The effect of ultraviolet (UV) radiation, with wide range of wavelengths, on Nafion 112 membrane was studied at different UV exposure times up to 24 h. The energy deposited by UV photons on each sample varies with the radiation dose expressed by the exposure time. The influence of UV on the samples examined was investigated using various techniques. The chemical and crystal structures were detected via Fourier-transform infrared (FTIR) and wide-angle X-ray diffraction (WAXD), respectively. The electrical conductivity measurement was used to give an insight into the proton conductivity of the samples. The nanostructure was examined using positron annihilation lifetime (PAL) spectroscopy. Moreover, the mechanical properties of the irradiated samples were examined via the tensile test experiment. Water uptake was also measured for the investigated samples. Finally, the various membranes were evaluated as proton exchange membranes for fuel cell performance using a single cell test. All of the above measurements and tests were carried out for comparison for with those obtained for the sample without UV radiation. The maximum power density obtained for the sample exposed to UV radiation for 12 h was ~ 47 mW/cm², which is higher than that of ~ 37 mW/cm² for the sample as received. An improvement in cell performance was achieved by UV radiation with certain doses.

在长达24小时的不同紫外线照射时间下，研究了宽波长范围的紫外线（NUVION）对Nafion 112膜的影响。紫外线光子沉积在每个样品上的能量随辐射剂量（以曝光时间表示）而变化。使用各种技术研究了紫外线对所检查样品的影响。化学和晶体结构分别通过傅立叶变换红外（FTIR）和广角X射线衍射（WAXD）进行检测。使用电导率测量可以深入了解样品的质子电导率。使用正电子an灭寿命（PAL）光谱检查了纳米结构。此外，通过拉伸试验实验检查了辐照样品的机械性能。还测量了所研究样品的吸水率。最后，使用单电池测试将各种膜评估为质子交换膜的燃料电池性能。进行了所有上述测量和测试，以与没有紫外线辐射的样品获得的测量结果进行比较。暴露于紫外线辐射12小时的样品的最大功率密度为〜47 mW / cm²高于接收到的样品的〜37 mW / cm ²。通过一定剂量的紫外线辐射可以改善细胞性能。