Graphene Oxide-Based Aluminum Complex Ion Supercapacitor
Source abstract
Abstract
A kind of graphene oxide-based carbon electrode material for aluminum complex ion supercapacitor (Al-SC) is developed through KNO 3 -assisted explosion and followed capillary densification process, which has a large specific surface area and active sites for storing positive and negative ions. With the dual-salt electrolyte composed of aluminum chloride and ionic liquid, the capacitance of Al-SC reaches 549 F g –1 in the case of current density of 0.5 A g –1 and voltage from 0 to 3.5 V. Characterizations and control experiments demonstrate that the special porous structure and abundant oxygen-containing groups endow the Al-SC with a significant high energy density of 233 W h kg –1 and ultrahigh power density of 17,500 W kg –1 . The electrochemical storage mechanism of aluminum complex ions is also researched by ex situ characterization and theoretical calculation. This Al-SC paves the way for electrochemical energy storage based on aluminum species.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Supercapacitor Materials and Fabrication · Advancements in Battery Materials · Advanced battery technologies research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Materials Science, Hebei University, Baoding 071002, China
College of Science, Hebei Agricultural University, Baoding 071001, China
Funding
Hebei University · National Natural Science Foundation of China
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