Preparation method of coal base graphene

• Main Authors: Kong Qingqiang, Shi Jiulong, Guo Xiaoqian, Huang Xianhong, Li Xiaoming, Li Shuzhen, Chen Chengmeng, Liu Zhuo, Su Fangyuan
• Format: Patent
• Language: Chinese; English
• Published: 03.08.2016
• Subjects: CHEMISTRY; COMPOUNDS THEREOF; INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OFSOLID INORGANIC COMPOUNDS; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS

The invention discloses a preparation method of coal base graphene. The preparation method comprises the following steps: grinding raw coal into coal powder, evenly mixing coal powder and a catalyst through ball milling to obtain a mixture; subjecting the mixture to a graphitization treatment, then mixing the graphitized material with concentrated sulfuric acid, evenly stirring, adding potassium permanganate to carry out reactions, adding deionized water, keeping on reactions, adding hydrogen peroxide, washing the reaction product by water, purifying, drying to obtain oxidized graphite powder, and finally processing the oxidized graphite powder at a temperature of 400 to 1200 DEG C to obtain coal base graphene. Abundant coal is taken as the raw material, the coal price is low, and the obtained graphene has the advantages of low cost, high quality, and suitability for massive production. 种煤基石墨烯的制备方法是将原煤粉碎成煤粉与催化剂经球磨混合均匀，得到混合物石墨化处理，将石墨化后的物料与浓硫酸搅拌均匀，然后加入高锰酸钾反应，加入去离子水继续反应后再加入双氧水，再经水洗纯化和干燥得氧化石墨粉体，经400?1200℃处理得到煤基石墨