Recycling Rice Husks | Chemical & Engineering News
Volume 91 Issue 28 | p. 24 | Concentrates
Issue Date: July 15, 2013

Recycling Rice Husks

Silica in rice’s protective outer layer can be reduced to silicon for high-capacity lithium battery anodes
Department: Science & Technology
News Channels: Materials SCENE, Nano SCENE
Keywords: rice husks, silica, silicon, lithium battery

Delicate grains of rice grow with tough husks that keep insects and bacteria out yet still circulate air and moisture. The husks accomplish this feat thanks to nanoporous layers of silica that are strong yet breathable. Now, researchers in South Korea have come up with a way to convert this silica into silicon so that the hundreds of millions of tons of rice husks produced each year might find new life as high-value materials (Proc. . . .

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