ANODIC-OXIDATION OF CRO3-GRAPHITE INTERCALATION COMPOUNDS IN SULFURIC-ACID

被引：27

作者：

SKOWRONSKI, JM

JUREWICZ, K

机构：

[1] Technical University of Poznań, Institute of Chemistry and Applied Electrochemistry, 60-965 Poznań

来源：

SYNTHETIC METALS | 1991年 / 40卷 / 02期

关键词：

D O I：

10.1016/0379-6779(91)91772-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Anodic intercalation-deintercalation of 18 M sulfuric acid into chromium trioxide-graphite intercalation compounds (CrO3-GICs) is examined in comparison with the process occurring for pure graphite. Distinct differences in the influence of the CrO3 dissolved in acid and intercalated into graphite on the intercalation process of H2SO4 are demonstrated by means of galvanostatic and cyclic potentiodynamic methods. The proposed model of intercalation of H2SO4 into CrO3-GICs concerns both electrochemical process and chemical reactions involving the CrO3 intercalant. To account for surprising effects found in the curves recorded for CrO3-GICs the changes proceeding from the structural and chemical properties of these compounds because of intercalation of sulfuric acid are considered.

引用

页码：161 / 172

页数：12

共 19 条

[1] ANODIC-OXIDATION OF GRAPHITE IN H2SO4 DILATOMETRY - INSITU X-RAY-DIFFRACTION IMPEDANCE SPECTROSCOPY [J].