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Used Cigarette Butts can Offer 'Green' Energy Storage Solution

by Dr. Trupti Shirole on May 20, 2015 at 1:30 AM
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Used Cigarette Butts can Offer 'Green' Energy Storage Solution

Scientists around the world are working to improve the characteristics of super-capacitors, such as their energy density, power density and cycle stability, while trying to reduce production costs. South Korean scientists have revealed that used cigarette butts can be developed into a high-performing material that can be used to store energy and at the same time free the environment from the toxicity of the cigarette filters.

The researchers demonstrated that the cellulose acetate fibers found in most cigarette filters could be transformed into a carbon-based material using a simple, one-step burning technique called pyrolysis. The resulting material contained a number of tiny pores, increasing its performance as a super-capacitive material.

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This new material could be integrated into computers, handheld devices, electric vehicles and wind turbines to store energy. The researchers said, "This material outperforms commercially available carbon, graphene and carbon nanotubes and may someday be used to coat the electrodes of super-capacitors, electrochemical components that can store extremely large amounts of electrical energy."

Study co-author Jongheop Yi, professor at Seoul National University, said, "Our study has shown that used cigarette filters can be transformed into a high performing carbon-based material using a simple one step process, which simultaneously offers a green solution for meeting the energy demands of society. Numerous countries are developing strict regulations to avoid the trillions of toxic and non-biodegradable used cigarette filters that are disposed of into the environment each year. Our method is just one way of achieving this."

The findings appear in Nanotechnology.

Source: Medindia
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