Abstract In this work, the coal tar pitch (CTP) is modified by the pitch derived graphene oxide (pGO) prepared from the same CTP using ZnO template and in-situ KOH activation technique. The results indicate that the prepared pGO has the oxygen-containing functional groups with a high specific surface area up to 1937 m2/g. The mass ratio of ZnO to pitch is crucial to adjust the surface area of pGO. The pGO modified CTP have more condensed structures of pyrolysis products with increased structural regularity. This is also paralleled with enhanced microstructure development of mesophase spheres and their transforming into more orderly lamellar structure, due to the increased surface area and active role of the pGO additions. Such structure changes and reduced weight loss in pyrolysis and carbonization are beneficial for improving coke yield of CTP. The result reported is of great significance for exploring potential high value utilization of CTP.

中文翻译：

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沥青衍生的氧化石墨烯：表征和对煤焦油沥青热解和碳化的影响

摘要 在这项工作中，使用 ZnO 模板和原位 KOH 活化技术，通过由相同的 CTP 制备的沥青衍生的氧化石墨烯 (pGO) 对煤焦油沥青 (CTP) 进行改性。结果表明，制备的 pGO 具有含氧官能团，比表面积高达 1937 m2/g。ZnO 与沥青的质量比对于调节 pGO 的表面积至关重要。pGO 改性的 CTP 具有更多的热解产物的缩合结构，具有更高的结构规律。由于增加的表面积和 pGO 添加物的活性作用，这也与中间相球体的微观结构发展及其转化为更有序的层状结构相平行。这种结构变化和热解和碳化过程中重量损失的减少有利于提高CTP的焦炭收率。