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- Title
High Electrochemical Performance Phosphorus-Oxide Modified Graphene Electrode for Redox Supercapacitors Prepared by One-Step Electrochemical Exfoliation.
- Authors
Zu, Lei; Gao, Xing; Lian, Huiqin; Cai, Xiaomin; Li, Ce; Zhong, Ying; Hao, Yicheng; Zhang, Yifan; Gong, Zheng; Liu, Yang; Wang, Xiaodong; Cui, Xiuguo
- Abstract
Phosphorus oxide modified graphene was prepared by one-step electrochemical anodic exfoliation method and utilized as electrode in a redox supercapacitor that contained potassium iodide in electrolytes. The whole preparation process was completed in a few minutes and the yield was about 37.2%. The prepared sample has better electrocatalysis activity for I−/I−3 redox reaction than graphite due to the good charge transfer performance between phosphorus oxide and iodide ions. The maximum discharge specific capacitance is 1634.2 F/g when the current density is 3.5 mA/cm2 and it can keep at 463 F/g after 500 charging–discharging cycles when the current density increased about three times.
- Subjects
PHOSPHORUS; GRAPHENE; SUPERCAPACITORS
- Publication
Nanomaterials (2079-4991), 2018, Vol 8, Issue 6, p417
- ISSN
2079-4991
- Publication type
Letter
- DOI
10.3390/nano8060417