However, a team of international scientists led by Nanyang Technologies University, Singapur (NTU), has found a way to put this waste to value. The scientist's team decided to use the husks as an origin material for carbon nanosheets. They store electrical charges inside supercapacitors which are used in different vehicles.
Tamarind husks are rich in carbon and porous in nature, making them an ideal material for manufacturing carbon nanosheets. To make them, the researchers first washed the husks of tamarind fruits and dried them at 100 ° C for six hours before grinding them into powder. Then, they cooked the dust in the oven for 150 minutes at 700-900 degrees Celsius in the absence of oxygen to transform into ultra-thin sheets of carbon known as nanosheets.
The researcher's team, led by associate professor Steve Cuong Dang of the NTU, belive that these nanosheets when they widen, can become an environmentally friendly alternative to their industrially produced counterparts while reducing waste.
Nanosheets derived from tamarind husks also show good thermal stability and electric conductivity, making them promising options for energy storage.
The researchers hope to explore the large-scale production of carbon nanosheets with agricultural partners. They are also working to reduce the energy required for the production process, making them more environmentally friendly, and seeking better to improve the electrochemical properties of the nanosheets.
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Quimica.es. 2021. Los científicos convierten las cáscaras de tamarindo en una fuente de energía para los vehículos. [online] Recuperado de: https://www.quimica.es/noticias/1171973/los-cientficos-convierten-las-cscaras-de-tamarindo-en-una-fuente-de-energa-para-los-vehculos.html>