【摘 要】
：
Polyaniline (PANI)/Ce(NO3)3 composite with short fiber-like shape was synthesized successfully in a poly (2-arcylamido-2-methylpropane sulfonic acid) aqueous solution.A comparison of SEM images found that short fiber-like composites can be obtained by con
【机 构】
：
School of Materials Science and Engineering, Central South University, Changsha 410083, China;Key La
【出 处】
：
武汉理工大学学报（材料科学版）（英文版）
论文部分内容阅读
Polyaniline (PANI)/Ce(NO3)3 composite with short fiber-like shape was synthesized successfully in a poly (2-arcylamido-2-methylpropane sulfonic acid) aqueous solution.A comparison of SEM images found that short fiber-like composites can be obtained by controlling the dosage of Ce(NO3)3.The length and diameter of short fiber-like PANI/Ce(NO3)3 composite was about 630 and 200 nm,respectively.A special conjugated structure had formed via Ce3+ ions and-NH-group in the quinonoid ring of PANI,which was characterized by means of Fourier transform infrared (FTIR) spectroscopy,Ultraviolet-visible (UV-Vis)spectroscopy and X-ray photoelectron spectroscopy (XPS).Short fiber-like PANI/Ce(NO3)3 composite exhibited a high conductivity,a large capacitance and an enhanced anticorrosion property.Linear four-probe method confirmed that the electrical conductivity of composites was improved with the presence of Ce3+ ions.The corrosion potential of PANI/Ce(NO3)3 composite increased to-79 mV at 10 wt％ of Ce(NO3)3.Meanwhile,the minimum density of corrosion current (1.4 μA/cm2) was also achieved.
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