In summary, whereas silicon nanomaterials have found potential
application in a number of areas, green, cost-effective, and scalable
synthesis of them from sustainable sources still remained challenging.
To conquer this barrier, we developed a route of recovering
nano-Si directly from rice husks, an agricultural waste, in which
silicon naturally exists in the form of silica nanoparticles. By coping
with the strongly exthermic reactions, we succeeded in preserving the nanostructure of silicon. Moreover, the uniquely small size and porous
nature of the obtained nano-Si gives it superior performance as
Li-ion battery anode, over both commercial metallurgical-grade silicon
particles and commercial non-porous silicon nanoparticles.
And the simplicity, cost effectiveness, and scalability of the fabrication
process make our RH-derived nano-Si anode promising for next
generation Li-ion batteries. In addition to Li-ion batteries, the plentiful
potential large-scale application of nanostructured Si renders
tremendous opportunities for this kind of agricultural byproduct
derived nanomaterial.
In summary, whereas silicon nanomaterials have found potential
application in a number of areas, green, cost-effective, and scalable
synthesis of them from sustainable sources still remained challenging.
To conquer this barrier, we developed a route of recovering
nano-Si directly from rice husks, an agricultural waste, in which
silicon naturally exists in the form of silica nanoparticles. By coping
with the strongly exthermic reactions, we succeeded in preserving the nanostructure of silicon. Moreover, the uniquely small size and porous
nature of the obtained nano-Si gives it superior performance as
Li-ion battery anode, over both commercial metallurgical-grade silicon
particles and commercial non-porous silicon nanoparticles.
And the simplicity, cost effectiveness, and scalability of the fabrication
process make our RH-derived nano-Si anode promising for next
generation Li-ion batteries. In addition to Li-ion batteries, the plentiful
potential large-scale application of nanostructured Si renders
tremendous opportunities for this kind of agricultural byproduct
derived nanomaterial.
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