MODIFICATION OF GRAPHITE ELECTRODE MATERIALS FOR VANADIUM REDOX FLOW BATTERY APPLICATION .1. THERMAL-TREATMENT

被引：642

作者：

SUN, B ^{[1
]}

SYKLLASKAZACOS, M ^{[1
]}

机构：

[1] UNIV NEW S WALES,SCH CHEM ENGN & IND CHEM,POB 1,KENSINGTON,NSW 2033,AUSTRALIA

来源：

ELECTROCHIMICA ACTA | 1992年 / 37卷 / 07期

关键词：

GRAPHITE ELECTRODE; VANADIUM REDOX CELL;

D O I：

10.1016/0013-4686(92)85064-R

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The thermal activation of graphite felt was investigated at a range of temperatures and treatment times so as to enhance the electrochemical performance of this material for use in the vanadium redox cell. Graphite felt treated thermally at 400-degrees-C exhibited the greatest improvement in performance of the vanadium cell. Energy efficiencies of over 88% were obtained after this treatment compared with only 78% for the untreated felt. Results from XPS analysis showed that surface functional groups of C-O and C = O increased dramatically compared with untreated samples, suggesting that these functional groups behave as active sites for the vanadium redox reactions.

引用

页码：1253 / 1260

页数：8

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