In 2022,Zeng, Minghao; Liu, Wenqi; Guo, Haikun; Li, Tingting; Li, Qijia; Zhao, Chengji; Li, Xiaojin; Li, Haolong published an article in ACS Applied Energy Materials. The title of the article was 《Polyoxometalate-Cross-Linked Proton Exchange Membranes with Post-Assembled Nanostructures for High-Temperature Proton Conduction》.Safety of 1-Methyl-4-piperidone The author mentioned the following in the article:
High-temperature proton exchange membranes (HT-PEMs) are key components in high-temperature energy storage and conversion technologies, which require excellent proton conductivity and mech. strength. However, it is difficult for HT-PEMs to balance their mech. and conductive properties. Here, we present a strategy to prepare HT-PEMs based on the combination of polyoxometalate (POM)-dominated noncovalent crosslinking and H3PO4 (PA)-induced post-assembly. Hybrid membranes containing polyvinylpyrrolidone (PVP), poly(terphenyl piperidine) (PTP), and H3PW12O40 (PW) are prepared, where the polymers are electrostatically cross-linked by PW and maintain certain mobility. When the membranes adsorb PA, the polarity difference between the PVP-PW-PA moieties and the PTP-PW-PA moieties increases, causing the chains to rearrange into bicontinuous structures via a post-assembly process. The resultant membranes show a break strength over 7 MPa and a proton conductivity of ~55 mS cm-1 at 160°C. The high-temperature supercapacitors based on such membranes exhibit a specific capacitance of 145.4 F g-1 and a capacitance retention of 80% after 3000 charge-discharge cycles at 150°C. Their H2/air fuel cells display a peak power of 273.6 mW cm-2 at 160°C. This work provides a paradigm for using POMs as dynamic cross-linkers to fabricate nanostructured PEMs, which paves a feasible route to developing high-performance electrolyte materials. The experimental process involved the reaction of 1-Methyl-4-piperidone(cas: 1445-73-4Safety of 1-Methyl-4-piperidone)
1-Methyl-4-piperidone(cas: 1445-73-4) is a member of piperidine. Piperidine is ubiquitous structural motif widely occurred in diverse synthetically and naturally occurring bioactive molecules. Piperidines are an immensely important class of compounds medicinally: the piperidine ring is the most common heterocyclic subunit among FDA approved drugs.Safety of 1-Methyl-4-piperidone
Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem