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    Rights statement: This document is the Accepted Manuscript version of a Published Work that appeared in final form in Chemistry of Materials, copyright © 2015 American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://pubs.acs.org/doi/10.1021/acs.chemmater.5b03216

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New insights into the structure of nanoporous carbons from NMR, Raman, and pair distribution function analysis

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New insights into the structure of nanoporous carbons from NMR, Raman, and pair distribution function analysis. / Forse, Alexander C.; Merlet, Celine; Allan, Phoebe K. et al.

In: Chemistry of Materials, Vol. 27, No. 19, 13.10.2015, p. 6848-6857.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

Forse, AC, Merlet, C, Allan, PK, Humphreys, EK, Griffin, JM, Aslan, M, Zeiger, M, Presser, V, Gogotsi, Y & Grey, CP 2015, 'New insights into the structure of nanoporous carbons from NMR, Raman, and pair distribution function analysis', Chemistry of Materials, vol. 27, no. 19, pp. 6848-6857. https://doi.org/10.1021/acs.chemmater.5b03216

APA

Forse, A. C., Merlet, C., Allan, P. K., Humphreys, E. K., Griffin, J. M., Aslan, M., Zeiger, M., Presser, V., Gogotsi, Y., & Grey, C. P. (2015). New insights into the structure of nanoporous carbons from NMR, Raman, and pair distribution function analysis. Chemistry of Materials, 27(19), 6848-6857. https://doi.org/10.1021/acs.chemmater.5b03216

Vancouver

Forse AC, Merlet C, Allan PK, Humphreys EK, Griffin JM, Aslan M et al. New insights into the structure of nanoporous carbons from NMR, Raman, and pair distribution function analysis. Chemistry of Materials. 2015 Oct 13;27(19):6848-6857. Epub 2015 Oct 2. doi: 10.1021/acs.chemmater.5b03216

Author

Forse, Alexander C. ; Merlet, Celine ; Allan, Phoebe K. et al. / New insights into the structure of nanoporous carbons from NMR, Raman, and pair distribution function analysis. In: Chemistry of Materials. 2015 ; Vol. 27, No. 19. pp. 6848-6857.

Bibtex

@article{56bdcf1805c64e3abf31671848e5491e,
title = "New insights into the structure of nanoporous carbons from NMR, Raman, and pair distribution function analysis",
abstract = "The structural characterization of nanoporous carbons is a challenging task as they generally lack long-range order and can exhibit diverse local structures. Such characterization represents an important step toward understanding and improving the properties and functionality of porous carbons, yet few experimental techniques have been developed for this purpose. Here we demonstrate the application of nuclear magnetic resonance (NMR) spectroscopy and pair distribution function (PDF) analysis as new tools to probe the local structures of porous carbons, alongside more conventional Raman spectroscopy. Together, the PDFs and the Raman spectra allow the local chemical bonding to be probed, with the bonding becoming more ordered for carbide-derived carbons (CDCs) synthesized at higher temperatures. The ring currents induced in the NMR experiment (and thus the observed NMR chemical shifts adsorbed species) are strongly dependent on the size of the aromatic carbon domains. We exploit this property and use computer simulations to show that the carbon domain size increases with the temperature used in the carbon synthesis. The techniques developed here are applicable to a wide range of porous carbons and offer new insights into the structures of CDCs (conventional and vacuum-annealed) and coconut shell-derived activated carbons.",
keywords = "DOUBLE-LAYER CAPACITORS, CARBIDE-DERIVED CARBONS, ELECTRICAL DOUBLE-LAYER, IN-SITU NMR, INDEPENDENT CHEMICAL-SHIFT, CHARGE STORAGE MECHANISM, MICROPOROUS CARBONS, MAGNETIC-RESONANCE, SIZE DISTRIBUTION, AMORPHOUS-CARBON",
author = "Forse, {Alexander C.} and Celine Merlet and Allan, {Phoebe K.} and Humphreys, {Elizabeth K.} and Griffin, {John M.} and Mesut Aslan and Marco Zeiger and Volker Presser and Yury Gogotsi and Grey, {Clare P.}",
note = "This document is the Accepted Manuscript version of a Published Work that appeared in final form in Chemistry of Materials, copyright {\textcopyright} 2015 American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://pubs.acs.org/doi/10.1021/acs.chemmater.5b03216",
year = "2015",
month = oct,
day = "13",
doi = "10.1021/acs.chemmater.5b03216",
language = "English",
volume = "27",
pages = "6848--6857",
journal = "Chemistry of Materials",
issn = "0897-4756",
publisher = "AMER CHEMICAL SOC",
number = "19",

