文献类型：期刊文献

英文题名：Conversion of residual oil of ethylene tar into carbon precursors: Design, synthesis and mechanism exploration

作者：Zhang, Yuanqin[1];Cui, Lingrui[1];Cen, Lian[1];Pu, Hengjian[2];Wei, Xingguo[1];Huang, Jian[1];Zhai, Teng[2];Xu, Jun[1,3];Cao, Fahai[1,3]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nanjing 210094, Peoples R China;[3]East China Univ Sci & Technol, Large Ind Reactor Engn Res Ctr, Minist Educ, Shanghai 200237, Peoples R China

年份：2025

卷号：394

外文期刊名：FUEL

收录：;EI(收录号：20251218089151);WOS:【SCI-EXPANDED(收录号:WOS:001455954000001)】；

基金：This research is financially supported by National Natural Science Foundation of P.R.China (22308104). The authors also would like to thank the School of Materials Science and Engineering of Nanjing University of Science and Technology for the help on the electrochemical performance measurement.

语种：英文

外文关键词：Ethylene tar; Oxygen-containing functional groups; COPNA resin; Carbon anode

摘要：To achieve full utilization of ethylene tar (ET), it is of imperative importance to convert its residual oil (RO) into high-valued materials. A novel strategy of RO utilization was developed by preparing condensed polynuclear aromatic (COPNA) resin using a tailor-designed novel crosslinking agent (4-ter-Butyl-2,6-bis(hydroxymethyl) phenol, TBBP) to react with RO, followed by the carbonization into high-valued carbon materials. RO was first thoroughly characterized to verify the feasibility as an excellent feedstock for resin preparation. A novel crosslinking agent, TBBP, was designed and synthesized to introduce oxygen-containing functional group into resins, intended to improve the electrochemical performance of the resulting resin-derived carbon. TBBP was demonstrated to possess enhanced electrophilic-substitution reactivity than 1,4-benzenedimethanol (PXG). It was then shown to be conducive to prepare resin from RO to yield TBBP-COPNA, with a maximum yield of 87.52 % and an oxygen content of 6.98 % under 1:1 (RO:TBBP), 180 degrees C, 3 wt% catalyst dosage and 8 h. The carbon derived from TBBP-COPNA exhibited superior Na-storage performances to the one derived from PXG-COPNA, with a reversible capacity increased significantly from 122 to 250 mAh/g at 50 mA/g. Moreover, synthesis mechanism of TBBP-COPNA was explored through simulation. It was further revealed that the introduction of polar functional groups into resin was an effective method to improve electrochemical performance of resinbased carbon. The current strategy not only provided a high value-added utilization strategy for RO, but also developed a novel design and synthesis method of COPNA resin with polar functional group, thereby substantiating great potential to produce superior carbon anode for the Na-storage.