Spontaneous and electrochemical intercalation of HNO3 into graphite

被引：12

作者：

Avdeev, VV ^{[1
]}

Tverezovskaya, OA ^{[1
]}

Sorokina, NE ^{[1
]}

机构：

[1] Moscow MV Lomonosov State Univ, Dept Chem, Moscow 119899, Russia

来源：

MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2000年 / 340卷

关键词：

graphite intercalation compounds; spontaneous intercalation; electrochemical intercalation; graphite nitrate; nitric acid;

D O I：

10.1080/10587250008025456

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The interaction of highly oriented pyrolytic graphite with nitric acid in a wide range of its concentrations was studied by potentiometry and X-ray. The threshold values of HNO3 concentration for the different stages of graphite nitrate formation have been determined during spontaneous and electrochemical intercalation. At anodic oxidation of graphite in 55-98% HNO3 the typical step-like character of the dependence of potential E(Q) is observed. The polarization of graphite (I=100 mu A) in 55-98% HNO3 results in obtaining the 2nd stage graphite nitrate. The increase of a current intensity (I) up to 1.5 mA allows to carry out synthesis of the Ist stage in 75-98% HNO3.

引用

页码：137 / 142

页数：6

共 5 条

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