物理化学学报2026，Vol.42Issue(5)：84-96,13.DOI:10.1016/j.actphy.2025.100199
玉米酒糟衍生硬碳:一种可持续的高倍率、长寿命钠离子电池负极材料
Corn-distillers-derived hard carbon:a sustainable high-rate,long-life anode for sodium-ion batteries
摘要
Abstract
Hard carbon(HC)derived from corn-distillers is a sustainable,affordable anode candidate for sodium-ion batteries(SIBs),yet its practical deployment has been limited by insufficient reversible capacity.Here we report a temperature-gradient treatment that precisely tailors interlayer spacing,porosity,and graphitization in corn-distillers-derived hard carbon,unlocking exceptional electrochemical performance.The optimized material exhibits an interlayer spacing of 0.378 nm and a dominant pore size of 1.68 nm.It demonstrates outstanding high-rate behavior,achieving 289 and 198 mAh g-1 at 1.0 and 2.0 A g-1,respectively.Additionally,it retains 83%of its capacity after 700 cycles at 2.0 A g-1.Integrating in situ X-ray diffraction with ex situ Raman spectroscopy demonstrates a unique sodium-storage mechanism characterized by both"adsorption-intercalation and pore-filling".This approach helps elucidate the rapid kinetics and long-lasting performance.These results demonstrate that controlled structural tactics of biomass-derived HC can achieve the desired capacity,rate capability,and longevity required for practical SIB anodes—bringing an abundant,waste-derived feedstock dramatically closer to commercialization.关键词
玉米酒糟/硬碳/非原位拉曼/原位X射线衍射/倍率性能Key words
Corn distillers/Hard carbon/Ex situ Raman/In situ XRD/Rate performance分类
化学化工引用本文复制引用
张雪,何子涵,吴英琪,余维来,刘涛..玉米酒糟衍生硬碳:一种可持续的高倍率、长寿命钠离子电池负极材料[J].物理化学学报,2026,42(5):84-96,13.基金项目
本研究得到国家自然科学基金(22478368) （22478368）
湖北省重点研发计划(2023BAB113) （2023BAB113）
湖北省自然科学基金(2022CFA001和2023CFA088)以及中央高校基本科研业务费专项资金(中国地质大学(武汉),CUG22061)的资助. （2022CFA001和2023CFA088）
