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Direct evidence for solid-like hydrogen in a nanoporous carbon hydrogen storage material at supercritical temperatures

Research output: Contribution to journalJournal article

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Direct evidence for solid-like hydrogen in a nanoporous carbon hydrogen storage material at supercritical temperatures. / Ting, Valeska P.; Ramirez-Cuesta, Anibal J.; Bimbo, Nuno; Sharpe, Jessica E.; Noguera-Diaz, Antonio; Presser, Volker; Rudic, Svemir; Mays, Timothy J.

In: ACS Nano, Vol. 9, No. 8, 08.2015, p. 8249-8254.

Research output: Contribution to journalJournal article

Harvard

Ting, VP, Ramirez-Cuesta, AJ, Bimbo, N, Sharpe, JE, Noguera-Diaz, A, Presser, V, Rudic, S & Mays, TJ 2015, 'Direct evidence for solid-like hydrogen in a nanoporous carbon hydrogen storage material at supercritical temperatures', ACS Nano, vol. 9, no. 8, pp. 8249-8254. https://doi.org/10.1021/acsnano.5b02623

APA

Ting, V. P., Ramirez-Cuesta, A. J., Bimbo, N., Sharpe, J. E., Noguera-Diaz, A., Presser, V., Rudic, S., & Mays, T. J. (2015). Direct evidence for solid-like hydrogen in a nanoporous carbon hydrogen storage material at supercritical temperatures. ACS Nano, 9(8), 8249-8254. https://doi.org/10.1021/acsnano.5b02623

Vancouver

Author

Ting, Valeska P. ; Ramirez-Cuesta, Anibal J. ; Bimbo, Nuno ; Sharpe, Jessica E. ; Noguera-Diaz, Antonio ; Presser, Volker ; Rudic, Svemir ; Mays, Timothy J. / Direct evidence for solid-like hydrogen in a nanoporous carbon hydrogen storage material at supercritical temperatures. In: ACS Nano. 2015 ; Vol. 9, No. 8. pp. 8249-8254.

Bibtex

@article{f263135f919b4a18a0bf8ae5af960d6e,
title = "Direct evidence for solid-like hydrogen in a nanoporous carbon hydrogen storage material at supercritical temperatures",
abstract = "Here we report direct physical evidence that confinement of molecular hydrogen (H-2) in an optimized nanoporous carbon results in accumulation of hydrogen with characteristics commensurate with solid H2 at temperatures up to 67 K above the liquid vapor critical temperature of bulk H2. This extreme densification is attributed to confinement of 112 molecules in the optimally sized micropores, and occurs at pressures as low as 0.02 MPa. The quantities of contained, solid-like H2 increased with pressure and were directly evaluated using in situ inelastic neutron scattering and confirmed by analysis of gas sorption isotherms. The demonstration of the existence of solid-like H2 challenges the existing assumption that supercritical hydrogen confined in nanopores has an upper limit of liquid H2 density. Thus, this insight offers opportunities for the development of more accurate models for the evaluation and design of nanoporous materials for high capacity adsorptive hydrogen storage.",
keywords = "nanoporous materials, hydrogen storage, carbon, neutron scattering, METAL-ORGANIC FRAMEWORKS, INELASTIC NEUTRON-SCATTERING, CARBIDE-DERIVED CARBONS, H-2 ADSORPTION, POROUS CARBONS, PORE-SIZE, DIFFRACTION, NANOTUBES, PERFORMANCE, POROSITY",
author = "Ting, {Valeska P.} and Ramirez-Cuesta, {Anibal J.} and Nuno Bimbo and Sharpe, {Jessica E.} and Antonio Noguera-Diaz and Volker Presser and Svemir Rudic and Mays, {Timothy J.}",
year = "2015",
month = aug,
doi = "10.1021/acsnano.5b02623",
language = "English",
volume = "9",
pages = "8249--8254",
journal = "ACS Nano",
issn = "1936-0851",
publisher = "American Chemical Society",
number = "8",

}

RIS

TY - JOUR

T1 - Direct evidence for solid-like hydrogen in a nanoporous carbon hydrogen storage material at supercritical temperatures

AU - Ting, Valeska P.

AU - Ramirez-Cuesta, Anibal J.

AU - Bimbo, Nuno

AU - Sharpe, Jessica E.

AU - Noguera-Diaz, Antonio

AU - Presser, Volker

AU - Rudic, Svemir

AU - Mays, Timothy J.

PY - 2015/8

Y1 - 2015/8

N2 - Here we report direct physical evidence that confinement of molecular hydrogen (H-2) in an optimized nanoporous carbon results in accumulation of hydrogen with characteristics commensurate with solid H2 at temperatures up to 67 K above the liquid vapor critical temperature of bulk H2. This extreme densification is attributed to confinement of 112 molecules in the optimally sized micropores, and occurs at pressures as low as 0.02 MPa. The quantities of contained, solid-like H2 increased with pressure and were directly evaluated using in situ inelastic neutron scattering and confirmed by analysis of gas sorption isotherms. The demonstration of the existence of solid-like H2 challenges the existing assumption that supercritical hydrogen confined in nanopores has an upper limit of liquid H2 density. Thus, this insight offers opportunities for the development of more accurate models for the evaluation and design of nanoporous materials for high capacity adsorptive hydrogen storage.

AB - Here we report direct physical evidence that confinement of molecular hydrogen (H-2) in an optimized nanoporous carbon results in accumulation of hydrogen with characteristics commensurate with solid H2 at temperatures up to 67 K above the liquid vapor critical temperature of bulk H2. This extreme densification is attributed to confinement of 112 molecules in the optimally sized micropores, and occurs at pressures as low as 0.02 MPa. The quantities of contained, solid-like H2 increased with pressure and were directly evaluated using in situ inelastic neutron scattering and confirmed by analysis of gas sorption isotherms. The demonstration of the existence of solid-like H2 challenges the existing assumption that supercritical hydrogen confined in nanopores has an upper limit of liquid H2 density. Thus, this insight offers opportunities for the development of more accurate models for the evaluation and design of nanoporous materials for high capacity adsorptive hydrogen storage.

KW - nanoporous materials

KW - hydrogen storage

KW - carbon

KW - neutron scattering

KW - METAL-ORGANIC FRAMEWORKS

KW - INELASTIC NEUTRON-SCATTERING

KW - CARBIDE-DERIVED CARBONS

KW - H-2 ADSORPTION

KW - POROUS CARBONS

KW - PORE-SIZE

KW - DIFFRACTION

KW - NANOTUBES

KW - PERFORMANCE

KW - POROSITY

U2 - 10.1021/acsnano.5b02623

DO - 10.1021/acsnano.5b02623

M3 - Journal article

VL - 9

SP - 8249

EP - 8254

JO - ACS Nano

JF - ACS Nano

SN - 1936-0851

IS - 8

ER -