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首页> 外文期刊>International Journal of Electrochemical Science >One-step Electrochemical Synthesis of Polyaniline/Metallic Oxide Nanoparticle (γ-Fe2O3) Thin Film
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One-step Electrochemical Synthesis of Polyaniline/Metallic Oxide Nanoparticle (γ-Fe2O3) Thin Film

机译：一步法电化学合成聚苯胺/金属氧化物纳米粒子（γ-Fe 2 O 3 ）薄膜

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摘要

Polyaniline and metallic oxide (-Fe2O3) composite thin film was simultaneously synthesized using anelectrochemical technique in a solution containing aniline, oxalic acid, and iron(III) sulfate in analkaline medium. The results of the reaction process, which was monitored using infrared spectra at a-1 o specific wavelength of 638 cm along with an X-ray diffractogram of the respective angles 30.6 ,o o 35.4 , and 60.7 2 degree, indicated the presence of (-Fe2O3) and polyaniline in a single step.UV-Vis spectra suggested that the metal oxide interacted synergistically with the quinoid and benzoidgroups, with absorption of approximately 560 nm and 280 nm present in the polymeric matrix.o Thermogravimetric analysis (TGA) of the composite lost 10% of the weight at approximately 188 C.Together with TEM images, the results showed that iron oxide particles are nanometer-sized(126 30 nm). Furthermore, SEM images show that multiple cycles of synthesis modify themechanical properties of films prepared simultaneously with (-Fe2O3). The voltammetric behavior ofthe composite showed a reversible process. Furthermore, a preliminary test showed that our materialhas the potential to be applied in gas sensors.
机译：在碱性介质中，在含有苯胺，草酸和硫酸铁（III）的溶液中，通过电化学技术同时合成了聚苯胺和金属氧化物（-Fe2O3）复合薄膜。反应过程的结果通过使用红外光谱在638 cm的a-1 o特定波长下以及相应角度30.6，oo 35.4和60.7 2度的X射线衍射图进行监控，表明存在（- Fe2O3）和聚苯胺的一步.UV-Vis光谱表明，金属氧化物与醌型和苯甲酰基基团协同相互作用，聚合物基质中存在约560 nm和280 nm的吸收。o复合材料的热重分析（TGA）在约188°C时，其重量减少了10％。结合TEM图像，结果显示氧化铁颗粒为纳米级（126 30 nm）。此外，SEM图像显示，多个合成循环改变了与（-Fe 2 O 3）同时制备的膜的力学性能。复合材料的伏安行为显示出可逆的过程。此外，初步测试表明我们的材料具有在气体传感器中应用的潜力。

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