016/j.jallcom.2007.01.113 https://doi.org/10.1016/j.jallcom.2007.01.113
State	Published - 2007

NREL Publication Number

NREL/JA-590-42492

Keywords

Energy storage materials
Hydrogen storage materials
Nanostructured materials
Neutron scattering

Access to Document

Cite this

Liu, Y., Brown, C. M., Blackburn, J. L., Neumann, D. A., Gennett, T., Simpson, L., Parilla, P., Dillon, A. C., & Heben, M. J. (2007). Inelastic Neutron Scattering of H2 Adsorbed on Boron Substituted Single Walled Carbon Nanotubes. Journal of Alloys and Compounds, 446-447, 368-372. https://doi.org/10.1016/j.jallcom.2007.01.113, https://doi.org/10.1016/j.jallcom.2007.01.113

@article{251bae9585c7436389d573900265ba22,

title = "Inelastic Neutron Scattering of H2 Adsorbed on Boron Substituted Single Walled Carbon Nanotubes",

abstract = "We report inelastic neutron scattering investigations of hydrogen adsorbed on both purified boron substituted (≤1%) single walled carbon nanotube bundles and purified single walled carbon nanotube bundles. Samples of both types were generated by both arc and laser production methods. At H2 coverages ≤3 H2/B, a clear splitting is observed for the H2 rotation transition peak at about 14.7 meV in all arc-produced samples. In contrast, the spectra from laser-produced materials exhibit one broad peak. Further increase in H2 coverage results in adsorption at lower binding energy sites. No distinct signature of an enhanced boron-hydrogen interaction is observed. However, the overall line width of the rotation transition peak from a laser-produced sample is substantially smaller than that from arc-prepared samples. This difference might imply that some features of the H2 rotation transition peak might not be due to the intrinsic features of single wall carbon nanotubes.",

keywords = "Energy storage materials, Hydrogen storage materials, Nanostructured materials, Neutron scattering",

author = "Y. Liu and Brown, {C. M.} and Blackburn, {J. L.} and Neumann, {D. A.} and T. Gennett and L. Simpson and P. Parilla and Dillon, {A. C.} and Heben, {M. J.}",

year = "2007",

doi = "10.1016/j.jallcom.2007.01.113",

language = "American English",

volume = "446-447",

pages = "368--372",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Inelastic Neutron Scattering of H2 Adsorbed on Boron Substituted Single Walled Carbon Nanotubes

AU - Liu, Y.

AU - Brown, C. M.

AU - Blackburn, J. L.

AU - Neumann, D. A.

AU - Gennett, T.

AU - Simpson, L.

AU - Parilla, P.

AU - Dillon, A. C.

AU - Heben, M. J.

PY - 2007

Y1 - 2007

N2 - We report inelastic neutron scattering investigations of hydrogen adsorbed on both purified boron substituted (≤1%) single walled carbon nanotube bundles and purified single walled carbon nanotube bundles. Samples of both types were generated by both arc and laser production methods. At H2 coverages ≤3 H2/B, a clear splitting is observed for the H2 rotation transition peak at about 14.7 meV in all arc-produced samples. In contrast, the spectra from laser-produced materials exhibit one broad peak. Further increase in H2 coverage results in adsorption at lower binding energy sites. No distinct signature of an enhanced boron-hydrogen interaction is observed. However, the overall line width of the rotation transition peak from a laser-produced sample is substantially smaller than that from arc-prepared samples. This difference might imply that some features of the H2 rotation transition peak might not be due to the intrinsic features of single wall carbon nanotubes.

AB - We report inelastic neutron scattering investigations of hydrogen adsorbed on both purified boron substituted (≤1%) single walled carbon nanotube bundles and purified single walled carbon nanotube bundles. Samples of both types were generated by both arc and laser production methods. At H2 coverages ≤3 H2/B, a clear splitting is observed for the H2 rotation transition peak at about 14.7 meV in all arc-produced samples. In contrast, the spectra from laser-produced materials exhibit one broad peak. Further increase in H2 coverage results in adsorption at lower binding energy sites. No distinct signature of an enhanced boron-hydrogen interaction is observed. However, the overall line width of the rotation transition peak from a laser-produced sample is substantially smaller than that from arc-prepared samples. This difference might imply that some features of the H2 rotation transition peak might not be due to the intrinsic features of single wall carbon nanotubes.

KW - Energy storage materials

KW - Hydrogen storage materials

KW - Nanostructured materials

KW - Neutron scattering

UR - http://www.scopus.com/inward/record.url?scp=35148888762&partnerID=8YFLogxK

U2 - 10.1016/j.jallcom.2007.01.113

DO - 10.1016/j.jallcom.2007.01.113

M3 - Article

AN - SCOPUS:35148888762

SN - 0925-8388

VL - 446-447

SP - 368

EP - 372

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

Inelastic Neutron Scattering of H2 Adsorbed on Boron Substituted Single Walled Carbon Nanotubes

Abstract

NREL Publication Number

Keywords

Access to Document

Other files and links

Fingerprint

Cite this