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首页> 外文期刊>Biomolecular engineering >Preparation of gradually componential metal electrode on solution-casted Nafiontrade mark membrane.
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Preparation of gradually componential metal electrode on solution-casted Nafiontrade mark membrane.

机译：在溶液流延的Nafiontrade商标膜上制备逐渐组成的金属电极。

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A typical ionic polymer-metal composite consists of a thin perfluorinated ionomer membrane and noble metal electrodes plated on both surfaces. It undergoes a large bending motion when an electric field is applied hence exhibits deformation by a certain amount of cation. With proper arrangement and package, a great number of "smart devices" are anticipated. In this study, a solution-cast route was used to prepare the electro-active polymer membrane and platinum electrodes were fabricated onto the membrane through electro-less plating. The ionic polymer used is the commercial Nafiontrade mark, the perfluoro-sulfonated ionomer membrane, developed by DuPont Co. Nafiontrade mark membrane was cast by the solution-casting route and then loaded with different weights simultaneously. The optimized processing conditions, membrane properties and electrodes behaviors were investigated. The results of shift in WAXD peaks showed that weights delineated the crystallinity of the solution-cast membranes. The number andsize of the crystalline domains of solution-cast membrane decrease as studied by SAXS. The Young's modulus of solution-cast membrane decreases as increasing weight because of the loss of crystallinity (180-140MPa). A finely dispersed platinum particle deeper and gradient penetrating within the near-boundary region with a smaller average particle size and more uniform distribution could be obtained through a reverse electro-less plating. Its surface roughness is 3nm comparing to 52nm of a typical process. But its surface resistance is too high (3.5Omega) to activate the bending motion. To solve this problem, we coated the second Pt electrodes by a typical electro-less plating, and the resistance decreased to 0.7Omega. The results depicted that the fabricated IPMC shows longer bending lifetime than typical IPMC. In a 0.09% NaCl solution, the device was able to vibrate for 8h under a 5V, 0.1Hz actuation.
机译：典型的离子聚合物-金属复合材料由薄的全氟化离聚物膜和镀在两个表面上的贵金属电极组成。当施加电场时它经历大的弯曲运动，因此由于一定量的阳离子而表现出变形。通过适当的布置和包装，可以预期会有大量的“智能设备”。在这项研究中，采用溶液浇铸法制备电活性聚合物膜，并通过化学镀在膜上制备铂电极。所用的离子聚合物是商品化的Nafiontrade商标，即由杜邦公司开发的全氟磺化离聚物膜。通过溶液浇铸法浇铸Nafiontrade商标膜，然后同时加载不同的重量。研究了优化的工艺条件，膜性能和电极性能。 WAXD峰位移的结果表明，重量描述了溶液流延膜的结晶度。如通过SAXS研究的，溶液流延膜的结晶域的数量和大小减小。溶液流延膜的杨氏模量随着重量增加而降低，这是由于结晶度的损失（180-140MPa）。通过反化学镀可以得到较细的分散的铂颗粒，其在近边界区域内更深且具有梯度渗透性，具有较小的平均粒径和更均匀的分布。与典型工艺的52nm相比，其表面粗糙度为3nm。但是其表面电阻太大（3.5Ω），无法激活弯曲运动。为了解决这个问题，我们通过典型的化学镀覆法涂覆了第二个Pt电极，电阻降低到0.7Ω。结果表明，所制造的IPMC的弯曲寿命比典型IPMC更长。在0.09％NaCl溶液中，该器件能够在5V，0.1Hz激励下振动8小时。

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