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High Electrochemical Performance Phosphorus-Oxide Modified Graphene Electrode for Redox Supercapacitors Prepared by One-Step Electrochemical Exfoliation
- Source :
- Nanomaterials, Nanomaterials, Vol 8, Iss 6, p 417 (2018)
- Publication Year :
- 2018
- Publisher :
- MDPI, 2018.
-
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 :
- Materials science
Letter
General Chemical Engineering
Inorganic chemistry
Iodide
02 engineering and technology
010402 general chemistry
Electrocatalyst
01 natural sciences
Redox
law.invention
lcsh:Chemistry
law
General Materials Science
iodide ions
chemistry.chemical_classification
Supercapacitor
supercapacitors
Graphene
graphene
phosphorus oxide group
021001 nanoscience & nanotechnology
Exfoliation joint
electrochemical anodic exfoliation
0104 chemical sciences
lcsh:QD1-999
chemistry
Phosphorus oxide
Electrode
0210 nano-technology
Subjects
Details
- Language :
- English
- ISSN :
- 20794991
- Volume :
- 8
- Issue :
- 6
- Database :
- OpenAIRE
- Journal :
- Nanomaterials
- Accession number :
- edsair.doi.dedup.....4c3a01715cc698dba416ae41d248f5e9