Chemically reduced graphene oxide paper as positive electrode for advanced Zn/Ce redox flow battery.
- Resource Type
- Article
- Authors
- Liu, Baolu; Yang, Bin; Jiao, Yunfen; Cai, Dingjian; Yang, Liang; Shu, Qi; Shi, Anhong; Xie, Zhipeng; Xie, Chenfan
- Source
- Materials Chemistry & Physics. Dec2018, Vol. 220, p208-215. 8p.
- Subject
- *ELECTRODES
*GRAPHENE oxide
*CHEMICAL reduction
*ELECTRONS
*ELECTROLYTES
- Language
- ISSN
- 0254-0584
Abstract Zn/Ce redox flow battery (ZRFB) is emerging as a promising technology to store large amount of energy economically and efficiently, wherein a highly efficient positive electrode with a continuous and fast electronic and ionic transportation path is urgently desired. The unique nanostructure of reduced graphene oxide (RGO) paper electrode is prepared by a simply chemical reduction method, which facilitates transference of the electron and Ce3+/Ce4+ at the electrolyte/electrode interface. Thus ZRFB exhibits superior extent of charge (81.0%) and energy efficiency (71.3%). The results show RGO paper is a good candidate for positive electrode of ZRFB. Highlights • The RGOC paper possesses good flexibility with a porous structure. • The C/O ratio of RGOC is different from that of RGOT. • The activity of RGOC towards Ce3+/Ce4+ is better than that of RGOT. [ABSTRACT FROM AUTHOR]