期刊
CENTRAL EUROPEAN JOURNAL OF CHEMISTRY
卷 8, 期 4, 页码 783-788出版社
VERSITA
DOI: 10.2478/s11532-010-0048-5
关键词
Intercalated OH-ions in graphite; Multilayer structure; Thermal properties; Electron microscopy; X-ray techniques
Graphite intercalation compounds are often prepared by flake graphite, oxidants, inorganic acids, organic acids and intercalated ions which are usually hydrogen protons between the graphene planes. They are also known as the acid-treated graphite intercalation compounds. In this work, alkaline graphite intercalation compounds were prepared by flake graphite, K(2)Cr(2)O(7), concentrated H(2)SO(4) and NaOH, and the morphology and structure were characterized by Electron microscopy and X-ray techniques. The results display that the combination of neutralisation heat and oxidation capability produced by K(2)Cr(2)O(7) can break the bonds to produce the spaces between the graphene planes and hydroxyl ions also intercalate into the graphene planes to form alkaline graphite intercalation compounds in alkali solution. The morphology and structure of alkaline graphite intercalation compounds are analogous to the ones of the acid-treated graphite intercalation compounds, but the intercalated ions and the expansion volume are different. The results show that the method is an innovation.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据