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Zixu Zhao, Peng Li, Xiaohua Zheng, Liangshun Xiang, Xiaoyu Zhang, Mervat Ibrahim, Shuangxi Fang, and Chu Liang, Low-temperature synthesis of graphite with fast ion storage kinetics from greenhouse gas for electrochemical energy storage, Int. J. Miner. Metall. Mater., (2026). https://doi.org/10.1007/s12613-026-3435-4
Zixu Zhao, Peng Li, Xiaohua Zheng, Liangshun Xiang, Xiaoyu Zhang, Mervat Ibrahim, Shuangxi Fang, and Chu Liang, Low-temperature synthesis of graphite with fast ion storage kinetics from greenhouse gas for electrochemical energy storage, Int. J. Miner. Metall. Mater., (2026). https://doi.org/10.1007/s12613-026-3435-4
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基于温室气体低温合成用于电化学储能的快速传导碱金属离子石墨材料

摘要: 针对传统石墨的合成涉及CO2排放和高温石墨化过程,本文报道了一种无需过渡金属催化剂,在加热至135°C的条件下基于温室气体CO2合成高性能石墨负极材料的新方法。与使用石油焦基材料合成石墨相比,本方法的石墨合成不需要经历3000°C高温石墨化过程。研究发现石墨的石墨化程度与CO2压力密切相关。在最大压力20 MPa下合成了石墨,而在最大压力6.3 MPa下合成了半石墨化碳。用本方法合成的石墨具有优异的储锂动力学和循环稳定性,在1.0 A·g−1的电流密度下可稳定充放电超过3000次循环。这项工作提出了一种协同实现温室气体高值利用与负极材料节能生产的新策略。

 

Low-temperature synthesis of graphite with fast ion storage kinetics from greenhouse gas for electrochemical energy storage

Abstract: Conventional graphite synthesis involves CO2 emission and a graphitization process at a high temperature of ~3000°C. Herein, we report a new method to synthesize high-performance graphite anode materials from greenhouse CO2 gas at an external heating temperature as low as 135°C. Transition metal catalysts are not required for low-temperature synthesis of graphite. Extreme graphitization temperatures are not required as compared to graphite synthesized from petroleum coke-based materials. The graphitization degree of graphite was found to be strongly related to CO2 pressure. Graphite was synthesized at a maximum pressure of 20 MPa, whereas semi-graphited carbon was synthesized at a maximum pressure of 6.3 MPa. The synthesized graphite exhibited superior lithium storage kinetics and excellent cycling stability over 3000 cycles, with a capacity retention of ~100% at 1.0 A·g−1. This work establishes an integrated sustainable strategy that concurrently addresses greenhouse gas utilization and energy-efficient anode material production.

 

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