Abstract
Capacitive deionization (CDI) is an emerging technology to supply deionized water as liquid coolant for the thermal management in microelectronics. Graphene has been demonstrated as a promising candidate for CDI electrode. However, the performance of current graphene-based CDI is far below expectation due to the limited specific surface area (SSA) and electrical conductivity of the chemically reduced graphene. Here we presented a KOH-activated graphene that has ultrahigh SSA of 3513m2/g and electrical conductivity of 104S/m. With improved materials properties, an ultrahigh electrosorption capacity of 11.86mg/g and a significant adsorption rate of 20min are achieved.
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