Dependence on cation size of thermally induced capacitive effect of a nanoporous carbon
نویسندگان
چکیده
Nanoporous carbon based thermally chargeable supercapacitors (TCS) are characterized in a set of experiments for low-grade heat harvesting and storage. A TCS consists of two nanoporous electrodes immersed in an electrolyte solution. When the temperature of one of the electrodes rises, its electrode potential increases, and a significant amount of thermal energy is converted to electric energy. The temperature sensitivity of the electrode potential (jdV/dTj) is highly dependent on the cation size: with everything else being the same, as the cation diameter (d) decreases, jdV/dTj increases. VC 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4742748]
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