Low-Cost Hydrothermal Synthesis of Porous Carbon Spheres with Tunable Particle Size
Author(s)
Hong, Junghwa
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Abstract
Spherical porous carbon particles find applications in gas storage, biological and medical
sorbents, energy storage devices and other demanding applications. At the same time, the common
routes for their synthesis are elaborate and costly. Here we report on our study of a low-cost
synthesis of spherical carbons with uniform and tunable diameter. The application of a lowtemperature
hydrothermal process greatly accelerates the rate of cross-linking within polymer
precursors, allowing formation of individual spherical carbon particles upon subsequent polymer
carbonization. By reducing the precursor concentration we have demonstrated particle size
reduction from 1,250 to 140 nm. The as-produced particles exhibit disordered microstructure with
very smooth particle surface and open internal micro-porosity.
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Date
2016-05
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Text
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Undergraduate Thesis