Biomass-derived carbon materials present significant economic advantages alongside environmental sustainability, owing to their renewable nature and distinctive structure. They have been extensively studied for applications in energy storage. However, the low specific capacity over prolonged cycling periods impedes their progress. Activation of salt templates and heteroatom doping have been proven to be effective methods for enhancing the electrochemical properties of Biomass-derived carbon materials. This study focuses on utilizing waste corn straw as a precursor to develop nitrogen-doped poly porous carbon, which is employed as a negative electrode material for lithium-ion batteries (LIBs). The synergistic effects arising from heteroatom doping coupled with a dual-defect porous carbon structure resulted in exceptional electrochemical performance exhibited by nitrogen-doped corn stover-based porous carbon, achieving a reversible capacity of 425 mAh g⁻¹ after 600 cycles at a current density of 1 A g⁻¹. Density functional theory (DFT) calculations corroborate that the incorporation of nitrogen significantly enhances lithium-ion adsorption energies. Through element doping and structural adjustments made within this research, overall electrochemical performances for biomass-derived carbon materials were improved while proposing an economically viable solution for pollution-free sustainable anode materials suitable for industrial-scale production.

中文翻译：

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基于双缺陷合成策略的氮掺杂玉米秸秆基多孔碳在高储锂性能中的应用


由于其可再生性和独特的结构，生物质衍生的碳材料在环境可持续性的同时具有显着的经济优势。它们在储能中的应用已被广泛研究。然而，长时间循环的低比容量阻碍了它们的进展。盐模板的活化和杂原子掺杂已被证明是增强生物质衍生碳材料电化学性能的有效方法。本研究的重点是利用废弃玉米秸秆作为前驱体开发氮掺杂多孔碳，该碳用作锂离子电池 （LIB） 的负极材料。杂原子掺杂产生的协同效应与双缺陷多孔碳结构相结合，导致氮掺杂玉米秸秆基多孔碳表现出卓越的电化学性能，在 1 A g ⁻¹ 的电流密度下循环 600 次后达到 425 mAh g ⁻¹ 的可逆容量。密度泛函理论 （DFT） 计算证实，氮的掺入显着提高了锂离子吸附能。通过在本研究中进行的元素掺杂和结构调整，生物质衍生碳材料的整体电化学性能得到了改善，同时为适用于工业规模生产的无污染可持续负极材料提出了一种经济可行的解决方案。