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Mesoporous carbon (MC) was prepared from rice husk (RH) by a simple and template-free method which combines H3PO4 activation with a pretreatment of the RH with a NaOH solution and pre-oxidation in air. The pretreatment of RH with NaOH removes silicon and damages the crystal structure of the cellulose in the RH, both of which are beneficial to the preparation of MC with a high surface area and high...
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