Manh Linh Le, Mobina Irshad, Thu Thuy Duong, Myung Hyun Park, Chang Hyun Lee, Juyoung Kim
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引用次数: 0
摘要
本文介绍了利用无机自由基清除剂克服含有全氟季铵（PFQA）离子膜的阴离子交换膜（AEM）化学降解的新策略。具体而言，研究人员合成了金属氧化物-全氟磺酸离子膜（MO-PFSA）复合纳米粒子，并考察了其在 PFQA 溶液中重新分散后的纳米再分散性。此外，还研究了 PFSA 当量（EW）和金属前驱体选择的影响，以及 MOx 复合纳米粒子在 PFQA 溶液中的纳米再分散性。结果表明，与其他MO-PFSA复合纳米粒子相比，使用硝酸铈前驱体制备的MOx复合纳米粒子在EW800 PFSA溶液中表现出最佳的自由基清除性能。图文摘要金属氧化物-全氟磺酸离子聚合物（MO-PFSA）复合纳米粉体在全氟季铵（PFQA）溶液中的纳米再分散机理
Nano-redispersible metal-oxide–ionomer composite nanopowders prepared using perfluorinated sulfonic acid ionomers in anion-exchange membrane and their radical scavenging performance
New strategies for overcoming the chemical degradation of anion-exchange membranes (AEM) containing perfluoroquaternary ammonium (PFQA) ionomer using inorganic free radical scavengers are described. To be more specific, the metal-oxide–perfluorinated sulfonic acid ionomer (MO–PFSA) composite nanoparticles were synthesized and investigated their nano-redispersibility after redispersing in the PFQA solution. The effect of the PFSA equivalent weight (EW) and metal precursor selection, and nano-redispersibility of MOx composite nanoparticles in the PFQA solution were also investigated. It was reported that MOx composite nanoparticles prepared using cerium nitrate precursor showed the best radical scavenging performance in the presence of EW800 PFSA solution compared to other MO–PFSA composite nanoparticles.
Graphical abstract
Mechanism of nano-redispersion of the metal-oxide–perfluorinated sulfonic acid ionomer (MO–PFSA) composite nanopowders in perfluoroquaternary ammonium (PFQA) solution
期刊介绍：
Original research on all aspects of polymer science, engineering and technology, including nanotechnology
Presents original research articles on all aspects of polymer science, engineering and technology
Coverage extends to such topics as nanotechnology, biotechnology and information technology
The English-language journal of the Polymer Society of Korea
Macromolecular Research is a scientific journal published monthly by the Polymer Society of Korea. Macromolecular Research publishes original researches on all aspects of polymer science, engineering, and technology as well as new emerging technologies using polymeric materials including nanotechnology, biotechnology, and information technology in forms of Articles, Communications, Notes, Reviews, and Feature articles.
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