}

RIS

TY - JOUR

T1 - New insights into the structure of nanoporous carbons from NMR, Raman, and pair distribution function analysis

AU - Forse, Alexander C.

AU - Merlet, Celine

AU - Allan, Phoebe K.

AU - Humphreys, Elizabeth K.

AU - Griffin, John M.

AU - Aslan, Mesut

AU - Zeiger, Marco

AU - Presser, Volker

AU - Gogotsi, Yury

AU - Grey, Clare P.

N1 - This document is the Accepted Manuscript version of a Published Work that appeared in final form in Chemistry of Materials, copyright © 2015 American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://pubs.acs.org/doi/10.1021/acs.chemmater.5b03216

PY - 2015/10/13

Y1 - 2015/10/13

N2 - The structural characterization of nanoporous carbons is a challenging task as they generally lack long-range order and can exhibit diverse local structures. Such characterization represents an important step toward understanding and improving the properties and functionality of porous carbons, yet few experimental techniques have been developed for this purpose. Here we demonstrate the application of nuclear magnetic resonance (NMR) spectroscopy and pair distribution function (PDF) analysis as new tools to probe the local structures of porous carbons, alongside more conventional Raman spectroscopy. Together, the PDFs and the Raman spectra allow the local chemical bonding to be probed, with the bonding becoming more ordered for carbide-derived carbons (CDCs) synthesized at higher temperatures. The ring currents induced in the NMR experiment (and thus the observed NMR chemical shifts adsorbed species) are strongly dependent on the size of the aromatic carbon domains. We exploit this property and use computer simulations to show that the carbon domain size increases with the temperature used in the carbon synthesis. The techniques developed here are applicable to a wide range of porous carbons and offer new insights into the structures of CDCs (conventional and vacuum-annealed) and coconut shell-derived activated carbons.

AB - The structural characterization of nanoporous carbons is a challenging task as they generally lack long-range order and can exhibit diverse local structures. Such characterization represents an important step toward understanding and improving the properties and functionality of porous carbons, yet few experimental techniques have been developed for this purpose. Here we demonstrate the application of nuclear magnetic resonance (NMR) spectroscopy and pair distribution function (PDF) analysis as new tools to probe the local structures of porous carbons, alongside more conventional Raman spectroscopy. Together, the PDFs and the Raman spectra allow the local chemical bonding to be probed, with the bonding becoming more ordered for carbide-derived carbons (CDCs) synthesized at higher temperatures. The ring currents induced in the NMR experiment (and thus the observed NMR chemical shifts adsorbed species) are strongly dependent on the size of the aromatic carbon domains. We exploit this property and use computer simulations to show that the carbon domain size increases with the temperature used in the carbon synthesis. The techniques developed here are applicable to a wide range of porous carbons and offer new insights into the structures of CDCs (conventional and vacuum-annealed) and coconut shell-derived activated carbons.

KW - DOUBLE-LAYER CAPACITORS

KW - CARBIDE-DERIVED CARBONS

KW - ELECTRICAL DOUBLE-LAYER

KW - IN-SITU NMR

KW - INDEPENDENT CHEMICAL-SHIFT

KW - CHARGE STORAGE MECHANISM

KW - MICROPOROUS CARBONS

KW - MAGNETIC-RESONANCE

KW - SIZE DISTRIBUTION

KW - AMORPHOUS-CARBON

U2 - 10.1021/acs.chemmater.5b03216

DO - 10.1021/acs.chemmater.5b03216

M3 - Journal article

VL - 27

SP - 6848

EP - 6857

JO - Chemistry of Materials

JF - Chemistry of Materials

SN - 0897-4756

IS - 19

ER -