Results 21 to 30 of about 268,686 (320)
The reliability of the determination of tensor parameters by solid-state nuclear magnetic resonance
Journal of Chemical Physics, 1997 Paul Hodgkinson, Lyndon Emsley
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Acidity and Basicity of Solid Acid Catalysts Studied by Solid-State NMR
Chinese Journal of Magnetic Resonance, 2021 Solid-state nuclear magnetic resonance (NMR) is an important technique to study the acidity and basicity of solid catalysts. Here we review some research works carried out in our laboratory, including studies on the acidity of metal oxides under ...
Xin CHEN +3 more
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Magic angle spinning effects on longitudinal NMR relaxation: 15N in L-histidine
AIP Advances, 2023 Solid-state magnetic resonance is a unique technique that can reveal the dynamics of complex biological systems with atomic resolution. Longitudinal relaxation is a mechanism that returns longitudinal nuclear magnetization to its thermal equilibrium by ...
Armin Afrough +4 more
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Applications of Solid-State Nuclear Magnetic Resonance Spectroscopy in Methanol-to-Olefins Reaction
Chinese Journal of Magnetic Resonance, 2021 Methanol-to-olefins (MTO) is a prevalent industrial process for producing light olefins from the non-petroleum route. Molecular sieves are core catalysts for MTO owing to their unique pore structure and tunable acidity.
Shu-shu GAO +3 more
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Progress in the Studies on Sn-Zeolites by Solid-State Nuclear Magnetic Resonance
Chinese Journal of Magnetic Resonance, 2021 Due to their excellent catalytic performances in the conversion of biomass molecules such as glucose and lactic acid, the Sn-containing zeolite catalysts have received wide attention. Understanding detailed structures and acidity properties of the active
Yao XIAO +5 more
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Recent Advances in Solid-State Nuclear Magnetic Resonance Spectroscopy [PDF]
Annual Review of Analytical Chemistry, 2018 The sensitivity of nuclear magnetic resonance (NMR) spectroscopy to the local atomic-scale environment offers great potential for the characterization of a diverse range of solid materials. Despite offering more information than its solution-state counterpart, solid-state NMR has not yet achieved a similar level of recognition, owing to the anisotropic
Ashbrook, Sharon E. +2 more
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Chinese Journal of Magnetic Resonance, 2020 Cementitious materials have complex compositions and structures. Characterization of the hydration processes, and compositions and structure of productions of cementitious materials is challenging.
WANG Ke +3 more
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Chinese Journal of Magnetic Resonance, 2023 Due to its sensitivity to the local geometries and chemical environments, solid-state nuclear magnetic resonance (NMR) is widely applied to investigate the host-guest interactions between metal-organic frameworks (MOFs) and guest molecules in the studies
HE Caiyan +4 more
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Resolving Dirac electrons with broadband high-resolution NMR
Nature Communications, 2020 The detection of topological states is restricted to limited experimental tools. Here, the authors apply broadband solid-state 125Te nuclear magnetic resonance on Bi2Te3 nanoplatelets uncovering signals distinguishing edge Dirac electrons and bulk ...
Wassilios Papawassiliou +14 more
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Nuclear spin cooling using Overhauser field selective coherent population trapping [PDF]
, 2010 Hyperfine interactions with a nuclear spin environment fundamentally limit the coherence properties of confined electron spins in the solid-state. Here, we show that a quantum interference effect in optical absorption from two electronic spin states of a
Cirac, Ignacio +6 more
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