Publications
Prof. Zonghoon Lee’s Atomic-Scale Electron Microscopy Lab
Prof. Zonghoon Lee’s Atomic-Scale Electron Microscopy Lab
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Publications in Nature | Science | their sister journals
Nature, 629, 348-354,2024 / Nature Communications, 14:4747, 2023 / Nature Communications, 13:4916, 2022 / Nature Communications, 13:2759, 2022 / Nature, 596, 519-524, 2021 / Nature, 582, 511-514, 2020 / Nature Nanotechnology, 15, 289-295, 2020 / Nature Nanotechnology, 15, 59-66, 2020 / Science Advances, 6 (10), eaay4958, 2020 / Nature Electronics, 3, 207-215, 2020 / Nature Communications, 11 (1437), 2020 / Nature Energy, 3, 773-782, 2018 / Nature Communications, 8:1549, 2017 / Nature Communications, 6:8294, 2015 / Nature Communications, 6:7817, 2015 / Nature Communications, 5:3383, 2014
Abstract
A pure stage-1 graphite intercalation compound (GIC) has been prepared by the electrochemical oxidation of graphite in trifluoroacetic acid (CF3COOH). During the CF3COOH-GIC formation, covalent as well as ionic bonds between the trifluoroacetic acid and graphite layers are formed. Electrochemical reduction of the stage-1 GIC leads to the deintercalation of ionically bonded intercalate, yielding the stage-2 covalent GIC. The interlayer spacing is 8.10 Å for stage-1 and 11.62 Å for stage-2 GIC. Further electrochemical oxidation of stage-1 CF3COOH-GIC does not lead to the exfoliation of the GIC product, and the GIC has relatively high stability in air.