Introduction to the results
Effectively utilizes air pollutants as functional material , which can not only realize the recycling of environmental waste as wealth, but also alleviate air pollution and respiratory diseases. This article, Tianjin University of Technology, Associate Professor Ma Yongchang, Professor Zhang Chenguang and other researchers published a paper titled "From pollution to wealth: Soot-graphene hybrid structure as supercapacitor electrode for high-performance alternating current filtering" in the journal , and , research has proposed to report a soot-graphene hybrid structure as an supercapacitor electrode material to achieve good alternating (AC) filtering performance. Smoke particles that cause environmental pollution can easily be regenerated from daily combustion wastes with abundant natural resources, thereby allowing electrolyte ions to migrate rapidly on their surfaces.
graphene can be grown from methane or renewable peanut oil to reduce the interface resistance between soot and current collector , helping to make full use of the structural advantages of soot . 2cm-2 at 120Hz, short RC time constant of 0.213ms, excellent electrochemical stability, and good ability to filter AC signals of different waveforms into DC signals. This study provides a sustainable strategy to recycle environmental pollution into value-added electrode materials for high-performance AC filtering supercapacitors, which show great potential in environmental protection and cost-effective development of small-volume AC filters for miniaturized electronic products.
Graphics and text introduction
Figure 1: Schematic diagram of the synthesis process of soot graphene film on nickel foil.
Figure 2. Material characterization
Figure 3. Electrochemical properties of supercapacitors.
Figure 4. Electrochemical properties of supercapacitors based on soot graphene (CH4 and peanut oil) M EMIMBF4/ACN organic electrolyte.
Summary
In summary, we report a renewable manufacturing method for sustainable AC filtering supercapacitors based on soot-graphene hybrid structure. Utilizing soot in this work, a large-scale environmentally polluted waste, can provide new ways to develop environmentally friendly and cost-effective soot-based electrodes for AC filtering supercapacitor applications and help reduce harm to the environment, climate and human health.
Literature:
https://doi.org/10.1016/j.diamond.2022.109397
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