典型文献
Insight into the microstructural evolution of anthracite during carbonization-graphitization process from the perspective of materialization
文献摘要：
Materialization of coal is one of effective and clean pathways for its utilization.The microstructures of coal-based carbon materials have an important influence on their functional applications.Herein,the microstructural evolution of anthracite in the temperature range of 1000-2800℃was systematically investigated to provide a guidance for the microstructural regulation of coal-based carbon materials.The results indicate that the microstructure of anthracite undergoes an important change during carbonization-graphitization process.As the temperature increases,aromatic layers in anthracite gradu-ally transform into disordered graphite microcrystals and further grow into ordered graphite microcrys-tals,and then ordered graphite microcrystals are laterally linked to form pseudo-graphite phase and eventually transformed into highly ordered graphite-like sheets.In particular,2000-2200℃is a critical temperature region for the qualitative change of ordered graphite crystallites to pseudo-graphite phase,in which the relevant structural parameters including stacking height,crystallite lateral size and graphi-tization degree show a rapid increase.Moreover,both aromaticity and graphitization degree have a linear positive correlation with carbonization-graphitization temperature in a specific temperature range.Besides,after initial carbonization,some defect structures in anthracite such as aliphatic carbon and oxygen-containing functional groups are released in the form of gaseous low-molecular volatiles along with an increased pore structure,and the intermediates derived from minerals could facilitate the con-version of sp3 amorphous carbon to sp2 graphitic carbon.This work provides a valuable reference for the rational design of microstructure of coal-based carbon materials.
文献关键词：
中图分类号：
作者姓名：
Huihui Zeng;Baolin Xing;Yijun Cao;Bing Xu;Lei Hou;Hui Guo;Song Cheng;Guangxu Huang;Chuanxiang Zhang;Qi Sun
作者机构：
Henan Key Laboratory of Coal Green Conversion.College of Chemistry and Chemical Engineering,Henan Polytechnic University,Jiaozuo 454003,China;State Collaborative Innovation Center of Coal Work Safety and Clean-efficiency Utilization,Jiaozuo 454003,China;Henan Province Industrial Technology Research Institute of Resources and Materials,Zhengzhou University,Zhengzhou 450001,China;National Engineering Research Center of Coal Preparation and Purification,China University of Mining and Technology,Xuzhou 221116,China
文献出处：
引用格式：
[1]Huihui Zeng;Baolin Xing;Yijun Cao;Bing Xu;Lei Hou;Hui Guo;Song Cheng;Guangxu Huang;Chuanxiang Zhang;Qi Sun-.Insight into the microstructural evolution of anthracite during carbonization-graphitization process from the perspective of materialization)[J].矿业科学技术学报（英文版）,2022(06):1397-1406
A类：
materialization,Materialization,microcrys,graphi
B类：
Insight,into,microstructural,evolution,anthracite,during,carbonization,graphitization,process,from,perspective,coal,one,effective,clean,pathways,its,utilization,microstructures,materials,have,important,influence,their,functional,applications,Herein,temperature,range,was,systematically,investigated,guidance,regulation,results,indicate,that,undergoes,change,increases,layers,gradu,disordered,graphite,microcrystals,further,grow,then,are,laterally,linked,pseudo,phase,eventually,transformed,highly,like,sheets,particular,critical,region,qualitative,crystallites,which,relevant,parameters,including,stacking,height,size,degree,show,rapid,Moreover,both,aromaticity,linear,positive,correlation,specific,Besides,after,initial,some,defect,such,aliphatic,oxygen,containing,groups,released,gaseous,low,molecular,volatiles,along,increased,pore,intermediates,derived,minerals,could,facilitate,version,sp3,amorphous,sp2,graphitic,This,work,provides,valuable,reference,rational,design
AB值：
0.496539
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