Pu Zejun, Zheng Penglun, Zhang Yu
College of Materials Science and Engineering, Sichuan University of Science & Engineering, Zigong 643000, China.
High Temperature Resistant Polymer and Composites Key Laboratory of Sichuan Province, University of Electronic Science and Technology of China, Chengdu 610054, China.
Materials (Basel). 2018 Oct 19;11(10):2032. doi: 10.3390/ma11102032.
Conductive Poly (3,4-ethylenedioxythiophene) (PEDOT) nanofibers are uniformly deposited on ultrathin graphene oxide (GO) nanosheets via a simple and effective in situ polymerization process under ambient conditions. The as-prepared samples are characterized by field-emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), Raman spectra, Fourier transforms infrared spectra (FTIR), and electrochemical measurements. The results indicate that the as-obtained PEDOT⁻GO hybrid (GDOT) achieves excellent sodium storage properties. When explored as a new inorganic/polymeric electrode for sodium ion batteries (SIBs), the GDOT exhibits a high reversible capacity (338 mAh g), good cycling stability (234 mAh g after 400 cycles), and excellent rate capabilities (e.g., 62 mAh g at 30 A g) due to their ultrathin structure as well as conductive network. This easily scale-up-able and effective strategy shows great potential for large-scale energy applications.
通过在环境条件下简单有效的原位聚合过程，导电聚（3,4 - 亚乙基二氧噻吩）（PEDOT）纳米纤维均匀沉积在超薄氧化石墨烯（GO）纳米片上。通过场发射扫描电子显微镜（FE-SEM）、透射电子显微镜（TEM）、拉曼光谱、傅里叶变换红外光谱（FTIR）和电化学测量对所制备的样品进行表征。结果表明，所获得的PEDOT⁻GO杂化物（GDOT）具有优异的储钠性能。当作为钠离子电池（SIBs）的新型无机/聚合物电极进行探索时，由于其超薄结构以及导电网络，GDOT表现出高可逆容量（338 mAh g）、良好的循环稳定性（400次循环后为234 mAh g）和优异的倍率性能（例如，在30 A g下为62 mAh g）。这种易于放大且有效的策略在大规模能源应用中显示出巨大潜力。
