Lu Qi, Zhao Qiang, Zhang Hongming, Li Ji, Wang Xianhong, Wang Fosong
Key Laboratory of Polymer Eco-materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of China.
ACS Macro Lett. 2013 Feb 19;2(2):92-95. doi: 10.1021/mz3005605. Epub 2013 Jan 9.
Water dispersed conducting polyaniline nanofibers doped with phosphate ester have been synthesized and characterized by scanning electron microscopy (SEM), wide-angled X-ray diffraction (WAXD), X-ray photoelectron spectroscopy (XPS), UV-visible spectroscopy, and Fourier transform infrared (FTIR) spectroscopy. Next, a systematic and careful electrochemical test was carried out to deeply investigate their potential application for lithium-oxygen battery. The experimental result showed us that this low cost and easily produced material could catalyze the discharge reaction independently, and after an initial degradation from 3260 to 2320 mAh/g PANI during the first three cycles at current density of 0.05 mA/cm, its discharge capacity kept relatively stable in the next 27 cycles with only a 4% loss, which may provide a new choice for fabrication of high-capacity rechargeable lithium-oxygen battery for practical application.
已合成了掺杂磷酸酯的水分散导电聚苯胺纳米纤维，并通过扫描电子显微镜（SEM）、广角X射线衍射（WAXD）、X射线光电子能谱（XPS）、紫外可见光谱和傅里叶变换红外（FTIR）光谱对其进行了表征。接下来，进行了系统而细致的电化学测试，以深入研究它们在锂氧电池中的潜在应用。实验结果表明，这种低成本且易于制备的材料能够独立催化放电反应，并且在电流密度为0.05 mA/cm²的前三个循环中，其放电容量从3260 mAh/g PANI初始降解至2320 mAh/g PANI后，在接下来的27个循环中保持相对稳定，仅损失4%，这可能为实际应用中制造高容量可充电锂氧电池提供新的选择。
