Search Results - "Perras, Frédéric A."

Surface Termination of CsPbBr3 Perovskite Quantum Dots Determined by Solid-State NMR Spectroscopy by Chen, Yunhua, Smock, Sara R, Flintgruber, Anne H, Perras, Frédéric A, Brutchey, Richard L, Rossini, Aaron J

“…Cesium lead halide perovskite quantum dots (QDs) have gained significant attention as next-generation optoelectronic materials; however, their properties are…”
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Upcycling Single-Use Polyethylene into High-Quality Liquid Products by Celik, Gokhan, Kennedy, Robert M, Hackler, Ryan A, Ferrandon, Magali, Tennakoon, Akalanka, Patnaik, Smita, LaPointe, Anne M, Ammal, Salai C, Heyden, Andreas, Perras, Frédéric A, Pruski, Marek, Scott, Susannah L, Poeppelmeier, Kenneth R, Sadow, Aaron D, Delferro, Massimiliano

“…Our civilization relies on synthetic polymers for all aspects of modern life; yet, inefficient recycling and extremely slow environmental degradation of…”
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Dynamic Nuclear Polarization Solid-State NMR in Heterogeneous Catalysis Research by Kobayashi, Takeshi, Perras, Frédéric A, Slowing, Igor I, Sadow, Aaron D, Pruski, Marek

“…In this study, a revolution in solid-state nuclear magnetic resonance (SSNMR) spectroscopy is taking place, attributable to the rapid development of high-field…”
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Probing Interactions between Adsorbed Polymers and γ‑Al2O3 Using Solid-State NMR by Zhao, Tommy Yunpu, Perras, Frédéric A.

“…The interactions between polymers and metal oxide surfaces affect the physical properties of polymer composites and the selectivity of catalysts used for…”
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Multiplex Detection of Multiple-Quantum/Single-Quantum NMR Correlation Spectra by Shekar, S. Chandra, Perras, Frédéric A.

“…High-ordered multiple-quantum coherences have been used to gauge the size of coupled networks of nuclear spins but are seldom used in modern high-resolution…”
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DNP-Enhanced Ultrawideline Solid-State NMR Spectroscopy: Studies of Platinum in Metal–Organic Frameworks by Kobayashi, Takeshi, Perras, Frédéric A, Goh, Tian Wei, Metz, Tanner L, Huang, Wenyu, Pruski, Marek

“…Ultrawideline dynamic nuclear polarization (DNP)-enhanced 195Pt solid-state NMR (SSNMR) spectroscopy and theoretical calculations are used to determine the…”
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Multifunctional Separator Allows Stable Cycling of Potassium Metal Anodes and of Potassium Metal Batteries by Liu, Pengcheng, Hao, Hongchang, Celio, Hugo, Cui, Jinlei, Ren, Muqing, Wang, Yixian, Dong, Hui, Chowdhury, Aminur Rashid, Hutter, Tanya, Perras, Frédéric A., Nanda, Jagjit, Watt, John, Mitlin, David

“…This is the first report of a multifunctional separator for potassium‐metal batteries (KMBs). Double‐coated tape‐cast microscale AlF3 on polypropylene…”
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Polyethylene in Dead-End Silica Nanopores: Forces and Mobility from Non-Equilibrium Statistical Mechanics and Exchange Spectroscopy Nuclear Magnetic Resonance by Chen, Ziqiu, Paterson, Alexander L., Perras, Frédéric A., Peters, Baron

“…Billions of tons of plastic have been produced, and only a small fraction of this has been recycled. Tennakoon et al. [Nature Catalysis 3, 893 (2020)]…”
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Comparison of methods for the NMR measurement of motionally averaged dipolar couplings by Southern, Scott A., Perras, Frédéric A.

“…[Display omitted] •Single-bond dipolar couplings are widely used to study dynamics.•Numerous methods have been devised to measure strong dipolar couplings.•We…”
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Observing the Surface Termination of LaScO3 Perovskite Using Solid-State Nuclear Magnetic Resonance by Zhao, Tommy Yunpu, Greenstein, Emily P., Peczak, Ian L., Poeppelmeier, Kenneth R., Perras, Frédéric A.

“…Materials with well-defined surfaces are drawing increased attention for the design of bespoke catalysts and nanomaterials. Gaining a detailed understanding of…”
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Proton-detected solid-state NMR spectroscopy of spin-1/2 nuclei with large chemical shift anisotropy by Venkatesh, Amrit, Perras, Frédéric A., Rossini, Aaron J.

