[sup 2]H nuclear magnetic resonance spectroscopy of deuterium adsorption on single-walled carbon nanotubes

Kai Shen; Pietraß, Tanja
March 2004
Applied Physics Letters;3/1/2004, Vol. 84 Issue 9, p1567
Academic Journal
[sup 2]H nuclear magnetic resonance (NMR) spectroscopy was employed to study the interaction between deuterated hydrogen gas and single walled carbon nanotubes before and after purification. Transmission electron micrographs revealed strong bundling of the tubes. After purification, very little amorphous carbon and no graphitic particles were present, implying that the interactions observed are truly due to the nanotubes. In the parent material, the NMR signal is dominated by interaction of hydrogen with residual metal catalyst particles. For purified material, hydrogen in the gas phase is discernible from adsorbed hydrogen. The two phases do not exchange with each other on a ms time scale. The hydrogen molecules move among different adsorption sites, presumably outer tube surfaces and interstitial channels. This process is diffusion limited in the pressure range investigated. © 2004 American Institute of Physics.


Related Articles

  • NMR Spectroscopy of Hydrogen Adsorption on Carbon Nanotubes. Shen, K.; Curran, S.; Dewald, J.; Pietraß, T. // AIP Conference Proceedings;2005, Vol. 786 Issue 1, p275 

    Hydrogen storage properties of both single- and multi-walled carbon nanotubes (CNTs) under pressures up to 15 MPa are studied by nuclear magnetic resonance (NMR) spectroscopy. The role of residual metallic catalyst in hydrogen adsorption is studied by comparing purified samples with parent...

  • Atomic constraint in hydrogenated 'diamond-like' carbon. Tamor, M.A.; Vassell, W.C.; Carduner, K.R. // Applied Physics Letters;2/11/1991, Vol. 58 Issue 6, p592 

    Examines carbon bonding environments and compressive stress in plasma-deposited hydrogenated diamond-like carbon (DLC) films, as a function of substrate bias voltage. Composition of DLC formed in an intermediate voltage range; Measurement of environments using nuclear magnetic resonance...

  • [sup 13]C-[sup 13]C dipolar recoupling under very fast magic angle spinning in solid-state nuclear magnetic resonance: Applications to distance measurements, spectral assignments, and high-throughput secondary-structure determination. Ishii, Yoshitaka // Journal of Chemical Physics;5/15/2001, Vol. 114 Issue 19, p8473 

    A technique is presented to recouple homonuclear dipolar couplings between dilute spin pairs such as [sup 13]C-[sup 13]C systems under very fast magic angle spinning (MAS) in solid-state nuclear magnetic resonance (NMR) spectroscopy. The presented technique, finite pulse rf driven recoupling...

  • A Selective Intra-HN(CA)CO Experiment for the Backbone Assignment of Deuterated Proteins. Nietlispach, Daniel // Journal of Biomolecular NMR;Feb2004, Vol. 28 Issue 2, p131 

    A modified version of the backbone TROSY based 3D HN(CA)CO experiment is presented that provides uniquely intraresidue correlation shift information, by efficiently suppressing the sequential connectivity data. The resulting reduction in the number of peaks decreases overlap and removes...

  • NMR investigations of hydrogen in carbon nanotubes. Schmid, M.; Goze-Bac, C.; Krämer, S.; Mehring, M.; Roth, S.; Bernier, P. // AIP Conference Proceedings;2002, Vol. 633 Issue 1, p593 

    We report proton nuclear magnetic resonance ([SUP1]H-NMR) measurements on hydrogen loaded single walled carbon nanotubes. The carbon nanotubes were produced with different kinds of catalysts and hydrogen loaded under 23 bar hydrogen pressure. The hydrogen adsorption properties of the carbon...

  • [sup 2]H and [sup 13]C NMR investigation of deuterofullerites C[sub 60]D[sub x]. Tarasov, V. P.; Muravlev, Y. B.; Fokin, V. N.; Shulga, Y. M. // Applied Physics A: Materials Science & Processing;2004, Vol. 78 Issue 7, p1001 

    Deuterofullerites C[sub 60]D[sub x] have been studied by [sup 2]H and [sup 13]C NMR. These fullerites have two types of carbon–deuterium bonds: C–D terminal bonds, characterized by the quadrupole coupling constant (QCC) of 171 kHz, and –C ··· D ···...

  • Nuclear magnetic resonance spectroscopic investigations of phase biaxiality in the nematic glass of a shape-persistent V-shaped mesogen. Figueirinhas, João L.; Feio, Gabriel; Cruz, Carlos; Lehmann, Matthias; Köhn, Christiane; Dong, Ronald Y. // Journal of Chemical Physics;11/7/2010, Vol. 133 Issue 17, p174509 

    Deuterium and carbon-13 NMR spectroscopy were used to study both the high temperature uniaxial nematic and the low temperature biaxial nematic glass of a shape-persistent V-shaped mesogen. It was found that biaxial ordering determined in the domains of the latter has symmetry lower than D2h and...

  • NMR chemical shifts of molecules encapsulated in single walled carbon nanotubes. Besley, Nicholas A.; Noble, Adam // Journal of Chemical Physics;3/14/2008, Vol. 128 Issue 10, p101102 

    We present density functional theory calculations of the nuclear magnetic resonance spectroscopy of molecules encapsulated within single walled carbon nanotubes. Ring currents in the nanotube induce shifts in the chemical shift of the nuclei comprising the encapsulated molecule. These changes in...

  • Pristine single-walled carbon nanotube purity evaluation by using 1H NMR spectroscopy. Nelson, Donna J.; Brammer, Christopher N. // Analytical & Bioanalytical Chemistry;Feb2010, Vol. 396 Issue 3, p1079 

    Proper purity characterization of single-walled carbon nanotubes (SWCNTs) is an increasingly hot topic in the area of carbon nanotechnology. There are inconsistencies in purity characterization of SWCNT from manufacturers and in the literature. Purity of “as received,” oven dried,...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics