Yan Lidong, Fang Yilin, Deng Jianfeng, Zhu Yaming, Zhang Yuzhu, Cheng Junxia, Zhao Xuefei
Institute of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114051, China.
Key Laboratory of Chemical Metallurgy Liaoning Province, University of Science and Technology Liaoning, Anshan 114051, China.
Materials (Basel). 2022 Jul 24;15(15):5136. doi: 10.3390/ma15155136.
Mesocarbon microbeads (MCMBs) are a kind of engineering and functional artificial carbon materials generally prepared by the polymerization of polycyclic aromatic hydrocarbons. The physicochemical property of the raw materials plays a key role in the quality of MCMBs. For a detailed analysis of the synergistic effects of the generation of MCMBs, a high-temperature coal tar pitch was used as raw materials, and coal pyrolytic extracts were used as additive to synthesize the MCMBs. The microstructure and morphology of the derived MCMBs were determined by an optical microscope, scanning electron microscope, X-ray diffraction, Raman spectrum, and laser particle size analyzer. In fact, the addition of the coal pyrolytic extracts can adjust the molecular structure of the blending pitch, and the coal pyrolytic extracts can promote the generation of the MCMBs during the co-polycondensation process. The MCMBs obtained by co-polycondensation method have a good degree of sphericity, lower defects in the surface morphology, and a lower charge transfer resistance (R) of 4.677 Ω.
中间相炭微球（MCMBs）是一种工程和功能性人工碳材料，一般通过多环芳烃聚合制备。原材料的物理化学性质对中间相炭微球的质量起着关键作用。为详细分析中间相炭微球生成的协同效应，以高温煤焦油沥青为原料，煤热解提取物为添加剂合成中间相炭微球。通过光学显微镜、扫描电子显微镜、X射线衍射、拉曼光谱和激光粒度分析仪确定所得中间相炭微球的微观结构和形态。事实上，煤热解提取物的加入可以调节共混沥青的分子结构，并且煤热解提取物在共缩聚过程中可以促进中间相炭微球的生成。通过共缩聚法得到的中间相炭微球具有良好的球形度，表面形态缺陷较少，电荷转移电阻（R）较低，为4.677Ω。