“…[Display omitted] •Arbitrary Indirect Dwell (AID) t1-incrementation enhances sensitivity and allows large indirect windows.•Short high-power adiabatic pulses…”
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The Structure of Boron Monoxide by Perras, Frédéric A., Thomas, Henry, Heintz, Patrick, Behera, Ranjan, Yu, Jiaqi, Viswanathan, Gayatri, Jing, Dapeng, Southern, Scott A., Kovnir, Kirill, Stanley, Levi, Huang, Wenyu

“…Boron monoxide (BO), prepared by the thermal condensation of tetrahydroxydiboron, was first reported in 1955; however, its structure could not be determined…”
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Atomic-Level Structure Characterization of Biomass Pre- and Post-Lignin Treatment by Dynamic Nuclear Polarization-Enhanced Solid-State NMR by Perras, Frédéric A., Luo, Hao, Zhang, Ximing, Mosier, Nathan S., Pruski, Marek, Abu-Omar, Mahdi M.

“…Lignocellulosic biomass is a promising sustainable feedstock for the production of biofuels, biomaterials, and biospecialty chemicals. However, efficient…”
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Spatial arrangement of dynamic surface species from solid-state NMR and machine learning-accelerated MD simulations by Kobayashi, Takeshi, Liu, Da-Jiang, Perras, Frédéric A

“…The surface arrangement of motional organic functionalities is explored by experimental dipolar coupling measurements and the prediction of motionally-averaged…”
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Determining the Three-Dimensional Structures of Silica-Supported Metal Complexes from the Ground Up by Perras, Frédéric A, Kanbur, Uddhav, Paterson, Alexander L, Chatterjee, Puranjan, Slowing, Igor I, Sadow, Aaron D

“…The immobilization of molecularly precise metal complexes to substrates, such as silica, provides an attractive platform for the design of active sites in…”
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Determination of the chemical shift tensor anisotropy and asymmetry of strongly dipolar coupled protons under fast MAS by Kobayashi, Takeshi, Perras, Frédéric A., Nishiyama, Yusuke

“…Orientationally-dependent interactions such as dipolar coupling, quadrupolar coupling, and chemical shift anisotropy (CSA) contain a wealth of spatial…”
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Automatic fitting of multiple-field solid-state NMR spectra by Perras, Frédéric A., Paterson, Alexander L.

“…The NMR lineshapes produced by half-integer quadrupolar nuclei are sensitive to 11 distinct fit parameters per inequivalent site. To date, automatic fitting…”
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Silica Supported Organometallic IrI Complexes Enable Efficient Catalytic Methane Borylation by Staples, Orion, Ferrandon, Magali S., Laurent, Guillaume P., Kanbur, Uddhav, Kropf, A. Jeremy, Gau, Michael R., Carroll, Patrick J., McCullough, Katherine, Sorsche, Dieter, Perras, Frédéric A., Delferro, Massimiliano, Kaphan, David M., Mindiola, Daniel J.

“…Catalytic C–H borylation is an attractive method for the conversion of the most abundant hydrocarbon, methane (CH4), to a mild nucleophilic building block…”
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Characterizing Substrate–Surface Interactions on Alumina-Supported Metal Catalysts by Dynamic Nuclear Polarization-Enhanced Double-Resonance NMR Spectroscopy by Perras, Frédéric A, Padmos, J. Daniel, Johnson, Robert L, Wang, Lin-Lin, Schwartz, Thomas J, Kobayashi, Takeshi, Horton, J. Hugh, Dumesic, James A, Shanks, Brent H, Johnson, Duane D, Pruski, Marek

“…The characterization of nanometer-scale interactions between carbon-containing substrates and alumina surfaces is of paramount importance to industrial and…”
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Site-Specific Sodiation Mechanisms of Selenium in Microporous Carbon Host by Perras, Frédéric A, Hwang, Sooyeon, Wang, Yixian, Self, Ethan C, Liu, Pengcheng, Biswas, Rana, Nagarajan, Sudhan, Pham, Viet Hung, Xu, Yixin, Boscoboinik, J. Anibal, Su, Dong, Nanda, Jagjit, Pruski, Marek, Mitlin, David

“…We combined advanced TEM (HRTEM, HAADF, EELS) with solid-state (SS)­MAS NMR and electroanalytical techniques (GITT, etc.) to understand the site-specific…”
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