The widespread participation of polymers in the membrane preparation has been considering to be critical for the development of proton exchange membranes (PEMs). For the polymers without functional groups to conduct protons, the introduction of proton conduction carriers with the formation of composite membranes is an effective strategy to prepare PEMs with the outstanding proton conductivity. However, there remains a potential risk of the components leaking from composite membranes due to the lack of the interaction force. Here, the composite of carbon nanotube oxide (OCNT) assembling with cadmium telluride (CdTe) and 1‐butyl‐3‐methylimidazolium hexafluorophosphate (bmimPF₆) was introduced into the system of phosphoric acid (PA) doping poly(vinylidene fluoride) (PVDF) with the formation of PVDF/OCNT‐CdTe‐bmimPF₆/85%PA membranes. PA molecules are anchored by the inorganics of OCNT‐CdTe‐bmimPF₆ and are stabilized in membranes. The high and stable proton conductivity values at the elevated temperature are obtained comparing the reported PVDF/bmimPF₆/PA membranes. Specifically, the proton conductivity value reached 1.28 × 10⁻¹ S/cm at 160 °C and the value is stable 1.70 × 10⁻² S/cm at 120 °C lasting for 350 h. The fine stability in components could make the membranes extricate from the predicament of proton conductivity decline exceeding 120 °C under anhydrous conditions in PVDF/bmimPF₆/PA membranes. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48833.

中文翻译：

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碳纳米管氧化物在无水质子交换膜中的应用研究

人们一直认为，聚合物在膜制备中的广泛参与对于质子交换膜（PEM）的开发至关重要。对于不带官能团的聚合物进行质子传导，引入质子传导载体并形成复合膜是制备具有优异质子传导性的PEM的有效策略。然而，由于缺乏相互作用力，仍然存在组分从复合膜泄漏的潜在风险。在这里，碳纳米管氧化物（OCNT）与碲化镉（CdTe）和1-3丁基-3-甲基咪唑六氟磷酸盐（bmimPF ₆）组装而成）被引入到掺杂磷酸（PA）的聚偏二氟乙烯（PVDF）系统中，形成了PVDF / OCNT-CdTe-bmimPF ₆ /85％PA膜。PA分子被OCNT-CdTe-bmimPF ₆的无机物锚定并稳定在膜中。通过比较报道的PVDF / bmimPF ₆ / PA膜，可以获得在高温下较高且稳定的质子电导率值。具体而言，质子电导率在160℃下达到1.28×10 ^-1 S / cm，稳定在1.70×10 ^-2。S / cm在120°C下持续350 h。在无水条件下，PVDF / bmimPF ₆ / PA膜中组分的良好稳定性可能会使膜脱离质子电导率下降超过120°C的困境。分级为4 +©2019 Wiley Periodicals，Inc.J.Appl。Polym。科学 2020，137，48833。