Thermopressure coupling effect mimicking natural graphite formation to enhance the storage K-ion performance of carbonaceous heterostructures
Borrowing from natural mechanisms for material design can lead to functional mimicry and improvement. Inspired by graphite formation, a thermopressure coupling strategy under micropressure (<400 Pa) is applied to prepare carbon anodes. A thermopressure response is discovered based on the cellulos...
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sg-ntu-dr.10356-1692452023-07-10T15:34:29Z Thermopressure coupling effect mimicking natural graphite formation to enhance the storage K-ion performance of carbonaceous heterostructures Ji, Tianyi Liu, Xiaoxu Wang, Hui Shi, Yunli Li, Yang Zhang, Man Li, Junqi Liu, Hui Shen, Ze Xiang School of Physical and Mathematical Sciences Science::Physics Carbon Anodes Graphite Formation Borrowing from natural mechanisms for material design can lead to functional mimicry and improvement. Inspired by graphite formation, a thermopressure coupling strategy under micropressure (<400 Pa) is applied to prepare carbon anodes. A thermopressure response is discovered based on the cellulose precursor. Here, homologous graphene quantum dot/hard carbon (GQD/HC) heterostructures are synthesized. Under 181.4 Pa and 1,200 °C, the product shows a capacity of 310 mAh g-1, while the capacity of the direct carbonization product is only 120 mAh g-1. Prominently, the GQD/HC heterostructure displays marked mechanical strength and flexibility. The experimental and theoretical results illustrate the ion and electron transfer, coordination environment, and electronic states in the GQD/HC heterostructure and elaborate on the origin of the enhanced performance. The thermopressure coupling under micropressure mimics graphite formation, but the heterostructure has better properties than traditional carbon materials. Additionally, micropressure injects new vitality into material research. Published version The authors appreciate the financial support from the National Natural Science Foundation of China (no. 52250710161). 2023-07-10T05:23:59Z 2023-07-10T05:23:59Z 2023 Journal Article Ji, T., Liu, X., Wang, H., Shi, Y., Li, Y., Zhang, M., Li, J., Liu, H. & Shen, Z. X. (2023). Thermopressure coupling effect mimicking natural graphite formation to enhance the storage K-ion performance of carbonaceous heterostructures. Research, 6, 0092-. https://dx.doi.org/10.34133/research.0092 2096-5168 https://hdl.handle.net/10356/169245 10.34133/research.0092 37000188 2-s2.0-85152134017 6 0092 en Research © 2023 Tianyi Ji et al. Exclusive Licensee Science and Technology Review Publishing House. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution License (CC BY 4.0). application/pdf |
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Science::Physics Carbon Anodes Graphite Formation Ji, Tianyi Liu, Xiaoxu Wang, Hui Shi, Yunli Li, Yang Zhang, Man Li, Junqi Liu, Hui Shen, Ze Xiang Thermopressure coupling effect mimicking natural graphite formation to enhance the storage K-ion performance of carbonaceous heterostructures |
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Borrowing from natural mechanisms for material design can lead to functional mimicry and improvement. Inspired by graphite formation, a thermopressure coupling strategy under micropressure (<400 Pa) is applied to prepare carbon anodes. A thermopressure response is discovered based on the cellulose precursor. Here, homologous graphene quantum dot/hard carbon (GQD/HC) heterostructures are synthesized. Under 181.4 Pa and 1,200 °C, the product shows a capacity of 310 mAh g-1, while the capacity of the direct carbonization product is only 120 mAh g-1. Prominently, the GQD/HC heterostructure displays marked mechanical strength and flexibility. The experimental and theoretical results illustrate the ion and electron transfer, coordination environment, and electronic states in the GQD/HC heterostructure and elaborate on the origin of the enhanced performance. The thermopressure coupling under micropressure mimics graphite formation, but the heterostructure has better properties than traditional carbon materials. Additionally, micropressure injects new vitality into material research. |
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School of Physical and Mathematical Sciences |
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School of Physical and Mathematical Sciences Ji, Tianyi Liu, Xiaoxu Wang, Hui Shi, Yunli Li, Yang Zhang, Man Li, Junqi Liu, Hui Shen, Ze Xiang |
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Article |
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Ji, Tianyi Liu, Xiaoxu Wang, Hui Shi, Yunli Li, Yang Zhang, Man Li, Junqi Liu, Hui Shen, Ze Xiang |
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Ji, Tianyi |
title |
Thermopressure coupling effect mimicking natural graphite formation to enhance the storage K-ion performance of carbonaceous heterostructures |
title_short |
Thermopressure coupling effect mimicking natural graphite formation to enhance the storage K-ion performance of carbonaceous heterostructures |
title_full |
Thermopressure coupling effect mimicking natural graphite formation to enhance the storage K-ion performance of carbonaceous heterostructures |
title_fullStr |
Thermopressure coupling effect mimicking natural graphite formation to enhance the storage K-ion performance of carbonaceous heterostructures |
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Thermopressure coupling effect mimicking natural graphite formation to enhance the storage K-ion performance of carbonaceous heterostructures |
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thermopressure coupling effect mimicking natural graphite formation to enhance the storage k-ion performance of carbonaceous heterostructures |
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2023 |
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https://hdl.handle.net/10356/169245 |
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1772827016029011968 |