Ionic liquid-induced low temperature graphitization of cellulose-derived biochar for high performance sodium storage
文献类型：期刊论文
| 作者 | Yu, Yang; Ren, Zhuoya; Shang, Qianqian; Han, Jiangang; Li, Lei; Chen, Jianqiang; Fakudze, Sandile; Tian, Ziqi; Liu, Chengguo |
| 刊名 | SURFACE & COATINGS TECHNOLOGY
 |
| 出版日期 | 2021 |
| 卷号 | 412 |
| 关键词 | ANODE MATERIALS ENERGY-STORAGE POROUS CARBON ELECTRODE MATERIALS GRAPHENE OXIDE WOOD PLASTICS HARD CARBON BIOMASS CARBONIZATION MECHANISM |
| 英文摘要 | The graphitization of biochar by high temperature carbonization above 2000 degrees C or metal-based catalytic approaches posed specific hindrances to the industrial production of high-quality graphitic carbon from biomass. The use of imidazolium-based ionic liquids (ILs) to induce fast graphitization of biochar at a low temperature range has not yet been reported. In this work, the carbonization of microcrystalline cellulose and 1-butyl-3-methylimidazolium acetate (BMIMAcO) at the temperature range of 750 degrees C-1400 degrees C led to enhanced graphitization of the biochar in comparison with the carbonization of microcrystalline cellulose alone. The incorporation of intact imidazolium rings into carbon skeleton played a critical role in the formation of graphitic structure with high nitrogen content. The IL-induced cellulose carbon obtained at 1000 degrees C (ICC-1000) with 5.67 at.% of nitrogen-doping presented interconnected graphitic nanosheets with 0.488 nm interlayer spacing and abundant mesopores and macropores on the surface. When used as anodes of sodium-ion batteries (SIBs), the ICC-1000 exhibited stable reversible capacity around 391 mAh g(-1) at 100 mA g(-1) for 100 cycles and 136 mAh g(-1) at 500 mA g(-1) for 1000 cycles, showing satisfactory sodium storage performance. Kinetic analysis of Na+ storage revealed that the ICC-1000 showed obvious capacitive characteristics and improved electric conductivity. DFT calculations suggested an interlayer spacing of 4.9 angstrom for optimal Na+ intercalation in multilayer graphene, and the capacity of pristine multilayer graphene was greatly improved from 69.8 to 527.3 mAh g(-1) after 4.8 at.% of N-doping. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/22001]  |
| 专题 | 中国科学院宁波材料技术与工程研究所 2021专题_期刊论文 |
| 作者单位 | 1.Chen, JQ (corresponding author), Nanjing Forestry Univ, Coll Biol & Environm, 159 Longpan Rd, Nanjing 210037, Peoples R China. 2.Tian, ZQ (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Zhongguan West Rd, Ningbo 315201, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Yu, Yang,Ren, Zhuoya,Shang, Qianqian,et al. Ionic liquid-induced low temperature graphitization of cellulose-derived biochar for high performance sodium storage[J]. SURFACE & COATINGS TECHNOLOGY,2021,412. |
| APA | Yu, Yang.,Ren, Zhuoya.,Shang, Qianqian.,Han, Jiangang.,Li, Lei.,...&Liu, Chengguo.(2021).Ionic liquid-induced low temperature graphitization of cellulose-derived biochar for high performance sodium storage.SURFACE & COATINGS TECHNOLOGY,412. |
| MLA | Yu, Yang,et al."Ionic liquid-induced low temperature graphitization of cellulose-derived biochar for high performance sodium storage".SURFACE & COATINGS TECHNOLOGY 412(2021). |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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