Search Results - "Goward, G."

Characterizing the effect of superabsorbent polymer content on internal curing process of cement paste using calorimetry and nuclear magnetic resonance methods by Chidiac, S. E., Mihaljevic, S. N., Krachkovskiy, S. A., Goward, G. R.

“…Internal curing (IC) is used to mitigate autogenous shrinkage in low water-to-cement ratio ( w / c ) concrete. Although, superabsorbent polymers (SAP) have…”
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Solid-State NMR Study of Two Classic Proton Conducting Polymers:  Nafion and Sulfonated Poly(ether ether ketone)s by Ye, G, Janzen, N, Goward, G. R

“…Proton mobilities in Nafion and sulfonated poly(ether ether ketone) (S-PEEK) have been studied using high-resolution solid-state 1H NMR under fast magic angle…”
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Progress in coatings for gas turbine airfoils by Goward, G.W

“…The development of ever more efficient gas turbines has always been paced by the results of research and development in the concurrent fields of design and…”
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Proton Dynamics of Nafion and Nafion/SiO2 Composites by Solid State NMR and Pulse Field Gradient NMR by Ye, G., Hayden, C. A., Goward, G. R.

“…Proton mobilities in Nafion and Nafion/SiO2 composites have been studied using high-resolution solid-state MAS NMR. High-resolution solid-state 1H NMR show…”
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Proton dynamics in sulfonated ionic salt composites: Alternative membrane materials for proton exchange membrane fuel cells by De Almeida, N.E., Goward, G.R.

“…Hydrated Nafion, the most prevalent proton exchange membrane utilizes a vehicular mechanism for proton conduction. However, there is an increasing need for…”
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Layered Lithium Vanadium Fluorophosphate, Li5V(PO4)2F2: A 4 V Class Positive Electrode Material for Lithium-Ion Batteries by Makimura, Y, Cahill, L. S, Iriyama, Y, Goward, G. R, Nazar, L. F

“…A single-phase, well-crystallized Li5V(PO4)2F2/carbon nanocomposite has been prepared by an optimized solid-state route, and its electrochemical behavior was…”
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Rhombohedral Form of Li3V2(PO4)3 as a Cathode in Li-Ion Batteries by Gaubicher, J, Wurm, C, Goward, G, Masquelier, C, Nazar, L

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Homogenization Study of the Effects of Cycling on the Electronic Conductivity of Commercial Lithium-Ion Battery Cathodes by Foster, J. M, Gully, A, Liu, H, Krachkovskiy, S, Wu, Y, Schougaard, S. B, Jiang, M, Goward, G, Botton, G. A, Protas, B

“…State-of-the-art image acquisition, image analysis, and modern homogenization theory are used to study the effects of cycling on commercial lithium-ion battery…”
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Influences of casting solvents on proton dynamics within sulfonated polyether ether ketones (S-PEEKs) studied using high-resolution solid-state NMR by Ye, G., Mills, C.M., Goward, G.R.

“…Proton mobilities of S-PEEK membranes with variable degrees of sulfonation (DS), and of S-PEEK membranes cast from different solvents were studied using…”
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Studies of lithium ion dynamics in paramagnetic cathode materials using (6)Li 1D selective inversion methods by Davis, L J M, He, X J, Bain, A D, Goward, G R

“…The effectiveness of two different selective inversion methods is investigated to determine timescales of Li ion mobility in paramagnetic Li intercalation…”
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Poly(pyrrole) and poly(thiophene)/vanadium oxide interleaved nanocomposites: positive electrodes for lithium batteries by Goward, G.R, Leroux, F, Nazar, L.F

“…Lithium insertion has been examined in a series of conductive polymer-V 2O 5 nanocomposites that have a structure comprised of layers of polymer chains…”
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Study of Imidazole-Based Proton-Conducting Composite Materials Using Solid-State NMR by Benhabbour, S. R, Chapman, R. P, Scharfenberger, G, Meyer, W. H, Goward, G. R

“…The application of solid-state NMR methods to characterize the structure and dynamics of imidazole-based proton-conducting polymeric materials provides insight…”
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The true crystal structure of Li17M4 (M=Ge, Sn, Pb)-revised from Li22M5 by GOWARD, G. R, TAYLOR, N. J, SOUZA, D. C. S, NAZAR, L. F

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Polymer-Functionalized Carbon Nanotubes Investigated by Solid-State Nuclear Magnetic Resonance and Scanning Tunneling Microscopy by Cahill, L. S, Yao, Z, Adronov, A, Penner, J, Moonoosawmy, K. R, Kruse, P, Goward, G. R

“…Carbon nanotubes are an intriguing new form of carbon, comprising molecular-scale cylinders of nanometer diameter and micrometer to centimeter lengths. They…”
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6Li{31P} Rotational-Echo, Double-Resonance Studies of Lithium Ion Site Dynamics in Li3V2(PO4)3 by Cahill, L. S, Kirby, C. W, Goward, G. R

“…Low-temperature 6Li{31P} rotational-echo, double-resonance (REDOR) measurements were used to study lithium mobility within each of the three Li sites in…”
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6,7Li NMR study of ion mobility on the molecular scale in lithated imidazole complexes by Czardybon, A.R., Goward, G.R.

“…Two model compounds, lithium imidazolium (LiIm) and lithium 2-undecylimidazolium (und-LiIm), were synthesized. These materials are chosen as models of…”
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7Li NMR and Two-Dimensional Exchange Study of Lithium Dynamics in Monoclinic Li3V2(PO4)3 by Cahill, L. S, Chapman, R. P, Britten, J. F, Goward, G. R

“…High-resolution solid-state 7Li NMR was used to characterize the structure and dynamics of lithium ion transport in monoclinic Li3V2(PO4)3. Under fast…”
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Nanostructured materials for energy storage by Nazar, L.F., Goward, G., Leroux, F., Duncan, M., Huang, H., Kerr, T., Gaubicher, J.

“…Traditional electrode materials for lithium-ion storage cells are based on materials which have both mixed electron and ion transport (for Li+). They are…”
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6Li NMR Studies of Cation Disorder and Transition Metal Ordering in Li[Ni1/3Mn1/3Co1/3]O2 Using Ultrafast Magic Angle Spinning by Cahill, L. S, Yin, S.-C, Samoson, A, Heinmaa, I, Nazar, L. F, Goward, G. R

“…Studies of Li[Ni1/3Mn1/3Co1/3]O2 prepared under six different conditions are compared using high-resolution solid-state 6Li NMR. Differing degrees of cation…”
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Efficiency measure of SAP as internal curing for cement using NMR & MRI by Chidiac, S.E., Mihaljevic, S.N., Krachkovskiy, S.A., Goward, G.R.

“…•Larger capillary pores remained saturated when superabsorbent polymer SAPs are added.•Increasing SAP prolongs availability of curing water with increased…”
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