Abstract
Thermoelectric oxide Na1.2Co1.8Ag0.2O4/reduced graphene oxide (rGO) composites were synthesized by polymerized complex method and solid-state reactions. Temperature dependence of electrical resistivity and the Seebeck coefficient were investigated from 312 K to 859 K. Lowest electrical resistivity was 30.2 μΩm. Maximum values of the Seebeck coefficient and power factor of Na1.2Co1.8Ag0.2O4/rGO were 136 μVK−1, and 444 μW m−1 K−2, respectively. Results indicated that low content of incorporated rGO in Na1.2Co1.8Ag0.2O4 effectively enhanced the power factor (PF) of thermoelectric materials.
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