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News & Views |
Mapping spins in flatland
Nuclear quadrupole resonance spectroscopy is used to map the properties of atomically thin hexagonal boron nitride, with the help of the nitrogen–vacancy colour centres engineered in a diamond layer placed under the 2D material.
- Igor Aharonovich
- & Fedor Jelezko
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In situ NMR and electrochemical quartz crystal microbalance techniques reveal the structure of the electrical double layer in supercapacitors
Observing ionic species at the electrode/electrolyte interface in supercapacitor devices is difficult. In situ NMR is now used to directly quantify anionic and cationic species within a working microporous carbon supercapacitor electrode.
- John M. Griffin
- , Alexander C. Forse
- & Clare P. Grey
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Exploring electrolyte organization in supercapacitor electrodes with solid-state NMR
Supercapacitors are electrochemical energy-storage devices that take advantage of electrostatic interactions between high-surface-area nanoporous electrodes and electrolyte ions. Molecular mechanisms at work inside supercapacitor carbon electrodes are now clarified with solid-state nuclear magnetic resonance.
- Michaël Deschamps
- , Edouard Gilbert
- & François Béguin
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In situ NMR observation of the formation of metallic lithium microstructures in lithium batteries
The formation of lithium dendrites on the metal electrode surface of lithium batteries can lead to short circuits, making them potentially unsafe and unusable. The use of in situ NMR spectroscopy provides time-resolved and quantitative information about the nature of metallic lithium deposited on lithium-metal electrodes.
- Rangeet Bhattacharyya
- , Baris Key
- & Clare P. Grey