Chen, Nanjun; Paek, Sae Yane; Lee, Ju Yeon; Park, Jong Hyeong; Lee, So Young; Lee, Young Moo published their research in Energy & Environmental Science in 2021. The article was titled 《High-performance anion exchange membrane water electrolyzers with a current density of 7.68 A cm-2 and a durability of 1000 hours》.Formula: C6H11NO The article contains the following contents:
Low-cost anion exchange membrane (AEM) water electrolyzers (AEMWEs) are a new technol. for the production of high-purity hydrogen; however, their c.d. and durability are far lower than those of proton exchange membrane water electrolyzers (PEMWEs). Here, we report poly(fluorenyl-co-aryl piperidinium) (PFAP)-based anhydrous cathode AEMWEs that exceed the state-of-the-art PEMWEs with respect to c.d. In addition to a rational electrode design, PFAP-based AEMs with a high water diffusivity and ion conductivity are crucial for high-performance AEMWEs. Using platinum-group-metal (PGM) catalysts, the present AEMWEs achieved a new record c.d. of 7.68 A cm-2 at 2.0 V with a 1 M KOH anode, which surpasses that of state-of-the-art PEMWEs (6 A cm-2 at 2.0 V). PGM-free AEMWEs displayed an excellent c.d. of 1.62 A cm-2 at 2.0 V. Importantly, PGM and PGM-free AEMWEs operated stably under a 0.5 A cm-2 c.d. at 60 °C for more than 1000 h. This work sheds light on current high-performance AEMWEs. In the experiment, the researchers used many compounds, for example, 1-Methyl-4-piperidone(cas: 1445-73-4Formula: C6H11NO)
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.Formula: C6H11NO
Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem