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首页> 外文期刊>Journal of Applied Polymer Science >Heteroatom-doped reduced graphene oxide/polyaniline nanocomposites with improved n-type thermoelectric performance
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Heteroatom-doped reduced graphene oxide/polyaniline nanocomposites with improved n-type thermoelectric performance

机译：杂原子掺杂的石墨烯氧化物/聚苯胺纳米复合材料，具有改进的n型热电性能

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摘要

Polyaniline (PANI) is a potential candidate for n-type thermoelectric (TE) materials owing to its intrinsic electrical conductivity, low thermal conductivity, and facile synthesis techniques. However, its low Seebeck coefficient and power factor have limited its widespread usage. In this study, nitrogen-doped, and sulfur-nitrogen co-doped reduced graphene oxide (rGO) were used for tuning the TE properties of PANI. Doped rGO and PANI/doped-rGO nanocomposites were prepared via hydrothermal technique and chemical oxidative polymerization respectively and thereafter characterized. The TE properties of the nanocomposites were also studied and an optimized Seebeck coefficient, power factor and zT value of -1.75 mV K-1, 95 mu W m(-1) K-2 and 0.06, respectively were reported for the PANI nanocomposite containing 1 wt% sulfur-nitrogen co-doped rGO. These results suggest that PANI/heteroatom-doped rGO can serve as promising candidates for n-type based TE applications.
机译：聚苯胺（PANI）由于其固有的导电性、低导热性和易于合成的技术，是n型热电材料的潜在候选材料。然而，其较低的塞贝克系数和功率因数限制了其广泛应用。在这项研究中，氮掺杂和硫氮共掺杂还原氧化石墨烯（rGO）被用于调节聚苯胺的TE性质。分别采用水热法和化学氧化聚合法制备了掺杂rGO和PANI/掺杂rGO纳米复合材料，并对其进行了表征。还研究了纳米复合材料的TE性能，并报告了含1 wt%硫氮共掺杂rGO的聚苯胺纳米复合材料的最佳塞贝克系数、功率因数和zT值分别为-1.75 mV K-1、95μW m（-1）K-2和0.06。这些结果表明，PANI/杂原子掺杂的rGO可以作为基于n型的TE应用的候选材料。

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