In 2022,Gao, Wei Ting; Gao, Xue Lang; Gou, Wei Wei; Wang, Jia Jun; Cai, Zhi Hong; Zhang, Qiu Gen; Zhu, Ai Mei; Liu, Qing Lin published an article in Journal of Membrane Science. The title of the article was 《High-performance tetracyclic aromatic anion exchange membranes containing twisted binaphthyl for fuel cells》.Application In Synthesis of 1-Methyl-4-piperidone The author mentioned the following in the article:
The development of high-performance anion exchange membranes (AEMs) has become more urgent for fuel cells. One of the critical challenges is to prepare AEMs with sufficient ion conductivity and robust alk. endurance. In this work, bulky twisted binaphthyl units are introduced into the backbones of AEMs by a one-pot superacid-catalyzed polymerization to enhance both the conductivity and stability. The binaphthyl unit can depress the chain packing d. and enlarge the free volume of the AEMs, conducing to form well-defined microphase separation and to build well-developed ion-conductive highways. The poly(binaphthyl piperidinium)-based AEM (QABNP) shows the highest OH- conductivity of 135.25 mS cm-1 superior to the poly(quaterphenyl piperidinium)-based AEM (QAQPP) (109.12 mS cm-1). Meanwhile, the QABNP AEM exhibits about 90% conductivity retention after being tested in a harsh alk. environment (2 M NaOH at 80 °C) for 1080 h. Importantly, the QABNP based single cell possesses the highest peak power d. (PPD) of 1.16 W cm-2 at a high c.d. of 2.37 A cm-2 with a low high frequency resistance (HFR) of 0.04 Ω cm2. This study demonstrates the merits of bulky twisted binaphthyl incorporated in a polymer backbone for improving AEM performances.1-Methyl-4-piperidone(cas: 1445-73-4Application In Synthesis of 1-Methyl-4-piperidone) was used in this study.
1-Methyl-4-piperidone(cas: 1445-73-4) is a member of piperidine. Piperidine is a key saturated heterocyclic scaffold found in several of the top-selling small molecule pharmaceuticals and natural alkaloids, with a diverse range of biological activities. Hence, continuous efforts have been made to develop convenient methods to prepare piperidine derivatives.Application In Synthesis of 1-Methyl-4-piperidone
Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem