中文关键词:膨胀石墨 高铁酸钾 混酸 微波法 英文关键词:Expanded graphite, Potassium ferrate, mixed acid, Microwave method 基金项目:河北省高等学校科学技术研究项目

作者	单位	E-mail
陈伟	唐山师范学院	chenwei83629@163.com
舒世立	唐山师范学院
贾献峰	唐山师范学院

摘要点击次数:940 全文下载次数:0 中文摘要: 以天然鳞片石墨为原料、高铁酸钾为氧化剂、浓硫酸、硝酸为插层剂微波法制备膨胀石墨，通过红外光谱、XRD和SEM对其结构进行表征。探讨了混酸用量、氧化剂用量、混酸比例、插层反应温度、插层反应时间对膨胀效果的影响。结果表明，石墨（g）:高铁酸钾（g）:混酸（mL）为1:0.3:18、V硫酸:V硝酸为2:1、插层反应温度35 ℃、反应时间60 min时，膨胀体积达75 mL/g，比硫酸为插层剂时膨胀体积增长了约87.5%。 英文摘要: Expanded graphite was prepared by microwave method with natural flake graphite as raw material, concentrated sulfuric acid and nitric acid as intercalating agent, potassium ferrite as oxidant. The structure was characterized by IR spectrum, XRD and SEM. The effects of the amount of mixed acid and oxidizing agent, the proportion of mixed acid, the intercalated reaction temperature, and the intercalated reaction time on the expanding volume of obfained expanded graphite were discussed. Experimental results showed that when natural flake graphite (g): potassium ferrite(g): mixed acid (mL) is 1:0.3:18, sulfuric acid: nitric acid is 2:1, intercalated reaction temperature is 35 ℃, reaction time is 60 min, the expanding volume reached about 75 mL/g, which is about 87.5% higher than when the sulfuric acid was used as the intercalant. 查看全文查看/发表评论下载PDF阅读器 相关附件：附件1 -->