IN-SITU XRD STUDIES DURING ELECTROCHEMICAL PROCESSES IN THE TERNARY CRO3-H2SO4-GRAPHITE INTERCALATION COMPOUND

被引：14

作者：

SKOWRONSKI, JM ^{[1
]}

SHIOYAMA, H ^{[1
]}

机构：

[1] AIST,OSAKA NATL RES INST,IKEDA,OSAKA 563,JAPAN

来源：

CARBON | 1995年 / 33卷 / 10期

关键词：

GRAPHITE INTERCALATION COMPOUND; CRO3; INTERCALATION; H2SO4; ELECTROCHEMICAL BIINTERCALATION;

D O I：

10.1016/0008-6223(95)00104-L

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The results of this paper have shown that the ternary stage-2 CrO3-H2SO4-graphite intercalation compound is electrochemically formed on the subsequent intercalation of H2SO4 into the host stage-5 CrO3-GIC/graphite matrix. In contrast to the binary H2SO4-GIC easily deintercalated upon cathodic reduction, stage-(4-6) CrO3-H2SO4-GICs are preserved despite the application of a deintercalation potential as low as -0.2 V vs the Hg/Hg2SO4/18M H2SO4 as the reference. An increase in the overpotential of the reaction of hydrogen evolution is noted during deintercalation of the ternary compound. The product of deintercalation of stage-2 CrO3-H2SO4-GIC with water appeared to be of the same stage number as the starting CrO3-GIC but of a better ordered structure.

引用

页码：1473 / 1478

页数：6

共 21 条

[1] DETERMINATION OF H2SO4-HSO4-AND HCLO4-CLO4-RATIOS IN GRAPHITE LAMELLAR COMPOUNDS [J].