Capacitive mechanism of oxygen functional groups on carbon surface in supercapacitors
By Yitao He. Electrochimica Acta, 2017
285 citations recorded by the source corpus.
Abstract Oxygen functional groups are one of the most important subjects in the study of electrochemical properties of carbon materials which not only can change the wettability, conductivity and pore size distributions of carbon materials, but also can occur redox reactions. In the electrode materials of carbon-based supercapacitors, the oxygen functional groups have been widely used to improve the capacitive performance. In this paper, we systematically analyzed the reasons for the increase of the capacity that promoted by oxygen functional groups in the charge∕discharge cycling tests and the mechanism how the pseudocapacitance is provided by the oxygen functional groups in the acid/alkaline aqueous electrolyte. In addition, we in more depth discussed the effect of the oxygen functional groups in electrochemical impedance spectroscopy.
Subfields: Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials, Renewable Energy, Sustainability and the Environment
View Paper: https://www.semanticscholar.org/paper/4d58617394fbd4a230dc53e36c1e7ce48c5ef204
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Citations in the corpus
- A critical review on biochar-based engineered hierarchical porous carbon for capacitive charge storage (2021, methodology): “The involvement of 87 surface functional groups on biochar-based EHPC can provide abundant reactions or 88 interaction sites for surface or interface-related processes such as the formation of 89 lithium-oxygen (Li-O) interaction in batteries, and pseudo-Faradaic reactions in 90 supercapacitors (SCs”