文献类型：期刊文献

英文题名：Structural Evolution of Graphitic Carbon Derived from Ionic Liquids-Dissolved Cellulose and Its Application as Lithium-Ion Battery Anodes

作者：Liu, Shuai[1] Ren, Zhuoya[1] Fakudze, Sandile[1,2] Shang, Qianqian[3] Chen, Jianqiang[1] Liu, Chengguo[3] Han, Jiangang[2] Tian, Ziqi[4]

第一作者：Liu, Shuai

通信作者：Chen, JQ[1];Han, JG[2]

机构：[1]Nanjing Forestry Univ, Coll Biol & Environm, Lab Adv Environm & Energy Mat, Nanjing 210037, Peoples R China;[2]Nanjing Forestry Univ, Coll Biol & Environm, Dept Environm Sci, Nanjing 210037, Peoples R China;[3]Chinese Acad Forestry, Inst Chem Ind Forestry Prod, Nanjing 210042, Peoples R China;[4]Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Peoples R China

年份：2022

卷号：38

期号：1

起止页码：320-331

外文期刊名：LANGMUIR

收录：;EI(收录号：20220211443650);Scopus(收录号：2-s2.0-85122354507);WOS:【SCI-EXPANDED(收录号:WOS:000737889400001)】；

基金：The authors acknowledge the National Natural Science Foundation of China (31770615, 31822009), Fundamental Research Funds of the CAF (CAFYBB2020QA005), Priority Academic Program Development of Jiangsu High Educations (PAPD), and Qing Lan Project of Jiangsu Province.

语种：英文

外文关键词：Cellulose - Nitrogen - Gasoline - Lithium-ion batteries - Crystallinity - Anodes - Ionic liquids - Temperature

摘要：With an attempt to replace petroleum-derived commercial graphite (CG) with biomass-derived carbon, micro-crystalline cellulose (MCC) dissolved in 1-butyl-3-methylimidazolium acetate (BMIMAcO) was facilely carbonized to prepare cellulose-derived carbon under a low-temperature range of 250-1600 degrees C. TEM and AFM results revealed structural evolution of carbon nanosheets starting from carbon dots. The XRD and Raman results showed that the degree of crystallinity of the MCC-derived carbon was apparently enhanced as the temperature was increased to 93.02% at 1600 degrees C, while the XPS results revealed that the nitrogen content was greatly reduced with increasing temperature. BMIMAcO not only induced low-temperature graphitization of MCC-derived carbon but also provided nitrogen doping for the carbon. Used as an anode of lithium-ion batteries (LIBs), the carbon synthesized at 750 degrees C showed the best cyclic stability and reversible capacity (1052.22 mAh g(-1) at 0.5 A g(-1) after 100 cycles and 1017.46 mAh g(-1) at 1 A g(-1) after 1000 cycles) compared to other MCC-derived carbon and CG. In addition, the costs of cellulose-derived carbon are much lower than those of the petroleum-derived graphite, showing environmental and economical merits for LIB anode production.