image: Marios (representing ions of electrolyte) travel on the surface of electrode freely, and some monsters (representing various oxygencontaining functional groups) are trapped by bines (representing the boron Lewis acids). By the surface modification of boron species and optimization of BCO2 quantity, the BG800 establishes ultralow leak current, improved cyclic stability, and better rate performance in SBPBF4/PC. view more
Credit: Journal of Energy Chemistry
Prof. Cheng-Meng Chen and co-workers reported that the boron species on the surface of boron-doped graphene can act as a Lewis acid and stabilise electrochemical interfaces. The study was published in the Journal of Energy Chemistry as a cover story (https://doi.org/10.1016/j.jechem.2020.10.041).
As shown in the cover, Marios (representing ions of an electrolyte) travels freely on the electrode surface, while some monsters (representing various oxygen-containing functional groups) are trapped by bines (representing the boron Lewis acid). The safe interface allows Marios to transfer easily, ensuring fast movement (high rate performance), low loss (low current leakage), and no barrier (long lifetime). In this work, surface modification of the boron species and optimisation of the amount of BCO2 resulted in BG800 exhibiting ultralow leak current, improved cyclic stability, and better rate performance in an SBPBF4/PC electrolyte.
This work would provide insights into the design of high-performance boron-doped carbon materials towards energy storage.
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This work was supported by the National Science Foundation for Excellent Young Scholars of China (21922815), the Key Research and Development (R&D) Projects of Shanxi Province (201903D121007), the Natural Science Foundations of Shanxi Province (201801D221156), the DNL Cooperation Fund of CAS (DNL180308), the Science and Technology Service Network Initiative of CAS (KFJ-STS-ZDTP-068), and the Youth Innovation Promotion Association of CAS. (Zhe-Fan Wang)
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The Journal of Energy Chemistry is a publication that mainly reports on creative researches and innovativeapplications of chemical conversions of fossil energy, carbon dioxide, electrochemical energy and hydrogen energy,as well as the conversions of biomass and solar energy related with chemical issues to promote academicexchanges in the field of energy chemistry and to accelerate the exploration, research and development of energyscience and technologies.
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Journal of Energy Chemistry