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Synthesis of electro-active membranes by chemical vapor deposition (CVD) process

机译：通过化学气相沉积（CVD）工艺合成电活性膜

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In the past two decades, many research is being carried out on coating of textile membranes with conductive polymers. In order to functionalize the textile membranes, coating of different intrinsically conductive polymers can be applied on these membranes through appropriate coating techniques like electrochemical polymerization, wet chemical oxidation and chemical vapor deposition (CVD). Noticeably, CVD process is one of the most suitable and environment friendly technique. In this research, microporous polyester and polytetrafluoroethylene (PTFE) membranes were coated with conductive poly(3,4-ethylenedioxythiophene) (PEDOT) by CVD process in the presence of ferric(III)chloride (FeCl_3) used as an oxidant. Polymerization of PEDOT on the surface of membranes and pore size was examined by optical microscope and scanning electron microscopy (SEM). Structural analysis investigated with ATR-FTIR, which revealed the successful deposition of PEDOT on membranes without damaging their parent structures. The amount of PEDOT in PEDOT-coated polyester and PTFE membranes was explored with the help of thermogravimeteric analysis. Electrical resistance values of PEDOT-coated membranes were measured by two probe method. The effect of different electrolyte solutions such as, distilled H_2O, Na_2SO_4, HCl, and H_2SO_4 on electrical properties of produced conductive membranes was investigated after dipping for certain period of time. It was found that membranes dipped in H_2SO_4 show very low electrical resistance values, i.e. 0.85 kΩ for polyester membrane and 1.17 kΩ for PTFE membrane. The obtained PEDOT-coated electro-active membranes may find their possible utility in fuel cells, enzymatic fuel cells, and antistatic air filter applications.
机译：在过去的二十年中，正在对用导电聚合物涂覆纺织品薄膜进行许多研究。为了使纺织膜功能化，可以通过适当的涂覆技术（例如电化学聚合，湿式化学氧化和化学气相沉积（CVD））在这些膜上涂覆不同的本征导电聚合物涂层。值得注意的是，CVD工艺是最合适且环境友好的技术之一。在这项研究中，在用作氧化剂的三氯化铁（FeCl_3）存在下，通过CVD工艺在微孔聚酯和聚四氟乙烯（PTFE）膜上涂覆了导电聚（3,4-乙撑二氧噻吩）（PEDOT）。通过光学显微镜和扫描电子显微镜（SEM）检查PEDOT在膜表面上的聚合和孔径。使用ATR-FTIR进行的结构分析表明，PEDOT成功沉积在了膜上，而没有损坏其母体结构。借助热重分析法，研究了涂有PEDOT的聚酯和PTFE膜中PEDOT的量。通过两个探针法测量涂有PEDOT的膜的电阻值。浸泡一定时间后，研究了不同的电解质溶液，如蒸馏水H_2O，Na_2SO_4，HCl和H_2SO_4对生产的导电膜电学性能的影响。发现浸渍在H_2SO_4中的膜显示出非常低的电阻值，即，聚酯膜为0.85kΩ，PTFE膜为1.17kΩ。获得的涂有PEDOT的电活性膜可能在燃料电池，酶燃料电池和抗静电空气过滤器应用中发现其可能的用途。

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