Scientists in South Korea have developed a new way to store energy that also offers a solution to a growing environmental problem
Reporting their findings in the IOP Publishing journal Nanotechnology, the research team successfully converted used cigarette butts into a high performing material that could be integrated into computers, handheld devices, electric vehicles and wind turbines to store energy.
According to the study, this material outperforms commercially available carbon, graphene and carbon nanotubes. It may someday be used to coat the electrodes of supercapacitors: electrochemical components that can store extremely large amounts of electrical energy.
“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,” says co-author Professor Jongheop Yi of Seoul National University.
“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,” adds Professor Yi.
Carbon is the most common material found in supercapacitors due to its low cost, high surface area, high electrical conductivity and long term stability. Scientists around the world are working to improve the characteristics of supercapacitors – such as their energy density, power density and cycle stability – while trying to reduce production costs.
In their study, Professor Yi and his colleagues demonstrated that the cellulose acetate fibres 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 supercapacitive material.
“A high performing supercapacitor material should have a large surface area, which can be achieved by incorporating a large number of small pores into the material,” says Professor Yi. “A combination of different pore sizes ensures that the material has high power densities, which is an essential property in a supercapacitor.”
Once fabricated, the carbon-based material was attached to an electrode and tested in a three-electrode system to see how well the material could adsorb electrolyte ions (charge) and then release them (discharge). The material stored more electrical energy than commercially available carbon, graphene and carbon nanotubes.
“Our carbon-based material has the potential for use as an electrode material in lithium ion batteries, a catalyst-supporting material in fuel cells, and pollutant adsorbents,” says Professor Yi. “We hope our inventions will ultimately help reduce the environmental burden of cigarette butts while lowering the manufacturing cost of high quality carbon materials.”
USING CIGARETTE BUTTS TO COMBAT DENGUE
In addition to their energy storing potential, cigarette butts may one day be used to control dengue, one of the world’s most important mosquito-borne viral diseases.
The Latest on: Uses for cigarette butts
via Google News
The Latest on: Uses for cigarette butts
- America’s Havanaon May 12, 2020 at 2:19 pm
Even before the current Covid-19 pandemic, San Francisco was a deeply troubled city. It ranks first in the nation in theft, burglary, vandalism, shoplifting, and other property crime. On average, ...
- 'Ballot bins' encouraging smokers to throw away cigarette buttson May 11, 2020 at 7:38 am
In an attempt to get smokers to properly dispose of cigarette butts, a new type of bin has been installed in the Springfield area.
- Sharjah Abbco tower fire likely caused by cigarette butt, shisha coalson May 11, 2020 at 5:11 am
“The fire was caused 90 percent either by a cigarette butt or Shisha coals ... which provides thermal isolation and is used as the aesthetic aspect. “Sharjah Civil Defence is now considering ...
- Trying to quit smoking during lockdown? Just Kick the Button May 11, 2020 at 3:11 am
The Cancer Association of South Africa (Cansa) has launched an online smoking cessation programme called Kick Butt. Making the decision to quit is an achievement in itself. Successful quitting is a ...
- Upcycling food means doing more with lesson May 7, 2020 at 4:17 am
Turning food waste into new products is one small solution to fight food waste and there’s room for the market to grow.
- TerraCycle US Reports 2019 Year-End Financial And Operational Resultson May 6, 2020 at 5:06 am
TerraCycle US Inc., the U.S. subsidiary of international recycling leader TerraCycle, Inc., today announced financial results for the ...
- Fort Wayne murder suspect Bryan L. Flowers, tied to DNA on cigarette butt, faces September trialon May 5, 2020 at 5:00 pm
25-27 in Allen Superior Court on charges of murder and firearm used in the commission ... The gunman threw away a cigarette before leaving in a two-tone van. The cigarette butt was collected ...
- Fairbanks roadsides liberated of trash, but more cleanup is still neededon May 4, 2020 at 6:00 am
She joined dozens of volunteers in the annual effort to spruce up roadsides after the snow melts, revealing a winter’s accumulation of debris such as plastic grocery bags, fast food packaging and ...
- Ministry of Health's new 'Smoking is Dangerous' picture will want to make a chain smoker want to kick the button May 4, 2020 at 4:07 am
The Ministry of Health and Family Welfare notified a new set of health warnings for all tobacco product packs. This was done by making an amendment in the Cigarettes and other Tobacco Products ...
- Shop Class, Over Zoomon May 2, 2020 at 3:09 am
Editor’s Note: This story is the 16th in our series “On Teaching,” which aims to collect the wisdom and knowledge of veteran educators. As the coronavirus pandemic has forced the majority of American ...
via Bing News